conception
the fertilization of an ovum (egg) by a spermatozoon (sperm) to form a viable zygote
ovulation
release of the ovum, approx 14 days before a woman’s next period
location of implantation
upper uterus (fundus)
embryonic period
extends from beginning of third week thru 8th week after conception
fetal period
beginning 9 weeks after conception and ending with birth
Naegele’s Rule for EDB
subjective/presumptive changes of pregnancy
-amenorrhea
- urinary frequency
- nausea and vomiting
- breast tenderness
objective/PROBABLE changes
POSITIVE signs of pregnancy
goodell’s sign vs chadwick sign
G: softening of the cervix
C: bluish-purple discoloration of cervix
physiological changes associated w/ pregnancy
-uterus enlargement
- endocervical glands secrete thick, sticky mucus to form mucus plug
- increase in pregnancy hormones
- breast enlargement
pregnancy hormones
progesterone role
oxytocin role
resp ssytem changes
increased oxygen requirements
15-20% oxygen consumption
dyspnea (shortness of breath)
cardiovascular changes
vena caval syndrome (eight of baby crushes IVC)
increased blood volume by 30-50%
increased HR by 10-15 beats
increased iron and RBC levels
gastrointestinal and urinary changes
slowing peristalsis/bloating
urinary frequency, increased risk UTI
skin and musculoskeletal changes
linea nigra
chloasma
stretchmarks
lumbar lordosis
increased risk for falls b/c of changed center of gravity
assessments of mother include
obstetrical and reproductive history
fetal heart check
physical examination (vitals, urine, weight, fundal height)
GTPAL
G: gravida - total number of pregnancies including abortions and miscarried
T: number of Term babies (babies born after 37 weeks)
P: number of Preterm babies
A; number of pregnancies ending in abortion or pregnancy under 20 weeks
L: number of Living children
weight gain for normal weight
25-35
weight gain for overweigtht women
15-25
weight gain for obese women
11-20
weight gain for underweight women
28-40 lb