A&P of Pregnancy E1 Flashcards
Aspects pregnancy testing
HcG in urine/blood serum
False positives/False Negatives
Positive: Anticonvulsants + Tranquilizers
Negatives: Diuretics + Promethezine
Gravida Terminology
Number of pregnancies’
Primi-one
Nulli-none
Multi-multiple
Grandmultip >5 births
Greatgrandmultip > 10 births
GPTAL vs GPAL
G - Gravida
T - Term (37+)
P - (20-36 6/7)
A - Abortions (less than 19 6/7)
L - Living children
In GPAL the P is number of pregnancies’ carried to 20 weeks
Presumptive Signs
Amenorrhea (no period, N/V, frequent urination, breast changes, changes in abdomen, skin changes)
Probable Signs
Hegars (softening of lower uterine segment found on palpatation
Goodells (softening of cervix)
Chadwicks (violet color to vagina, cervix and vulva)
Ballottment - when fetus floats away when palpated and returns to examiners
Positive pregnancy test
Positive signs
Visualization (ultrasounds) Fetal movement or auscultation of fetal heart beat
Blood flow in the uterus
1/6 total blood volume in system
Blood in uterus is 500 ml/minute
Cord at 4 mph
What decreased blood flow
Contractions, supine positioning, low BP
Fetal quickening
Felling the fetus move
Nullipara - 18-20 wks
Multipara - 14-16 wks
Calculating due date
Nageles rule: First day of LMP count back 3 months and add 7 days
Early ultrasounds are best at determining conception periods
Cardiovascular changes in pregnancy
1st Tri BP: Same
2nd: Slight decrease
3rd: returns to prepregnancy
Blood volume: 1500 mL or 40-50% above pre preg levels
Red blood cell mass increases by 17%
Respiratory Changes
Oxygen requirements increase (15-20%)
Estrogen relaxed the ligaments of ribcage (increases chest expansion)
The RR should stay unchanged or raise slightly
MSK Changes
Relaxed joints, change in posture, pain/soreness, altered center of gravity
Bowels
Slowed peristalsis, abdominal distention, flatulence (farts) constipation (r/t iron supplements)
Hemorrhoids r/t straining, constipation, pressure in pelvis