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NR 327 week 2, chapter 6 exam questions and answers.
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NR 327 week 2, chapter 6 exam questions and answers.
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NR 327 week 2, chapter 6 examquestions and answers
changes in body systems: uterus
- growth: before pregnancy
> 50-70 g (1.8- 2.5 oz)
> capacity = 10mL volume
- pattern of growth: growth due to hyperplasia and hypertrophy
> first trimester estrogen stimulation
> later same hyper due to muscle fibers stretching
- contractility: wall thickens early, then thins at end of pregnancy
- uterine blood flow 600-700 ml/minute through the placenta
changes in body systems: cervix
- chadwick's sign
> "bluing" of the cervix
- Goodell's sign
> significant softening of the vaginal portion of the cervix due to
blood flow
- mucus plug
> fills the nooks and crannies in the cervix to protect inside of
uterus.
> instruct patient to not bring this to the hospital with them in a zip
lock baggie
changes in body systems: vagina and vulva
- increased vascularity
- the vaginal mucosa thickens
- vaginal rugae become prominent
- increased production of lactic acid
changes in body systems: ovaries
- progesterone must be present in adequate amounts
> may need supplemental progesterone to maintain pregnancy
, - corpus luteum of the ovaries secretes progesterone
- ovulation ceases during pregnancy
changes in body systems: breasts
- estrogen stimulates the growth of mammary ductal tissue
- progesterone promotes the growth of the lobes, lobules, and
alveoli (milk production and storage)
- characteristic changes
> heaviness, stretch marks, veins very visible
- colostrum is secreted
changes in body systems: heart
- the muscles of the heart (myocardium) enlarge 10-15% during the
first trimester
- alteration of heart sounds
> frequently can hear S3
changes in body systems: blood volume
- increase begins by 6 weeks of gestation
changes in body systems: plasma volume
- increases from 6-8 weeks until 32 weeks of gestation
changes in body systems:red blood cell volume
- volume increases by about 20-30%
- physiologic anemia
changes in body systems: cardiac output
- output increases 30-50%
changes in systems: systemic vascular resistance
- decreases during pregnancy
changes in systems: blood pressure
- effects of position
- supine hypotension
changes in body systems: blood flow
- altered to include the uteroplacental unit
- renal plasma flow increases up to 30%
- skin requires increased circulation
- blood flow to the breasts increases
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