FA Pregnancy Dx

Question 1

naegele’s rule assumes:

Answer 1

normal gestation is 280 days; all patients have 28 day cycle

Question 2

naegele’s rule for EDD +/- 2 wks

Answer 2

(LMP + 1 year + 7 days) - 3 months

Question 3

nonpreg vs preg cervix

Answer 3

nonpreg: cartilage of nose; preg: lips of mouth

Question 4

hegar’s sign

Answer 4

softening of cervix

Question 5

striae gravidarum

Answer 5

abdomen, breast, thigh

Question 6

linea nigra

Answer 6

midine of abd wall

Question 7

chloasma or melasma gravidarum

Answer 7

brown patches on face and neck

Question 8

angiomas due to estrogen

Answer 8

red elevation w/branching vasc on face, neck, chest, arms

Question 9

uterus is palpable above pubic symphysis by week #?

Answer 9

12

Question 10

fernlike cervical mucus

Answer 10

not preg (estrogen–> more NaCl–> cystallization)

Question 11

beaded or cellular cervical mucus

Answer 11

preg (progesterone–> dec. NaCl)

Question 12

chadwick’s sign

Answer 12

dark blue or purple-red vaginal/cervical mucosa

Question 13

primi vs multi fetal movement timing

Answer 13

primi at 20 wks; multi at 18 wks

Question 14

hyperemesis gravidarum complications

Answer 14

wt loss, dehydration, acidosis (starvation), alkalosis (loss of HCl), hypokalemia

Question 15

anagen

Answer 15

active hair growth phase (prolonged in preg)

Question 16

quickening

Answer 16

1st fetal movements felt

Question 17

fundal ht at 36 wks vs 40 wks

Answer 17

2 cm vs 4 cm below xiphoid process (descent of fetal head)

Question 18

hCG alpha subunit is identical to that in:

Answer 18

LH, FSH, TSH

Question 19

hCG supports…

Answer 19

corpus luteum–> progesterone–> early preg

Question 20

plasma hCG levels double every:

Answer 20

2 days prior to 10 wks

Question 21

what is hCG?

Answer 21

glycoprotein made of trophoblasts

Question 22

urine/serum hCG based on antibody specificity for?

Answer 22

beta subunit

Question 23

when does placenta start making its own hormones to sustain the preg?

Answer 23

7 wks

Question 24

DDx for insufficienct hCG rise?

Answer 24

spontaneous abortion, missed abortion, ectopic preg

Question 25

test for prognosis of 1st trimester bleeding

Answer 25

serial hCGs

Question 26

when is hCG first detected?

Answer 26

6-12 days after fertilization (3-3.5 wks after LMP)

Question 27

hCG peaks at:

Answer 27

10 wks

Question 28

hCG nadirs at:

Answer 28

14-16 wks

Question 29

hCG also produced by:

Answer 29

hydatidiform mole, choriocarcinoma, germ cell tumors, breast cancers, large cell ca of lung

Question 30

gest sac visualized when hCG levels are

Answer 30

> 1500

Question 31

test to dx preg

Answer 31

urine hCG

Question 32

hCG is highest at what point in the day?

Answer 32

in the morning

Question 33

false positive preg tests with:

Answer 33

proteinuria, UTI

Question 34

FHT’s should be auscultated by:

Answer 34

10 wks

Question 35

plasma hCG used for:

Answer 35

ectopic preg, trophoblastic tumors, fetal abnormalities, serial levels for accidents

Question 36

crown-rump length predictive of gest age within 4 days up to ? Wks

Answer 36

12

Question 37

fetal cardiac motion can be seen when embryo measures:

Answer 37

> =5mm

Question 38

U/S in 1st trimester can vary by:

Answer 38

4 days

Question 39

U/S in 2nd trimester can vary by:

Answer 39

14 days

Question 40

U/S in 3rd trimester can vary by:

Answer 40

21 days