Flashcards in Antenatal screening Deck (15):
What blood tests are taken at 8 - 12 weeks gestation? (This will usually be the booking visit)
Blood borne viruses (rubella, syphillis, HIV, Hepatitis)
What examinations are done at the booking visit?
At what gestation is the nuchal thickness test done?
11 - 13+6 weeks
What gestation is a blood sample looking for HCG and AFP in the screening of down syndrome done?
15 - 20 weeks
You do a blood test for HCG and AFP at 16 weeks. What results would be suggestive of down syndrome?
High HCG and low AFP
You do a blood test for HCG and AFP at 16 weeks. The results show a high HCG and a low AFP. What might this signify?
You do a blood test for HCG and AFP at 16 weeks. Where is AFP made?
You do a blood test for HCG and AFP at 16 weeks. The results show a high AFP and a low HCG What might this signify?
Neural tube defects such as spina bifida
What level of risk for down syndrome would require further investigation?
At what gestation can amniocentesis be performed?
After 15 weeks
What is the miscarriage rate in amniocentesis?
At what gestation can chorionic villus sampling be performed?
After 12 weeks
What is the miscarriage rate in chorionic villus sampling?
What tests are part of the downs syndrome screening done at 11 - 14 weeks?