PRG PHYS Flashcards
(29 cards)
What is the average weight and volume of the uterus during pregnancy
5L, 1100g
Enlargment of the uterus is due to (2)
stretching
hypertrophy of myocytes
AOG when pregnant uterus becomes intraabdominal organ
12 wks
Uteroplacental blood flow near term
450-600ml/minute
Maximum function of corpus luteum
6-7 weeks AOG
stretch marks
striae gravidarum
hyperpigmentation of midline abdominal skin
linea nigra
mask of pregnancy
chloasma or melasma gravidarum
hypertrophic sebaceous glands in breast
Glands of montgomery
Metabolic changes: average wt. gain
12.5 kg or 27.5 lbs
Metabolic changes:BMR by 3rd trimester is ___% higher
10-20% higher
True of carbohydrate metabolism during pregnancy EXCEPT
a. mild fasting hypoglycemia
b. postprandial hyperglycemia
c. hyperinsulinemia
d. insulin resistance
A; mild fasting hyperglycemia
True about hematologic changes of pregnancy EXCEPT
a. hgb and hct decrease
b. blood viscosity increase
c. hypervolemia of pregnancy is 40-45% above non-pregnant vol after 32-34 weeks
e. NOTA
B; decrease
Purpose of hypervolemia of pregnancy(4)
VNDL
V - Venous return, impaired, need protection
N - Nutrients, to provide for fetus and placenta
D - Demands, to meet, that of enlarging uterus and hypertrophied vascular system
L - Safeguard against the effects of blood loss
True about cardiovascular system changes during pregnancy
a. increased cardiac output
b. reduced systemic vascular resistance
c. increased heart rate
d. exaggerated splitting of S1
e. Loud easily audible 3rd heart sound
AOTA
Normal heart sounds findings during pregnancy (3)
exaggerated splitting of the 1st heart sound
No definite aortic or pulmonary elements in 2nd heart sound
Loud, easily audible 3rd sound
Murmur of pregnancy
systolic murmur in 90%, intensified during inspiration
Diaphragm rises by __cm during pregnancy
4
Respiratory rate, lung compliance, max breathing capacity, forced time vital capacity
a. increase
b. decrease
c. unchanged
C
Tidal volume and resting minute ventilation
a. increase
b. decrease
c. unchanged
A
Functional residual capacity and residual volume
a. increase
b. decrease
c. unchanged
A
Materna’ arteriovenous oxygen
a. increase
b. decrease
c. unchanged
B
Tidal volume, oxygen delivery, total hgb mass, oxygen capacity, cardiac output
a. increase
b. decrease
c. unchanged
A
kidney size
a. increase
b. decrease
c. unchanged
A
