Obstetrics Flashcards
(28 cards)
Gravidity
Number of times a woman has been pregnant.
Parity
Number of pregnancies that led to a birth beyond 20 weeks’ gestational age or an infant weighing more than 500g.
TPAL
Number of Term delivery, Preterm delivery, Abortuses, Living children
Developmental age(DA)
Times since fertilization: usually unknown
Gestational age (GA)
The number of weeks and days measure from the first day of LMP
GA determined by Fundal height
Umbilicus_ 20 weeks + 1 cm/weeks
GA determined by Fetal heart tones (Doppler): Typically
10-12 weeks
GA determined by Quickening or appreciation of fetal movement: Occurs ar
17-18 weeks at the earliest
measures fetal crown-rump length(CRL) at? by U/S
6-12 weeks
measures biparietal diameter(BPD), femur length(FL), abdominal circumference(AC) from? by U/S
13 weeks
Ultrasound measurement of GA is most reliability during
1st trimester
b-hCG for Dx pregnancy can be detected in
serum, urine
??hCG is more sensitive and preferred if the menstrual period is less than 1 week.
Serum hCG
hCG produces by…. ; peaks at … mIU/mL by … weeks ‘GA
placenta, 100,000 , 10 weeks’GA
b-hCG status in second and third trimester
decrease, levels off
In … pregnancy hCG levels double approximately every …hr
early, 48 hr
If 48 hr b-hCG increase or decrease abnormally by less than 66%, the next thing to do is?
Repeat transvaginal ultrasound scan
Gestational sac is visible on transvaginal ultrasonography at … GA, b-hCG in the range of …mIU/ml
5 weeks GA, 1000-1,500
The third trimester commonly has… symptom…caused by increase pressure from the uterus and laxity of muscles and joints.
Low back pain
Maternal failure to gain appropriate weight is associate with
Intrauterine growth restriction (IUGR)
Maternal excess weight gain is associate with
diabetes
Pregnancy cause … in coagulation
hypercoagulable state
Pregnancy average increase in body weight average… kg
11 kg
uterine weight increase from … to … during pregnancy
60-70 g —> 900-1,200 g
