2nd half cont

Question 1

purpose of chorionic villus sampling is to assess

Answer 1

fetal karyotype

Question 2

chorionic villus sampling performed week ____-____

Answer 2

10-13

Question 3

when is transcervical chorionic villus sampling done

Answer 3

posterior and low placenta

Question 4

when is transabdo chorionic villus sampling done

Answer 4

fundal and anterior placentas

Question 5

before either trans abdo or trans vag

Answer 5

pre scan US is done

Question 6

transcervical chorionic villus sampling done using _____Fr cannula

Answer 6

5.7 Fr

Question 7

for chorionic villus sampling ____mg sample is required

Answer 7

15 mg

Question 8

transabdo ____ or ____ gauge needle is used for chorionic villus sampling

Answer 8

18- 20

Question 9

what has higher miscarriage rate, CVS or amniocentesis

Answer 9

CVS

Question 10

miscarriage rate are higher if test is done

Answer 10

through cervix which

Question 11

which test is done earlier amniocentesis or CVS

Answer 11

CVS ( 10-13 vs 15)

Question 12

how much fluid is withdrawn with amniocentesis

Answer 12

less than one ounce

Question 13

when is optimal time for amniocentesis

Answer 13

15-20 weeks

Question 14

bladder full or empty >20 weeks for amniocentesis

Answer 14

empty

Question 15

bladder full or empty <20 weeks for amniocentesis

Answer 15

full

Question 16

size of amniocentesis needle

Answer 16

22 gauge, 3.5 inch