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Question 1
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You see a 23 year old women in clinic complaining of vaginal discharge. The lab phone to tell you microscopy and staining shows a gram negative diplococcus. Which organism is most likely to be responsible?
Your Answer: Neisseria gonorrhoeae
Explanation:The most common gram negative diplococci include Neisseria, haemophilus and Moraxella.
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This question is part of the following fields:
- Microbiology
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Question 2
Correct
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Question 3
Correct
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Which of the following leaves the pelvis via the greater sciatic foramen?
Your Answer: Pudendal Nerve
Explanation:The pudendal nerve is formed by sacral nerve roots S2, S3 and S4 almost immediately as they exit the spinal foramina. The pudendal nerve exits the pelvis via the greater sciatic foramen, travels behind the sacrospinous ligament before re-entering the pelvis via the lesser sciatic foramen. It is an important nerve to be aware of as it supplies sensation to the genitalia and can also be damaged/compressed at a number of places along its course. Image sourced from Wikipedia
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This question is part of the following fields:
- Anatomy
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Question 4
Incorrect
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Question 5
Incorrect
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A 60-year-old lady is found to have a grossly palpable adnexal mass on her left side on pelvic examination. This is the first time it has been detected. She attained menopause at 52 years of age. The last pelvic examination, which was done 4 years ago, was normal.
What is her most likely diagnosis?Your Answer: Endometrial carcinoma with metastases.
Correct Answer: Ovarian carcinoma.
Explanation:Her most likely diagnosis would be an ovarian carcinoma. Any palpable adnexal mass in a post-menopausal woman is a red flag for an ovarian malignancy and should be assumed so until proven otherwise.
Endometrial cancer typically presents with a post-menopausal bleed and although there might be uterine enlargement, an adnexal mass is generally absent.
It is very rare for follicular cysts to develop following menopause and it is uncommon for post-menopausal women to have a benign ovarian tumour, which is more common in younger women. A degenerating leiomyoma would be unlikely in this case, especially since her pelvic examination three years ago was normal (no history of leiomyoma noted).
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This question is part of the following fields:
- Gynaecology
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Question 6
Correct
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A 39-year-old woman comes to your clinic for assessment and advice as she is planning to conceive over past three months with no success.
She has a history of obesity with BMI 40 and type 2 diabetes mellitus with latest HbA1c value of 11%. She had her last eye check six months ago which shows no evidence of retinopathy, and she does not have diabetic nephropathy.
Among the following which is a contraindication to pregnancy in this case?Your Answer: History of type 2 diabetes mellitus with HBA1C above 10
Explanation:In patients who have an HbA1C value above 10%, it is better to postpone pregnancy until diabetes is under control. Also in those patients with type 2 diabetes mellitus, who are suffering from severe gastroparesis, those with advanced retinopathy, with severe diabetic renal disease and severe ischemic heart disease with uncontrolled hypertension pregnancy is contraindicated.
All the other options mentioned are incorrect.
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This question is part of the following fields:
- Obstetrics
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Question 7
Incorrect
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Question 8
Correct
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A 15 year old girl is being investigated for primary amenorrhoea. She has normal FSH,LH and E2 levels on hormone profiling and normal secondary sexual characteristics. An ultrasound shows no uterus. What is the likely diagnosis?
Your Answer: Rokitansky-Kuster-Hauser syndrome
Explanation:Mullerian agenesis occurs in 1 in 5000 to 1 in 40000 girls. The Mullerian system does not develop which results in an absent uterus and upper vagina. This condition is also known as Rokitansky-Kuster-Hauser syndrome, The ovarian function is normal and so the most common presentation is amenorrhea in the presence of an otherwise normal pubertal development.
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This question is part of the following fields:
- Embryology
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Question 9
Correct
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A 20-year-old female patient who is experiencing pelvic pain is being cared for at your clinic. She describes bilateral pain that began gradually and was accompanied by fever, vaginal discharge, and mild dysuria.
Her pelvic examination demonstrates uterine, adnexal, and cervical motion tenderness.
Which of the following is the most likely cause of the pain?Your Answer: PID
Explanation:Pelvic inflammatory disease (PID) refers to acute and subclinical infection of the upper genital tract in women, involving any or all of the uterus, fallopian tubes, and ovaries; this is often accompanied by involvement of the neighbouring pelvic organs. It results in endometritis, salpingitis, oophoritis, peritonitis, perihepatitis, and/or tubo-ovarian abscess.
Lower abdominal pain is the cardinal presenting symptom in women with PID. The abdominal pain is usually bilateral and rarely of more than two weeks’ duration. The character of the pain is variable, and in some cases, may be quite subtle. The recent onset of pain that worsens during coitus or with jarring movement may be the only presenting symptom of PID. The onset of pain during or shortly after menses is particularly suggestive.
Other non-specific complaints include urinary frequency and abnormal vaginal discharge.
Ovarian cyst, uterine leiomyoma, appendicitis or ectopic pregnancy do not present with fever and vaginal discharge although tenderness is noted in appendicitis and ectopic pregnancy. Therefore, these options do not explain the patient’s symptoms.
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This question is part of the following fields:
- Gynaecology
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Question 10
Correct
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Question 11
Correct
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A 23-year-old woman at 36 weeks of gestation visits your clinic for follow up.
On pelvic ultrasound you noted a decrease in amniotic fluid, and all her previous scans were normal.
When asked she recollected on experiencing an episode of urinary incontinence yesterday, were she had wet her undergarment with a sudden gush of clear fluid.
Considering the presentation, which of the following is MOST likely the cause of oligohydramnios in this patient?Your Answer: Premature preterm rupture of membrane
Explanation:This patient presenting with oligohydramnios in her third trimester and had reported an episode of sudden gush of fluid secondary to ruptured membrane which she had mistaken to be “urinary incontinence”. Hence, the most likely cause of oligohydramnios in this patient will be premature preterm rupture of membrane (PPROM).
An amniotic fluid volume which is less than expected for gestational age is called as Oligohydramnios and is typically diagnosed by ultrasound examination. This condition can be qualitatively described as reduced amniotic fluid volume and quantitatively as amniotic fluid index ≤5 cm or a single deepest pocket <2 cm. Oligohydramnios either can be idiopathic or may have a maternal, fetal or placental cause. Fetal prognosis in this case depends on several factors like the underlying cause, the severity of loss ie. reduced versus no amniotic fluid state and the gestational age at which oligohydramnios occurred. As an adequate volume of amniotic fluid is critical for the normal fetal movements, for fetal lung development and for cushioning the fetus and umbilical cord from uterine compression, so pregnancies complicated with oligohydramnios are at higher risk for fetal deformation, pulmonary hypoplasia and umbilical cord compression.
Oligohydramnios is also associated with an increased risk for fetal or neonatal death, which can either be related to the underlying cause of reduction in amniotic fluid volume or due to the sequelae caused due to reduced amniotic fluid volume. The amniotic fluid volume reflects the balance between fluid production and movement of fluid out of the amniotic sac and the most common mechanisms behind oligohydramnios are fetal oliguria/anuria or fluid loss due to rupture of membranes; also reduction in the amount of lung fluid or increased swallowing do not play major roles in this. Idiopathic cases as in idiopathic oligohydramnios, may be due to alterations in the expression of water pores like aquaporin 1 and aquaporin 3, present in fetal membranes and placenta.Causes of oligohydramnios
a) Maternal causes includes:
– Medical or obstetric conditions associated with uteroplacental insufficiency like preeclampsia, chronic hypertension, collagen vascular disease, nephropathy, thrombophilia.
– Intake of medications like angiotensin converting enzyme inhibitors, prostaglandin synthetase inhibitors, trastuzumab.
b) Placental causes are:
– Abruption of placenta
– Twin polyhydramnios-oligohydramnios sequence which is the Twin to twin transfusion
– Placental thrombosis or infarction
c) Fetal cases leading to oligohydramnios are:
– Chromosomal abnormalities
– Congenital abnormalities which are associated with impaired urine production
– Growth restriction
– Demise
– Post-term pregnancy
– Ruptured fetal membranes
– Infections
– Idiopathic causesDuring First trimester: Etiology of oligohydramnios during the first trimester is often unclear. As the gestational sac fluid is primarily derived from the fetal surface of the placenta via transamniotic flow from the maternal compartment and secretions from the surface of the body of the embryo reduced amniotic fluid prior to 10 weeks of gestation is rare.
During Second trimester: Fetal urine begins to enter the amniotic sac and fetus begins to swallow amniotic fluid by the beginning of second trimester, therefore, during this period any disorders related to the renal/urinary system of the fetus begins to play a prominent role in the etiology of oligohydramnios. Some of such anomalies include intrinsic renal disorders like cystic renal disease and obstructive lesions of the lower urinary tract like posterior urethral valves or urethral atresia. Other common causes of oligohydramnios in the second trimester are maternal and placental factors and traumatic or nontraumatic rupture of the fetal membranes.
During Third trimester: Oligohydramnios which is first diagnosed in the third trimester is often associated with PPROM or with conditions such as preeclampsia or other maternal vascular diseases leading to uteroplacental insufficiency. Oligohydramnios frequently accompanies fetal growth restriction as a result of uteroplacental insufficiency.
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This question is part of the following fields:
- Obstetrics
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Question 12
Correct
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A 33-year-old woman at 37 weeks of gestation presented to the emergency department due to breech presentation which was confirmed on ultrasound. There is also a failed external cephalic version.
Which of the following is considered the most appropriate next step in managing the patient's condition?Your Answer: Elective caesarean delivery at 38 weeks of gestation
Explanation:Breech presentation refers to the foetus in the longitudinal lie with the buttocks or lower extremity entering the pelvis first.
The current recommendation for the breech presentation at term includes offering external cephalic version (ECV) to those patients that meet criteria, and for those whom are not candidates or decline external cephalic version, a planned caesarean section for delivery sometime after 39 weeks.
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This question is part of the following fields:
- Obstetrics
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Question 13
Correct
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In twin deliveries: Which is true?
Your Answer: There is increased risk of postpartum haemorrhage
Explanation:Twin gestations are at increased risk for postpartum haemorrhage (PPH). A number of maternal and peripartum factors are associated with PPH requiring blood transfusion in twin gestations. Reducing the rate of caesarean delivery in twin pregnancies may decrease maternal hemorrhagic morbidity.
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This question is part of the following fields:
- Obstetrics
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Question 14
Correct
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A 25-year-old lady is somewhat jaundiced, has black urine, and has pruritus of her abdomen skin at 30 weeks of pregnancy in her first pregnancy. Her blood pressure is 130/80 mmHg, her fundal height is 29 cm above the pubic symphysis, and her liquid volume is a little lower than expected. Laboratory investigations reveal:
Serum bilirubin (unconjugated): 5 mmol/L (0-10)
Serum bilirubin (conjugated): 12 mmol/L (0-5)
Serum alkaline phosphatase (ALP): 450U/L (30--350)
Serum alanine aminotransferase (ALT) 45U/L (<55)
Serum bile acids: 100 mmol/L (1-26)
The most likely cause for her presentation is?Your Answer: Obstetric cholestasis.
Explanation:The correct answer is Obstetric Cholestasis.
The characteristics (elevated bile acids, conjugated bilirubin, and alkaline phosphatase (ALP) levels) are typical with obstetric cholestasis, which affects roughly 3-4 percent of pregnant women in Australia. Obstetric cholestasis is diagnosed when otherwise unexplained pruritus occurs in pregnancy and abnormal liver function tests (LFTs) and/or raised bile acids occur in the pregnant woman and both resolve after delivery. Pruritus that involves the palms and soles of the feet is particularly suggestive.
Liver function tests and bile acid levels measurements are used to validate this diagnosis.
All of the other diagnoses are theoretically possible, but unlikely.
On liver function tests, hepatitis A and acute fatty liver of pregnancy (which is frequently associated with severe vomiting in late pregnancy) usually show substantially worse hepatocellular damage.
Pre-eclampsia is connected with hypertension and proteinuria (along with changes in renal function and, in certain cases, thrombocytopenia), while cholelithiasis is associated with obstructive jaundice and pale stools due to a stone in the CBD. -
This question is part of the following fields:
- Obstetrics
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Question 15
Correct
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We can detect the fetal heart beat by Sonography (transvaginal) at:
Your Answer: 6 weeks
Explanation:The earliest fetal heart rate detected transvaginally was at 6 weeks 0 days of gestation compared with 7 weeks 0 days transabdominally. The transvaginal Doppler method was also more successful in detecting the fetal heart rate in women with a retroverted uterus (p < or = 0.01).
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This question is part of the following fields:
- Physiology
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Question 16
Incorrect
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A 36 year old woman has a pelvic ultrasound scan showing multiple fibroids. What is the most common form of fibroid degeneration?
Your Answer: Red degeneration
Correct Answer: Hyaline degeneration
Explanation:Hyaline degeneration is the most common form of fibroid degeneration. Fibroids:
Risk Factors
– Black Ethnicity
– Obesity
– Early Puberty
– Increasing age (from puberty until menopause)
Protective Factors
– Pregnancy
– Multiparity -
This question is part of the following fields:
- Clinical Management
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Question 17
Correct
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A 65-year-old female patient complained of two months of painless vaginal bleeding. The endometrial thickness is 6mm, according to transvaginal ultrasound. To rule out endometrial cancer, you plan to send this patient to a gynaecologist for an endometrial biopsy with or without hysteroscopy.
Which of the following characteristics in your medical history is linked to a higher risk of endometrial cancer?Your Answer: Polycystic ovary syndrome associated with chronic anovulation
Explanation:Women with polycystic ovary syndrome (PCOS) have a 2.7-fold increased risk for developing endometrial cancer. A major factor for this increased malignancy risk is prolonged exposure of the endometrium to unopposed oestrogen that results from anovulation.
Additionally, secretory endometrium of some women with PCOS undergoing ovulation induction or receiving exogenous progestin exhibits progesterone resistance accompanied by dysregulation of gene expression controlling steroid action and cell proliferation.
Other risk factors include nulliparity, early menarche and late menopause, obesity and family history of endometrial cancer. Which rules out all the other options.
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This question is part of the following fields:
- Gynaecology
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Question 18
Incorrect
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According to the NICE guidelines on intrapartum care a multiparous women with intact membranes should be offered amniotomy if there is inadequate progress of the active second stage of labour (in terms of rotation and/or descent of the presenting part) after how long?
Your Answer: 2 hours
Correct Answer: 30 minutes
Explanation:Multiparous women active 2nd stage labour: Suspect delay if progress inadequate after 30 minutes Diagnose delay if progress inadequate after 1 hour If delay is suspected amniotomy should be offered if membranes are intact If delay diagnosed then preparations should be made for C-section Nulliparous women active 2nd stage labour: Suspect delay if progress inadequate after 1 hour Diagnose delay if progress inadequate after 2 hours If delay is suspected amniotomy should be offered if membranes are intact If delay diagnosed then preparations should be made for C-section
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This question is part of the following fields:
- Clinical Management
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Question 19
Correct
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Which of the following is true about the origin of the ovarian artery?
Your Answer: It arises from the Abdominal Aorta
Explanation:The ovarian arteries are considered the main blood supply for the ovaries. The ovarian arteries usually arise from the lateral aspect of the abdominal artery, though in some instances they may arise from the renal or iliac arteries.
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This question is part of the following fields:
- Anatomy
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Question 20
Correct
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Question 21
Correct
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A 28-year-old primigravid woman at 18 weeks of gestation comes to office for a routine prenatal visit and anatomy ultrasound. Patient feels well generally and has no concerns, also has no chronic medical conditions, and her only daily medication is a prenatal vitamin. She is accompanied by her mother as her husband was unable to get off work.
Ultrasound shows a cephalic singleton fetus measuring at <10th percentile consistent with severe growth restriction. There are bilateral choroid plexus cysts, clenched fists, and a large ventricular septal defect. Amniotic fluid level is normal with a posterior and fundal placenta.
Which of the following statements is the most appropriate initial response by the physician?Your Answer: There are some things about your ultrasound that I need to discuss with you; is it okay to do that now?
Explanation:SPIKES protocol for delivering serious news to patients includes:
– Set the stage includes arranging for a private, comfortable setting space, introduce patient/family & team members, maintain eye contact & sit at the same level and schedule appropriate time interval & minimize space for interruptions.
– Perception: Use open-ended questions to assess the patient’s/family’s perception of the medical situation.
– Invitation: should ask patient/family how much information they would like to know and remain cognizant of their cultural, educational & religious issues.
– Knowledge:
Warn the patient/family that serious news is coming, Speak in simple & straightforward terms, stop & check whether they are understanding.
– Empathy: Express understanding & give support when responding to emotions
– Summary & strategy: Summarize & create follow-through plan, including end-of-life discussions if applicable.The ultrasound findings of severe growth restriction, bilateral choroid plexus cysts, clenched fists, and a large ventricular septal defect are consistent with trisomy 18, the second most common autosomal trisomy, which results in fetal loss or neonatal death in the majority of cases. In this case, the physician is to deliver a very serious news to the patient who is presenting for a routine visit, believing her pregnancy was normal. When serious news is unexpected, it is especially important to prepare the patient and determine how the patient would like to receive the results.
The physician is supposed to provide a comfortable setting and must ask patient’s permission to share the results. This allows the patient to respond with her preference and avoids making assumptions about whom, if anyone, she would like to be present with. For example, some patients may prefer to defer discussion of the results until a major support person (eg, husband, mother) is present. In addition to establish patient’s preferred setting, physician should determine how much information the patient would like to receive. Some patients will prefer a detailed medical information about diagnosis and prognosis, whereas others may prefer to have time to process the news emotionally and receive further information later. The SPIKES protocol (Setting the stage, Perception, Invitation, Knowledge, Empathy, and Summary/strategy) is a six-step model that can guide physicians in delivering serious news to patients.These statements do not allow the patient to choose how she receives the results and assume that she does not want her mother present.
This statement fails to prepare the patient for serious news and prematurely jumps to sharing results using technical, medical terminology that may be difficult for the patient to comprehend. This approach could also be upsetting to a patient undergoing a routine ultrasound who is not expecting anything abnormal.
This statement inappropriately determines when and with whom the patient should receive the results. Instead the patient should be asked how she prefers to receive the results.
While delivering unexpected, serious news, physicians should prepare the patient and determine how the patient prefers to receive the information.
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This question is part of the following fields:
- Obstetrics
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Question 22
Correct
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Which of the following nerves passes through the inguinal canal?
Your Answer: Ilioinguinal nerve
Explanation:The contents of the inguinal canal is the ilioinguinal nerves, the round ligament of uterus in the females and the spermatic cord with its contents in males.
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This question is part of the following fields:
- Anatomy
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Question 23
Correct
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Tamoxifen is associated with an increased risk of which of the following?
Your Answer: Endometrial cancer
Explanation:Tamoxifen is an oestrogen antagonist in breast tissue but it acts as a partial oestrogen agonist on the endometrium increasing the risk of hyperplasia and has been linked to endometrial cancer. Tamoxifen improves bone density in post-menopausal women. It is an off license treatment for gynaecomastia. Reduced lactation is a potential side effect of Tamoxifen.
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This question is part of the following fields:
- Pharmacology
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Question 24
Correct
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Which of the following statements regarding Management of Beta Thalassaemia in Pregnancy is not part of the RCOG guidelines?
Your Answer: Folic acid 5 mg daily should be commenced 12 months prior to conception
Explanation:Women with Beta-Thalassaemia require significant extra input during pregnancy. Folic acid 5 mg daily should be commenced 3 months prior to conception in these patients. NOTE Women with thalassaemia who have undergone splenectomy OR have a platelet count >600 should continue or be commenced on Aspirin (75 mg/day)
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This question is part of the following fields:
- Genetics
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Question 25
Correct
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During vertex presentation, the position is determined by relationship of which part of the fetal vertex to the mother's pelvis?
Your Answer: Occiput
Explanation:A cephalic presentation is the one where head of the foetus enters the pelvic cavity at the time of delivery. The commonest form of cephalic presentation is the vertex presentation in which the occiput of the foetus enters the birth canal.
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This question is part of the following fields:
- Anatomy
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Question 26
Correct
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Which of the following leaves the pelvis via the greater sciatic foramen?
Your Answer: Pudendal Nerve
Explanation:The pudendal nerve arises from the S2-S4 nerve roots and it lies medial to the internal pudendal artery while exiting the pelvis via the greater sciatic foramen. It curves around the sacrospinous ligament and re-enters the pelvis via the lesser sciatic foramen and from there it runs medial to the ischial tuberosity over the obturator internus in the pudendal canal to the deep perineal pouch.
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This question is part of the following fields:
- Anatomy
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Question 27
Correct
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Syphilis is caused by which one of the following organisms?
Your Answer: Treponema Pallidum
Explanation:Syphilis is a sexually transmitted disease which is caused by spirochete called treponema pallidum. It can be divided into three stages. i.e. primary, secondary and tertiary syphilis.
– Primary syphilis is characterized by chancre formation at the site of sexual contact.
– Secondary syphilis ranges from maculopapular lesions to scaly lesions, inguinal lymphadenopathy, condylomata lata and split papules at the corner of mouth.
– Tertiary syphilis is the late stage of syphilis which is characterized by gummas formation and general paresis along with signs and symptoms of visceral involvement. -
This question is part of the following fields:
- Clinical Management
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Question 28
Correct
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A 26-year-old pregnant female in her first trimester was brought to the labour room with complaints of painless vaginal bleeding. On examination, her abdomen was non-tender and os was closed. Which of the following is the most likely diagnosis?
Your Answer: Threatened miscarriage
Explanation:Threatened miscarriage is a term used to describe any abnormal vaginal bleeding that occurs in first trimester, sometime associated with abdominal cramps. The cervix remains closed and the pregnancy may continue as normal.
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This question is part of the following fields:
- Obstetrics
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Question 29
Correct
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A 27-year-old pregnant elementary school teacher presented to the medical clinic because she found out that one of her students has been recently diagnosed with rubella, but the diagnosis was not confirmed by serologic tests. Upon interview, it was noted that her last rubella vaccination was when she was 12 years old.
Which of the following is considered the best management as the next step to perform?Your Answer: Check rubella serology
Explanation:Rubella infection during pregnancy may lead to miscarriage, intrauterine fetal demise, premature labour, intrauterine growth retardation, and congenital rubella syndrome. The risk of developing complications is highest if the infection is contracted within the first 12 weeks of gestation.
In those cases in which a pregnant woman has been exposed to a suspected rubella case, a specimen of blood should be tested as soon as possible for the measurement of rubella-specific IgG antibodies. If it is positive, then the woman was likely to be immune and could be reassured. If it is negative, a determination rubella-specific IgG and rubella-specific IgM antibodies should be obtained in 3 weeks to exclude an asymptomatic primary rubella infection.
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This question is part of the following fields:
- Obstetrics
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Question 30
Correct
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A 28-year -old lady in her 13th week of gestation comes to your clinic with a recent history of, four days ago, contact with a child suffering from parvovirus infection. She is concerned whether her baby might be affected.
A serum analysis for lgM and lgG antibody for parvovirus came back as negative.
Which among the following would be the most appropriate next step of management in this case?Your Answer: Repeat serologic tests in two weeks
Explanation:Parvovirus B19 is a single-stranded DNA virus, which is the causative organism for erythema infectiosum, also known as fifth disease or slapped cheek syndrome.
Maternal infection with parvovirus B19 is almost always associated with an increased risk of transplacental fetal infection throughout the pregnancy. Fetal infection results in fetal parvovirus syndrome, which is characterized by anemia hydrops with cardiac failure and possibly death.
The earlier the exposure occurs, it is more likely to result in fetal parvovirus syndrome and stillbirth is the common outcome in case of third trimester infection.Women who have been exposed to parvovirus in early pregnancy should be informed on the possible risk of fetal infection and also should be screened for parvovirus B19 specific lgG.
– If parvovirus specific lgG is positive reassure that pregnancy is not at risk
– If parvovirus specific lgG is negative, serology for lgM should be performed
After infection with parvovirus, patient’s lgM is expected to become positive within 1 to 3 weeks and it will remain high for about 8-12 weeks. lgG levels will start to rise within 2 to 4 weeks after the infection.This woman has a negative lgG titer which indicates that she is not immune to the infection. Although her lgM titer is negative now, this does not exclude the chance of infection as it takes approximately 1 to 3 weeks after infection for lgM to become positive, and will then remain high for 8 to 12 weeks. In such cases, it is recommended the serologic tests be repeated in 2 weeks when the lgM may become positive while lgG starts to rise.
– Positive lgM titers confirm maternal parvovirus infection. If that is the case, the next step would be fetal monitoring with ultrasound for development of hydrops at 1-2 weeks intervals for the next 6-12 weeks(needs referral). Once the fetus is found to have hydrops, fetal umbilical cord sampling and intrauterine blood transfusion are considered the treatment options.
– Positive lgG and negative lgM indicates maternal immunity to parvovirus.Interpretation of serologic tests results and the further actions recommended are as follows:
If both IgM and IgG are negative, it means mother is not immune to parvovirus B19 infection, and an infection is possible. Further action will be Repetition of serological tests in 2 weeks.
If IgM is positive and IgG is negative, it means the infection is established. Fetal monitoring with ultrasound at 1- to 2-week intervals for the next 6- 12 weeks must be done.
If both IgM and IgG are positive, it means infection is established, and an infection is possible. Further action will be fetal monitoring with ultrasound at 1- to 2-week intervals for the next 6- 12 weeks.
If IgM is negative and IgG is positive, it means the mother is immune to parvovirus infection. In this case it is important to reassure the mother that the baby is safe.
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This question is part of the following fields:
- Obstetrics
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