NPWH Flashcards
PRESUMPTIVE signs of preganancy
Subjective symptoms reported by the patient
- amenorrhea
- breast tenderness, tingling, or enlargement
- areolar color changes
- fatigue
- urinary frequency
- n/v
- maternal perception of fetal movement
- skin changes such as linea nigra and straie
PROBABLE signs of pregnancy
Objective signs observed by the provider
- positive pregnancy test
- palpation of Braxton Hicks contractions
- increase in uterine size
- increase in abdominal
circumference - Hegar’s sign
- Goodell’s sign
- Chadwick’s sign
Hegar’s sign
softening of the lower uterine segment and cervical isthmus
Goodell’s sign
softening of the cervix
Chadwick’s sign
blue discoloration of the cervix and vagina
What are Braxton-Hick’s contractions
painless irregular contractions that do not cause cervical dilation
POSITIVE signs of pregnancy
those that confirm a pregnancy
- auscultation of fetal heart tones
- palpation of the ENTIRE fetal body by a healthcare provider
- palpation of fetal movements by the healthcare provider
- visualization on US of the gestational sac, embryo/fetus
____ sign of pregnancy: palpation of the ENTIRE fetal body by a healthcare provider
positive
Average length of gestation per Nagele’s rule
280 days
= 9 calendar months
____ sign of pregnancy: provider palpation of fetal movement
positive
Nagele’s rule
utilizing LMP
subtract 3 months
add 7 days
add 1 year
____ sign of pregnancy: patient perception of fetal movement
presumptive
____ sign of pregnancy: auscultation of fetal heart tones
positive
____ sign of pregnancy: amenorrhea
presumptive
____ sign of pregnancy: positive pregnancy test
probable
____ sign of pregnancy: provider palpation of increased uterine size
probable
____ sign of pregnancy: provider palpation of Braxton Hick’s contractions
probable
Between _____ to ____ weeks, the gestational age correlates with the measurement of fundal height in centimeters, within + or - _____cm
16-38 weeks
+ or - 3cm
Fetal heart sounds can be detected as early as _____ using a handheld doppler
10 weeks
Initial maternal perception of fetal movement within the uterus usually occurs between _____ weeks (quickening)
16-22 weeks
typically earlier for those who have been pregnant before
GTPAL: Gravida
number of pregnancies, regardless of outcome
if a woman is pregnant for the first time but carrying twins, she is still G1 because there are 2 fetuses but it is only 1 pregnancy
GTPAL: Term
number of pregnancies delivered at term > or = 37 weeks or weighing > or = 2500g
GTPAL: Preterm
number of pregnancies prematurely born between 20-36 weeks or weighing between 500-2499g
GTPAL: Abortion
number of spontaneous abortions, miscarriages, or terminations at <20 weeks or <500g
GTPAL: Living
number of current living children
GP: Gravidity
The total number of times a woman has been pregnant (including the current one), same as for GTPAL
GP: Parity
the number of pregnancies carried to the 20th week gestation or the delivery of an infant weighing >500g regardless of the outcome of the pregnancy
Nulligravida
never been pregnant
Nullipara
never carried a pregnancy past 20 weeks or delivered a baby >500g
Primigravida
first pregnancy
Primipara
has been or is currently pregnant for the first time past 20 weeks gestation
Multigravida
has been pregnant 2 or more times
Multipara
has carried 2 or more pregnancies past 20 weeks gestation or delivered an infant >500g more than once
Grand multipara
give birth five or more times
_____ sign of pregnancy: Hegar’s, Chadwick’s, and Goodell’s signs
probable
_____ sign of pregnancy: palpation of fetal movements by the healthcare provider
positive
Multiple gestations (e.g., twins) only counts as 1 in every GTPAL category except….
LIVING
Fertilization occurs in the fallopian tubes during the first _____ after release of the egg from the ovary
12 hours
Result of zygote mitotic division
blastomere
A 16-cell ball of blastomeres
morula
Morula travels into the uterus ____ after conception
3 days
Inner cell mass of the blastocyst becomes the….
embryo
Outer cell mass of the blastocyst becomes the….
trophoblast
The ____ attaches the blastocyst to the uterine wall and differentiates into two layers
trophoblast
The trophoblast, once implanted in the uterine wall, differentiates into these (2) layers which later develop into the placenta
- cytotrophoblast (inner layer)
2. synctiotrophoblast (outer layer)
The developing conceptus before the end of the ____ week after conception is referred to as an EMBRYO
8 weeks post-conception (10 weeks LMP)
Implantation occurs when after conception/fertilization
6-7 days after conception
Main function of the placenta
support normal growth of the fetus by facilitating exchange of nutrients and waste products between the fetal and maternal circulatory systems
Typical size and weight dimensions of a mature placenta
weighs 500g
2-3cm thick
20cm in diameter
the placenta and the chorion are both derived from the
trophoblast
the _____ establishes connection with the uterine lining, which gives rise to the placenta
chorionic villi
decidual tissue that surrounds the chorionic sac
decidua capsularis
fetal part of the placenta
chorion frondosum
maternal part of the placenta
decidua basalis
beta hCG is produced mainly by the ….
placenta
beta hCG may be detectable in the plasma as early as ___ days after conception
7 days
beta hCG’s main function
to maintain the corpus luteum and thus progesterone production
hPL is detectable as early as….
2-3 weeks after conception
hPL’s main function
acts as a diabetogenic that inhibits maternal insulin activity, influences carbohydrate metabolism, both of which increase maternal sugars for fetal nutrients
(8) placental hormones
- beta hCG
- hPL
- ACTH
- relaxin
- human placental growth hormone
- estradiol 17-beta
- estriol
- progesterone
ACTH (placental hormone)’s main function
may have an impact on fetal lung maturation
relaxin’s main function
thought to maintain quietude of the uterus early in pregnancy, and is also secreted by the corpus luteum during this stage