3/6/13 Flashcards

1
Q

When do the Sx of hyperemesis gravidarum usu occur?

A

wks 4-10

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2
Q

When hyperemesis begins after ___ wks or persists beyond ___ wks, another etiology should be considered.

A

10; 20

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3
Q

What causes the elevated amylase and lipase in hyperemesis gravidarum?

A

salivary glands d/t vomiting

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4
Q

What are the 3 indications for delivery of the infant in HELLP syndrome?

A

> 34 wks, maternal or fetal distress, fetal lung maturity

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5
Q

At what gestational age should pregnant mothers be screened for diabetes?

A

24-28 wks

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6
Q

What are the first two signs of megnesium toxicity in order?

A
  1. reduced DTRs

2. respi depression

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7
Q

What is the emergency Tx of Mg++ toxicity?

A

calcium gluconate

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8
Q

How does Mg++ cause toxicity (2 reasons)?

A

CNS depression, blocks transmission at neuromuscular junction

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9
Q

What is the mechanism of hypotension as a side effect of epidural anesthesia?

A

sympathetic fiber block leads to venodilation and pooling in lower limbs

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10
Q

What are the 2 main stimuli for milk production following delivery?

A

decrease in estrogen and progesterone (no longer inhibit prolactin) and suckling, which releases prolactin and oxytocin

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11
Q

What hormone is reponsible for milk production?

A

prolactin

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12
Q

Which hormone is responsible for milk ejection (contraction of lactiferous glands and ducts)?

A

oxytocin

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13
Q

How is lactation suppression accomplished?

A

tight-fitting bra, avoidance of nipple manipulation, and ice packs

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14
Q

What do you call heavy vaginal bleeding that occurs in the absence of any structural or organic disease?

A

Dysfunctional Uterine Bleeding (DUB)

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15
Q

What are the risk factors that require a woman with DUB to undergo endometrial biopsy? How many risk factors need to be met for biopsy?

A

age >35, obese, chronically hypertensive, or diabetic; just 1

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16
Q

What is the definition of a threatened abortion?

A

any hemorrhage before the 20th wk w/ a live fetus and a closed cervix

17
Q

What is the first step in a suspected threatened abortion?

A

US verification that fetus is alive

18
Q

What should be done once a threatened abortion is confirmed?

A

follow-up US after 1 wk

19
Q

What is clomiphene citrate?

A

estrogen analog

20
Q

What does clomiphene do?

A

causes ovulation

21
Q

How does clomiphene cause ovulation?

A

improves GnRH and FSH release