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9 Cards in this Set
- Front
- Back
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What may be the initiating factor that causes decreased vascular resistance in pregnancy?
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Estrogens, progesterone, prostacyclin
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What vascular beds have lowered resistance in pregnancy?
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uterine and renal
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In pregnancy, how has heart rate changed at term?
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increase by 15 - 20%
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In pregnancy, how has cardiac output changed at term?
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Increase 50%
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How high can cardiac output get in labor?
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12 - 14L/min
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What is supine hypotensive syndrome?
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Maternal tachycardia, arterial hypotension, faintness, pallor which occurs in 10% of pregnant women.
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When does aortocaval compression reach its zenith in pregnancy?
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by 36 - 38 weeks gestation after which it may decrease as the fetal head descends into the pelvis.
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By how much can a supine position decrease cardiac output in a pregnanct woman in the last weeks of pregnancy?
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Cardiac output can decrease to pre-pregnant levels.
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What changes may occur in an ECG in a pregnany woman and why?
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LAD may result from upward displacement of the heart by the gravid uterus and there may be, PACs, sinus tach, and paroxysmal supraventricular tachycardia.
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