Antepartal Tests

Question 1

what is the main reason for ultrasound in the first trimester

Answer 1

to determine age. fetal size is fairly consistent during the first trimester.

Question 2

how does alpha fetoprotein work

Answer 2

if a baby has a NTD, AFP will leak out and be absorbed into the blood stream causing levels to be high.

Question 3

what is normal fetal movement

Answer 3

10 in 2 hours

Question 4

what is the difference between amniocentesis and chorionic villi sampling

Answer 4

you can do CVS at 12 weeks and for amniocentesis you gotta wait until 16 weeks

Question 5

what is the quadruple marker test

Answer 5

tests alpha-fetoprotein, estradiol, human chorionic gonadotropin

Question 6

what happens if the quad markers are positive

Answer 6

refer for amniocentesis or CVS

Question 7

Patient teaching post amniocentesis

Answer 7

report uterine cramping ASAP (it can cause preterm labor)

Question 8

lecithin/sphingomyelin (L/S ratio)

Answer 8

measure how mature fetus lungs are. (2:1 = mature)