Maternal Physiology Flashcards
Uterus
Week 12
Abdominal organ
Dextrorotation
Isthmus enlargement and thinning
Softening and compressibility of the isthmus occurring on the 6th to 8th w AOG
Hegar’s sign
Softening of cervix pronounced on 6th to 8th wk AOG
Goodell’s sign
Poor pap smear quality during pregnancy
Arias Stella reaction
Bluish or purplish discoloration of vagina at 6 w AOG
Chadwick’s sign
Cervical mucous changes
Vaginal secretion changes
Crystallization or beading
Acidic
T or F
Montgomery glands of the breast increase in size starting the 3rd month of pregnancy
2nd
Melanocyte Stimulating Hormone effects
Linea nigra
Darkening of the areola
Chloasma or melasma
Hyperestrogenemia
Spider nevi
Palmar erythema
Corticosteroids
Striae gravidarum at breast and abdomen
Water metabolism
Inc water retention
Fall in plasma osmolality
Protein metabolism
+500g fetus and placenta
+500g uterus breast blood
CHO metabolism
Periph insulin resistance
Mild fasting hypoglycemia
Postprandial hyperglycemia
Resets lipostat in hypothalamus causing hyperlipidemia
Progesterone
Na and K
Ca and Mg
Fe
Inc: Enhanced tubular reabsorption of Na and K
Dec: Total calcium levels decline but ionized ca is unchanged
100 mg requirement