-
Question 1
Correct
-
You see a patient in antenatal clinic who is concerned that she has never had chicken pox and may catch it during pregnancy. You check her Varicella status and she is non-immune. She asks you about vaccination. What type of vaccine is the varicella vaccine?
Your Answer: Attenuated
Explanation:Varicella is a live vaccine. The recent RCOG green top guidelines suggest vaccine can be considered postpartum or pre pregnancy but NOT whilst pregnant. In the non-immune pregnant woman they should be advised to avoid contact with people with chickenpox or shingles and to contact a healthcare professional promptly if exposed. If they have a significant exposure VZIG should be offered as soon as possible.
-
This question is part of the following fields:
- Immunology
-
-
Question 2
Correct
-
Which immunoglobulin provides passive immunity to the neonate?
Your Answer: IgG
Explanation:Passive immunity to the neonate is provided by immunoglobulin G (IgG) since it can be transferred through the placenta from mother to the foetus.
IgA is transferred from mothers to offspring through breast milk.
IgM molecular structure is too big to be filtered through the placental vasculature to the foetus. IgM is the first Ig to be synthesised by the neonate -
This question is part of the following fields:
- Immunology
-
-
Question 3
Correct
-
Which Immunoglobulin (or antibody) is secreted in large amounts in breast milk?
Your Answer: IgA
Explanation:When considering immunoglobulins in neonates. There are only a few key points you are likely to be tested on. 1. IgA is resistant to stomach acid and found in large amounts in breast milk. 2. IgG is the only Ig that can cross the placenta so is key for passive neonatal immunity 3. When the neonate starts synthesising its own Ig it is IgM that is produced first.
-
This question is part of the following fields:
- Immunology
-
-
Question 4
Correct
-
Which of the following will require Anti-D administration post partum?
Your Answer: Rhesus negative mother, non-sensitised, fetal cord blood Rh positive
Explanation:Rhesus positive mothers should not get anti-D. They have Rhesus antigens and the anti-D would result in maternal blood being bound and removed from her circulation. The danger is to children born to mothers who are rhesus negative. As the mother may develop antibodies against Rhesus positive fetal blood. Therefore if the baby is Rhesus negative then there is no risk of alloimmunisation (sensitisation)
-
This question is part of the following fields:
- Immunology
-
-
Question 5
Correct
-
Question 6
Correct
-
Question 7
Correct
-
Macrophages are derived from what type of white blood cell?
Your Answer: Monocytes
Explanation:Macrophages are derived from monocytes. When monocytes come across a pathogen they differentiate into macrophages for phagocytosis to occur.
-
This question is part of the following fields:
- Immunology
-
-
Question 8
Correct
-
Question 9
Correct
-
Question 10
Incorrect
00
Correct
00
Incorrect
00
:
00
:
00
Session Time
00
:
00
Average Question Time (
Secs)