pregnancy a&p Flashcards
human chorionic gonadotropin (hCG) produced by
trophoblastic cells of developing placenta
hCG present in…
bloodurine (test-dependent, can be detected as soon as 7 days after conception)
hCG peaks
around 9-10 weeks until placenta is fully functioning (hCG levels then drop)
higher than expected hCG
multiple gestations
lower than expected hCG
sign of problematic pregnancy
morning sickness
- presumptive evidence- nausea, vomiting- begins 2-6 weeks after conception- 50% of women- more common in Western women
why bladder irritability? (as presumptive evidence)
enlarging uterus pressing on bladder- usually worse 1st trimester- 2nd trimester: bladder moves up/out of pelvis- 3rd = baby pressing on bladder
why fatigue? (as presumptive evidence)
increased hormones
Goodell sign
- probable evidence- softening of cervix
Chadwick sign
- probable evidence- cervix with bluish color
Hegar sign
- probable evidence- softening lower uterine segment (uterine isthmus)
Braxton Hicks contractions
- probable evidence- painless tightening of uterus
Ballottement
- probable evidence- passive movement of unengaged fetus- like pushing on a beach ball, bouncing around
Gravidity
pregnancy
Gravida
pregnant woman
Parity
number of pregnancies reaching 20 weeks gestation
Early term
37&0/7 weeks - 38&6/7 weeks
Term
39&0/7 weeks - 40&6/7 weeks
Late Term
41&0/7 weeks - 41&6/7
Postterm
42&0/7 weeks+
Preterm
20&0/7 weeks - 36&6/7 weeks
Abortion
miscarriage or elective termination
G_P_
Gravidity & Parity
G_T_P_A_L_
GravidityTermPretermAbortionLiving
Viability
- capacity to live outside uterus- 22 to 24 weeks OR- fetal weight > 500g (approx 1lb)
physiologic anemia
hemodilution due to plasma increase > RBC increase in pregnant woman;- decreased hgb- decreased hct
hyperplasia
increase in number of cells (formation of new tissue)
hypertrophy
enlargement of existing cells
stroke volume
volume out of left ventricle, each heart beat
cardiac output
CO = HR x SVfunctional capacity of LV to maintain BP and organ perfusion
vena caval syndrome
during pregnancy, when vena cava squashed and venous return impeded
trend: stroke volume during pregnancy
increases
trend: cardiac output during pregnancy
increases
trend: heart rate during pregnancy
increases
trend: systemic vascular resistance during pregnancy
decreases
systolic blood pressure
pressure generated by LV to push blood into aorta during contractions- remains relatively the same during pregnancy
diastolic blood pressure
pressure against arterial walls during heart relaxation- decreases slightly during pregnancy
systemic vascular resistance
resistance of blood flow through body vessels, increases when vessels constrict and decreases when vessels dilate
tidal volume
normal volume of air displaced (inspired before expiration)
operculum
- mucus plug- fills cervical canal- acts as barrier against bacterial invasion
Montgomery’s tubercles
hypertrophy of sebaceous oil glands in areola
chloasma
“mask of pregnancy”- blotchy, brown hyperpigmentation of cheeks, nose, foreheaddoesn’t always resolve D:
linea negra
pigmented line extending from fundus to symphysis pubis
striae gravidarum
stretch marks!50-90% of all preggers ladies
glycosuria during pregnancy
COMMON. increased amount of glucose filtration (exceeds reabsorption capacity); doesn’t reflect abnormal carb metab
urinary stasis
larger volume of urine held in pelvis, ureters- stagnating urine + increased glucose (pH increase) = more susceptible to UTIs
bladder irritability
looks like nocturia, urinary frequency, urgency
pytalism
excessive salivation
pruritis gravidarum
bile salts in skin causing itching
lordosis
shelf hiney in pregnancy