Fetus 2

Question 1

Uses of USG during pregnancy.

Answer 1

To diff btw Ectopic, Intrauterine and Twin pregnancy

Question 2

High freq USG provides.?

Answer 2

Better Resolution

Question 3

Low Freq USG .?

Answer 3

Better Penetration.

Question 4

ALARA principle.?

Answer 4

As Low As Reasonably Advised.

Question 5

Limit of USG freq in preg.

1) Low Preg
2) Late 1st and 2nd trimester
3) 3 rd trimester.

Answer 5

1) 5-10
2) 4-6
3) 2-5

Question 6

Routine USG which Mode.?

Answer 6

B mode.

Question 7

Which USG mode to check Cardiac activity.?

Answer 7

M mode

Question 8

Gestational Sac seen in TVS @ and TAS @

Answer 8

TVS @ 4 wks and TAS @ 5 wks.

Question 9

Yolk Sac seen in TVS @ and TAS @

Answer 9

TVS @ 5 wks

TAS @ 5.5 wks

Question 10

Cardiac activity is seen in TVS and TAS @

Answer 10

TVS @ 5-6 wks

TAS @ 6-7 wks

Question 11

1st Sign of Pregnancy on USG

Answer 11

Gestational Sac

Question 12

1st sign of IU pregnancy on USG

Answer 12

Yolk Sac.

Question 13

Most important use of USG

Answer 13

Detecting Congenital malformations.

Question 14

Blighted ovum.?

Answer 14

Mean sac diameter > 25mm and no fetal tissue or yolk sac and no cardiac activity.

Question 15

Type 1 USG can detect .?

Answer 15

Anencephaly.

Question 16

Type 2 USG aka.

Answer 16

TIFFA - Targeted imaging for fetal anomalies.

Question 17

When is TIFFA done.?

Answer 17

16-20 wks.

Question 18

best time to detect anencephaly on USG

Answer 18

14 weeks.

Question 19

Signs of anencephaly on USG

Answer 19

Frog eye sign and mickey mouse sign

Question 20

Signs of spina bifida on USG

Answer 20

Lemon sign and Banana sign.

Question 21

Lemon SIgn.

Answer 21

sign of Spina Bifida.

Frontal bone scalloping.

Question 22

Banana sign.

Answer 22

Sign of spina bifida.

Elongation and downward displacement of cerebellum.

Question 23

Ventral wall defects.

Answer 23

size of ventral wall > 7mm
continues after 12 weeks.
Omphalocele and Gastroschisis.

Question 24

Omphalocele.

Answer 24

Herniated bowel covered by sac.

Question 25

Gastroschisis.

Answer 25

Herniated bowel not covered by sac.

Question 26

Dx of placenta previa by USG.?

Answer 26

3rd trimester.

Question 27

MC presentation in anencephaly

Answer 27

Face.

Question 28

Anencephaly is more common in

Answer 28

Female fetuses

Question 29

Macrosomia and RDS more common in

Answer 29

Male fetuses.

Question 30

How to prevent NTS’s

Answer 30

Folic acid supplementation

Question 31

Folic acid supplementation prevents.?

Answer 31

NTD, Megaloblastic anemia, IUGR, Abruptio placenta.

Question 32

Prophylactic dose of folic acid is

Answer 32

400mcg / day

Question 33

Therapeutic dose of Folic acid

Answer 33

4mg / day

Question 34

Sickle cell anemia female. Dose of folic acid.?

Answer 34

5mg > 4 mg

Question 35

Dose of folic acid provided by govt of india

Answer 35

500 mcg

Question 36

RDA of folic acid in pregnant female.

Answer 36

500 mcg

Question 37

Screening test for anencephaly

Answer 37

maternal serum AFP.

Question 38

Most sensitive biochemical marker for anencephaly

Answer 38

Acetylcholine esterase

Question 39

Screening test for anencephaly to be done .?

Answer 39

16-18 wks.

Question 40

Diagnostic test for anencephaly.

Answer 40

TIFFA

Question 41

Major source for AFP

Answer 41

Fetal liver.

Question 42

Maternal serum AFP highest at

Answer 42

32 wks

Question 43

inc AFP seen in

Answer 43

NTD, Abdominal wall defect, Pilonidal sinus.

Question 44

Dec AFP seen in

Answer 44

Diabetic, GOAT,
G- Gest trophoblastic ds.
O- maternal obesity and overestimated GA
A- Abortion.
T- Trisomy 21

Question 45

Main hormone responsible for growth of fetus.

Answer 45

Insulin and insulin like GH