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  • Question 1 - A 25-year-old pregnant female suddenly developed a rash on her torso. It started...

    Incorrect

    • A 25-year-old pregnant female suddenly developed a rash on her torso. It started as macules and then became vesicles. After 3 days she died. During her post-mortem, positive findings suggestive of pneumonitis were found. Which one of the following is the most common cause?

      Your Answer: Rubella

      Correct Answer: Varicella zoster virus (VZV)

      Explanation:

      The most likely cause of the rash and subsequent death in this pregnant female is Varicella zoster virus (VZV) infection. VZV is the virus responsible for causing chickenpox and shingles. In pregnant women, VZV infection can lead to severe complications, including pneumonitis, which is inflammation of the lungs.

      The presentation of macules (flat, red spots) that progress to vesicles (fluid-filled blisters) is characteristic of VZV infection. The virus can spread throughout the body, leading to systemic symptoms and potentially fatal complications.

      Chorioamnionitis is an infection of the placental tissues and amniotic fluid, which can occur during pregnancy but would not typically present with a rash and vesicles. Herpes simplex virus can also cause vesicular rash, but it is less common in pregnant women and does not typically lead to pneumonitis. Listeriosis and rubella are other infections that can cause rash, but they are less likely to present with the specific progression of macules to vesicles seen in this case.

      Overall, given the clinical presentation and findings during the post-mortem examination, Varicella zoster virus (VZV) is the most likely cause of the rash and subsequent complications in this pregnant female.

    • This question is part of the following fields:

      • Microbiology
      36.9
      Seconds
  • Question 2 - What is not included in the clinical assessment of a client on ART?...

    Incorrect

    • What is not included in the clinical assessment of a client on ART?

      Your Answer: Liver function tests

      Correct Answer: Waist circumference

      Explanation:

      The clinical assessment of a client on antiretroviral therapy (ART) is crucial in monitoring their progress and ensuring the effectiveness of their treatment. Weight and height, not waist circumference measurements are important indicators of overall health and can help healthcare providers track changes in body composition and nutritional status. Tuberculosis screening is essential as HIV-positive individuals are at a higher risk of developing tuberculosis. CD4 count testing is used to assess the immune system’s strength and response to treatment. Viral load testing measures the amount of HIV in the blood and helps determine how well the treatment is working. Liver function tests are important as some antiretroviral medications can affect liver function. Overall, a comprehensive clinical assessment including these components is essential in managing HIV/AIDS and ensuring the well-being of individuals on ART.

    • This question is part of the following fields:

      • Clinical Evaluation
      6.5
      Seconds
  • Question 3 - Which organ systems can HIV directly damage besides the immune system? ...

    Incorrect

    • Which organ systems can HIV directly damage besides the immune system?

      Your Answer: Brain and kidneys only

      Correct Answer: Brain, kidneys, heart, and gonads

      Explanation:

      HIV, or human immunodeficiency virus, primarily targets and damages the immune system by attacking CD4 cells, which are crucial for fighting off infections. However, HIV can also directly damage other organ systems in the body.

      The brain can be affected by HIV through various neurological complications, such as HIV-associated neurocognitive disorders (HAND) which can lead to cognitive impairment and dementia. The kidneys can also be damaged by HIV, leading to conditions like HIV-associated nephropathy (HIVAN) which can result in kidney failure.

      Additionally, HIV can directly damage the heart, leading to cardiomyopathy which is a condition where the heart muscle becomes weakened and cannot pump blood effectively. Lastly, HIV can also affect the gonads, leading to issues with fertility and hormone production.

      Therefore, the correct answer is: Brain, kidneys, heart, and gonads.

    • This question is part of the following fields:

      • Pathology
      23
      Seconds
  • Question 4 - Which of the following statements are true regarding human herpesvirus eight ...

    Correct

    • Which of the following statements are true regarding human herpesvirus eight

      Your Answer: It is sexually transmitted.

      Explanation:

      Human herpesvirus eight, also known as Kaposi’s sarcoma-associated herpesvirus (KSHV), is indeed sexually transmitted. This virus is associated with the development of Kaposi’s sarcoma, a cancer commonly occurring in AIDS patients, as well as other conditions such as primary effusion lymphoma and multicentric Castleman’s disease. Antibodies to HHV-8 are found in more than 50% of the general population, indicating widespread exposure to the virus. However, it is not associated with Burkitt’s lymphoma or myeloproliferative disorders. Therefore, the true statements regarding human herpesvirus eight are:
      – It is sexually transmitted.
      – Antibodies are found in more than 50% of the general population.

    • This question is part of the following fields:

      • Pathology
      26.6
      Seconds
  • Question 5 - As of 2021, approximately what percentage of people living with HIV knew their...

    Incorrect

    • As of 2021, approximately what percentage of people living with HIV knew their HIV status?

      Your Answer: 95%

      Correct Answer: 85%

      Explanation:

      Among people living with HIV in 2021, approximately 85% knew their HIV status according to WHO estimates.

    • This question is part of the following fields:

      • Epidemiology
      5.9
      Seconds
  • Question 6 - Which of the following is the most common route of hepatitis B transmission...

    Correct

    • Which of the following is the most common route of hepatitis B transmission worldwide?

      Your Answer: Perinatal transmission

      Explanation:

      Hepatitis B is a viral infection that can be transmitted through exposure to infectious blood or body fluids. Perinatal transmission, which occurs around the time of birth or through contact with infected blood during childhood, is the most common route of transmission worldwide. In areas where hepatitis B is common, the virus is often passed from mother to child during childbirth, with a 20% risk of transmission if the mother is positive for HBsAg. This risk increases to 90% if the mother is also positive for HBeAg. In areas where hepatitis B is rare, intravenous drug use and sexual intercourse are more common routes of transmission. Overall, perinatal transmission is the most common route of hepatitis B transmission globally.

    • This question is part of the following fields:

      • Epidemiology
      3.5
      Seconds
  • Question 7 - An elderly man presents with complaints of a chronic cough with haemoptysis and...

    Correct

    • An elderly man presents with complaints of a chronic cough with haemoptysis and night sweats on a few nights per week for the past four months. He is known to smoke 12 cigarettes per day and he had previously undergone treatment for Tuberculosis seven years ago.

      His blood pressure was found to be 143/96 mmHg and he is mildly pyrexial 37.5°C. Evidence of consolidation affecting the right upper lobe was also found.

      Investigations;
       
      Hb 11.9 g/dl
      WCC 11.1 x109/l
      PLT 190 x109/l
      Na+ 138 mmol/l
      K+ 4.8 mmol/l
      Creatinine 105 μmol/l
      CXR Right upper lobe cavitating lesion
      Aspergillus precipitins positive

      Which of the following is most likely the diagnosis?

      Your Answer: Aspergilloma

      Explanation:

      This question presents a case of an elderly man with a chronic cough, haemoptysis, night sweats, and a history of smoking and previous tuberculosis treatment. The patient also has evidence of consolidation in the right upper lobe on chest X-ray and positive Aspergillus precipitins.

      The most likely diagnosis in this case is aspergilloma. Aspergilloma is a fungus ball that develops in a pre-existing cavity in the lung parenchyma. It is commonly seen in patients with pre-existing cavitary lung diseases such as tuberculosis. Symptoms of aspergilloma may include cough, haemoptysis, and fever. The presence of positive Aspergillus precipitins further supports the diagnosis.

      The other options provided in the question are less likely based on the clinical presentation and investigations. Allergic bronchopulmonary aspergillosis typically presents with asthma-like symptoms and eosinophilia. Invasive aspergillosis is a severe infection that occurs in immunocompromised individuals. Reactivated tuberculosis would typically present with symptoms similar to the initial infection. Lung cancer would have a different presentation on imaging and would not be associated with positive Aspergillus precipitins.

    • This question is part of the following fields:

      • Microbiology
      19.2
      Seconds
  • Question 8 - What is the International goal for ending the AIDS epidemic by the World...

    Correct

    • What is the International goal for ending the AIDS epidemic by the World Health Organization (WHO)?

      Your Answer: By 2030

      Explanation:

      The World Health Organization (WHO) has set a goal to end the AIDS epidemic by 2030 through its Fast-Track strategy. This strategy involves accelerating the scale-up of HIV prevention, treatment, and care services in order to reach key targets by 2020 and ultimately end the epidemic by 2030. This includes increasing access to HIV testing and treatment, reducing new HIV infections, and eliminating AIDS-related deaths. By focusing on key populations most affected by HIV, such as men who have sex with men, sex workers, people who inject drugs, and transgender individuals, the WHO aims to achieve these targets and ultimately end the AIDS epidemic by 2030.

    • This question is part of the following fields:

      • Epidemiology
      6.1
      Seconds
  • Question 9 - A 10-week-old infant is seen in the clinic to start antiretroviral therapy. Due...

    Incorrect

    • A 10-week-old infant is seen in the clinic to start antiretroviral therapy. Due to unknown maternal HIV status and a precipitous delivery, the mother did not receive any intrapartum antiretroviral medications for the prevention of mother-to-child HIV transmission. In the postpartum period, the infant took a 3-drug antiretroviral postexposure prophylaxis regimen for 6 weeks. An HIV DNA PCR was positive at birth, negative at 2 weeks and 5 weeks (while receiving antiretroviral therapy), but positive at 8 and 9 weeks of age. Additional laboratory studies show an HIV RNA level of 92,305 copies/mL and a CD4 count of 1,034 cells/mm3. The infant weighs 4.9 kg. A baseline HLA B*5701 test is negative.
      According to the Pediatric ART Guidelines, which one of the following is considered a preferred initial antiretroviral regimen for this 10-week-old infant?

      Your Answer: Abacavir plus lamivudine plus dolutegravir

      Correct Answer:

      Explanation:

      In this case, the 10-week-old infant is starting antiretroviral therapy after being diagnosed with HIV. According to the Pediatric ART Guidelines, the preferred initial antiretroviral regimen for infants and children older than 1 month but younger than 2 years of age who weigh at least 3 kg is two nucleoside reverse transcriptase inhibitors (NRTIs) plus dolutegravir.

      The recommended 2-NRTI backbone for this age group is abacavir plus either lamivudine or emtricitabine. Therefore, the preferred initial antiretroviral regimen for this 10-week-old infant would be Abacavir plus lamivudine plus dolutegravir.

      It is important to follow the guidelines for pediatric antiretroviral therapy to ensure optimal treatment outcomes and minimize the risk of drug resistance.

    • This question is part of the following fields:

      • Pharmacology
      67.9
      Seconds
  • Question 10 - A 33-year-old former intravenous (iv) drug abuser presents to outpatient clinic with abnormal...

    Incorrect

    • A 33-year-old former intravenous (iv) drug abuser presents to outpatient clinic with abnormal liver function tests (LFTs) at the recommendation of his general practitioner. Although he is not experiencing any symptoms, a physical examination reveals hepatomegaly measuring 4 cm. Further blood tests confirm that he is positive for hepatitis C, with a significantly elevated viral load of hepatitis C RNA. What would be the most crucial investigation to determine the appropriate management of his hepatitis C?

      Your Answer: Human immunodeficiency virus (HIV) test

      Correct Answer: Hepatitis C genotype

      Explanation:

      Hepatitis C Management and Testing

      Hepatitis C is a viral infection that can be acquired through blood or sexual contact, including shared needles during intravenous drug use and contaminated blood products. While some patients may be asymptomatic, the virus can cause progressive damage to the liver and may lead to liver failure requiring transplantation if left untreated.

      Before starting treatment for chronic hepatitis C, it is important to determine the patient’s hepatitis C genotype, as this guides the length and type of treatment and predicts the likelihood of response. Dual therapy with interferon α and ribavirin is traditionally the most effective treatment, but newer oral medications like sofosbuvir, boceprevir, and telaprevir are now used in combination with PEG-interferon and ribavirin for genotype 1 hepatitis C.

      Screening for HIV is also important, as HIV infection often coexists with hepatitis C, but the result does not influence hepatitis C management. An ultrasound of the abdomen can determine the structure of the liver and the presence of cirrhosis, but it does not alter hepatitis C management. A chest X-ray is not necessary in this patient, and ongoing intravenous drug use does not affect hepatitis C management.

      Overall, proper testing and management of hepatitis C can prevent further liver damage and improve patient outcomes.

    • This question is part of the following fields:

      • Clinical Evaluation
      44
      Seconds
  • Question 11 - What is the recommended approach if a client exhibits signs of lipoatrophy while...

    Incorrect

    • What is the recommended approach if a client exhibits signs of lipoatrophy while on ART?

      Your Answer: Switch to an integrase inhibitor-based regimen

      Correct Answer: Substitution of the offending agent with an alternative drug

      Explanation:

      Lipoatrophy is a condition characterized by the loss of subcutaneous fat, which can be a side effect of certain antiretroviral therapy (ART) medications. When a client exhibits signs of lipoatrophy while on ART, it is important to address this issue promptly to prevent further deterioration of body composition.

      Increasing the dosage of current ART medications or adding a lipid-lowering agent to the regimen may not effectively address the underlying cause of lipoatrophy. Switching to an integrase inhibitor-based regimen may be a viable option, as some studies have shown that these medications are less likely to cause lipoatrophy compared to other classes of ART drugs.

      However, the most recommended approach is to discontinue the offending agent that is causing lipoatrophy and substitute it with an alternative drug that is less likely to cause this side effect. This approach can help improve the client’s body composition and overall quality of life while still effectively managing their HIV infection.

      In conclusion, it is important for healthcare providers to closely monitor clients on ART for signs of lipoatrophy and take appropriate action to address this issue. Substituting the offending agent with an alternative drug is the recommended approach to mitigate further adverse effects on body composition.

    • This question is part of the following fields:

      • Pharmacology
      25.1
      Seconds
  • Question 12 - Which ARV drug may cause hepatotoxicity, particularly in patients with concurrent liver disease?...

    Incorrect

    • Which ARV drug may cause hepatotoxicity, particularly in patients with concurrent liver disease?

      Your Answer: Nevirapine (NVP)

      Correct Answer: Ritonavir (RTV)

      Explanation:

      Hepatotoxicity refers to liver damage caused by certain medications, including antiretroviral drugs used to treat HIV. Ritonavir (RTV) is known to have the potential to cause hepatotoxicity, especially when used as a booster for other protease inhibitors. This risk is increased in patients with pre-existing liver disease, as their liver function may already be compromised.

      Tenofovir disoproxil fumarate (TDF), nevirapine (NVP), and abacavir (ABC) are other ARV drugs that can also cause hepatotoxicity, but RTV is particularly associated with this side effect. Dolutegravir (DTG) is not typically known to cause hepatotoxicity.

      Patients taking RTV, especially those with liver disease, should be closely monitored for signs of liver damage, such as elevated liver enzymes. If hepatotoxicity is suspected, the healthcare provider may need to adjust the treatment regimen or consider alternative medications to minimize the risk of further liver damage.

    • This question is part of the following fields:

      • Pharmacology
      14.9
      Seconds
  • Question 13 - What should be done if a child under two years tests HIV-positive? ...

    Incorrect

    • What should be done if a child under two years tests HIV-positive?

      Your Answer: Confirm the HIV diagnosis with a rapid test

      Correct Answer: Initiate ART as soon as possible

      Explanation:

      Children under two years of age are at a higher risk of rapid disease progression if they are HIV-positive. Therefore, it is crucial to initiate antiretroviral therapy (ART) as soon as possible to prevent further complications and improve the child’s health outcomes. Waiting for confirmatory results before starting treatment can delay necessary care and potentially worsen the child’s condition. Additionally, providing cotrimoxazole prophylaxis can help prevent opportunistic infections in HIV-positive children. Confirming the HIV diagnosis with a rapid test can help ensure accurate results and guide appropriate treatment decisions. Overall, the priority should be to initiate ART promptly to give the child the best chance at a healthy life.

    • This question is part of the following fields:

      • Clinical Evaluation
      32.3
      Seconds
  • Question 14 - In which one of the following diseases does the patient have to be...

    Correct

    • In which one of the following diseases does the patient have to be isolated?

      Your Answer: Measles

      Explanation:

      In the case of measles, the patient needs to be isolated because the disease is highly contagious and spreads through respiratory droplets. Isolation helps prevent the spread of the virus to others.

      Glomerulonephritis (GN) – post streptococcal, Henoch-Schönlein purpura (HSP), Herpetic gingivostomatitis, and Rheumatic fever do not require isolation because they are not spread through respiratory droplets or direct contact. These diseases are not contagious in the same way as measles and chickenpox.

    • This question is part of the following fields:

      • Microbiology
      6.1
      Seconds
  • Question 15 - A 25-year-old sexually active man comes to the clinic complaining of a rash...

    Correct

    • A 25-year-old sexually active man comes to the clinic complaining of a rash that has been present all over his body for the past two weeks. He also reports having a painless sore on his penis a few weeks prior to the onset of the rash. Upon examination, a maculopapular rash is observed on his entire body, including the palms of his hands and soles of his feet. However, his penis appears normal. What is the most probable diagnosis?

      Your Answer: Secondary syphilis

      Explanation:

      Syphilis and its Symptoms

      Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum. The disease is transmitted through intimate contact with an infected person. The primary symptom of syphilis is a painless ulcer called a chancre, which may not be reported by the patient. The secondary stage of syphilis is characterized by a maculopapular rash that affects the entire body, including the palms and soles. This rash is known as keratoderma blennorrhagica.

      It is important to note that HIV seroconversion illness may also present with a rash, but it typically does not affect the palms and soles. Additionally, constitutional symptoms such as fever and malaise are common with HIV seroconversion illness. None of the other conditions typically present with a rash.

      Treatment for secondary syphilis involves the use of long-acting penicillin.

    • This question is part of the following fields:

      • Microbiology
      14.4
      Seconds
  • Question 16 - What is the primary reason for deferring antiretroviral therapy (ART) initiation for two...

    Correct

    • What is the primary reason for deferring antiretroviral therapy (ART) initiation for two weeks in asymptomatic clients with a negative lumbar puncture for cryptococcal meningitis?

      Your Answer: To optimize the effectiveness of antifungal treatment

      Explanation:

      ART initiation is deferred by two weeks in asymptomatic clients with a negative lumbar puncture for cryptococcal meningitis to optimize the effectiveness of antifungal treatment.

    • This question is part of the following fields:

      • Clinical Evaluation
      8.1
      Seconds
  • Question 17 - A 26-year-old sexually active female visits her GP with complaints of genital itching...

    Correct

    • A 26-year-old sexually active female visits her GP with complaints of genital itching and a white discharge. During examination, vulvar erythema and a white vaginal discharge are observed. The vaginal pH is measured at 4.25. What is the probable reason for this woman's symptoms?

      Your Answer: Candida albicans

      Explanation:

      A high vaginal swab is not necessary for diagnosing vaginal candidiasis if the symptoms strongly suggest its presence. Symptoms such as genital itching and white discharge are indicative of Candida albicans infection. The discharge appears like cottage cheese and causes inflammation and itching, but the vaginal pH remains normal (around 4.0-4.5 in women of reproductive age). Since vaginal candidiasis is a common condition, a confident clinical suspicion based on the examination can be enough to diagnose and initiate treatment.

      The other options for diagnosis are incorrect. Gardnerella vaginalis is a normal part of the vaginal flora, but it’s overgrowth can lead to bacterial vaginosis. Unlike vaginal candidiasis, bacterial vaginosis presents with thinner white discharge and a fishy odor that intensifies with the addition of potassium hydroxide. Additionally, the vaginal pH would be elevated (> 4.5).

      Vaginal candidiasis, also known as thrush, is a common condition that many women can diagnose and treat themselves. Candida albicans is responsible for about 80% of cases, while other candida species cause the remaining 20%. Although most women have no predisposing factors, certain factors such as diabetes mellitus, antibiotics, steroids, pregnancy, and HIV can increase the likelihood of developing vaginal candidiasis. Symptoms include non-offensive discharge resembling cottage cheese, vulvitis, itching, vulvar erythema, fissuring, and satellite lesions. A high vaginal swab is not routinely indicated if the clinical features are consistent with candidiasis. Treatment options include local or oral therapy, with oral fluconazole 150 mg as a single dose being the first-line treatment according to NICE Clinical Knowledge Summaries. If there are vulval symptoms, a topical imidazole may be added to an oral or intravaginal antifungal. Pregnant women should only use local treatments. Recurrent vaginal candidiasis is defined as four or more episodes per year by BASHH. Compliance with previous treatment should be checked, and a high vaginal swab for microscopy and culture should be performed to confirm the diagnosis. A blood glucose test may be necessary to exclude diabetes, and differential diagnoses such as lichen sclerosus should be ruled out. An induction-maintenance regime involving oral fluconazole may be considered. Induction involves taking oral fluconazole every three days for three doses, while maintenance involves taking oral fluconazole weekly for six months.

    • This question is part of the following fields:

      • Microbiology
      8.8
      Seconds
  • Question 18 - In which stage of syphilis does neurosyphilis most commonly occur? ...

    Incorrect

    • In which stage of syphilis does neurosyphilis most commonly occur?

      Your Answer: Late syphilis

      Correct Answer: Tertiary syphilis

      Explanation:

      Neurosyphilis is a complication of syphilis that occurs when the bacterium Treponema pallidum infects the central nervous system. This can lead to a variety of neurological symptoms, including headaches, confusion, memory problems, and even paralysis.

      Neurosyphilis most commonly occurs during the tertiary stage of syphilis, which is the most advanced stage of the disease. During this stage, the infection has spread throughout the body and can affect multiple organ systems, including the central nervous system.

      It is important to note that neurosyphilis can also occur in earlier stages of syphilis, but it is most commonly seen in the tertiary stage. This is why it is crucial for individuals with syphilis to seek prompt treatment to prevent the progression of the disease to more severe stages, including neurosyphilis.

    • This question is part of the following fields:

      • Microbiology
      10.3
      Seconds
  • Question 19 - What is the recommended treatment for severe recurrent esophageal candidiasis? ...

    Correct

    • What is the recommended treatment for severe recurrent esophageal candidiasis?

      Your Answer: Four-week course of fluconazole

      Explanation:

      Severe recurrent esophageal candidiasis is a condition where the yeast Candida overgrowth in the esophagus causes persistent and severe symptoms. The recommended treatment for this condition is a four-week course of fluconazole. Fluconazole is an antifungal medication that is effective in treating Candida infections, including esophageal candidiasis.

      Itraconazole and fluconazole can be used interchangeably for treating esophageal candidiasis, but fluconazole is preferred for severe cases. Amphotericin B may be used for a two-week course in cases where fluconazole is not effective or tolerated. Posaconazole may also be considered as a first-line treatment for severe cases.

      Surgery is not typically recommended for esophageal candidiasis unless there are complications or other underlying conditions that require surgical intervention. Overall, a four-week course of fluconazole is the preferred treatment for severe recurrent esophageal candidiasis.

    • This question is part of the following fields:

      • Pharmacology
      13
      Seconds
  • Question 20 - A 31-year-old homosexual male is complaining of recent weight loss and blurred vision....

    Correct

    • A 31-year-old homosexual male is complaining of recent weight loss and blurred vision. A fundoscope was performed showing retinal haemorrhage. What is the single most appropriate option?

      Your Answer: Cytomegalovirus (CMV)

      Explanation:

      This question presents a 31-year-old homosexual male with symptoms of weight loss and blurred vision, along with retinal hemorrhage seen on fundoscopy. The most likely cause of these symptoms in a patient with HIV is Cytomegalovirus (CMV) infection.

      CMV is a common opportunistic infection in individuals with HIV, particularly those with low CD4 counts. It can cause retinitis, leading to retinal hemorrhage and blurred vision. Weight loss is also a common symptom of HIV infection, which can be exacerbated by opportunistic infections like CMV.

      The other options listed (Mycobacterium avium, Haemophilus influenzae, NHL, and Pneumocystis jiroveci) are also opportunistic infections commonly seen in HIV patients, but CMV is the most likely cause in this case based on the symptoms provided. Therefore, the single most appropriate option is Cytomegalovirus (CMV).

    • This question is part of the following fields:

      • Microbiology
      7.4
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Microbiology (5/7) 71%
Clinical Evaluation (1/4) 25%
Pathology (1/2) 50%
Epidemiology (2/3) 67%
Pharmacology (1/4) 25%
Passmed