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9 Cards in this Set
- Front
- Back
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Pregnancy tests
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8-10 days after conception, analyze maternal blood or urine for human chorionic gonadotropin (HCG) which is produced by trophoblastic cells of developing placenta
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In general, the cardiovascular system alters in pregnancy to be...?
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high flow, low resistance, and hyperdynamic
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Review, what is cardiac output?
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the survival of mother and baby
= HR x SV reflects the functional capacity of left ventricle to maintain BP and organ perfusion |
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What is venal caval syndrome?
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When the uterus impedes venous return to the right side of the heart and decreases CO, occurs when mother is supine
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How do estrogen and progesterone mediate systemic and pulmonary vascular resistance?
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Relax the smooth muscles of the blood vessels to decrease resistance
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What is functional residual capacity and what happens to it during pregnancy?
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FRC is the amount of gas exchange that occurs between ventilations, very depressed during pregnancy
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Explain the diffusion gradients that create the flow of arterial blood gases
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Mom's pO2 is normally 104-108 but baby is 20-31 so strong diffusion to baby. If mom is sick and her pO2 is lowered to 16 then she will hold onto her O2 b/c no gradient to move it to baby.
Baby CO2 is normally 45-60 with mom at 27-32 so gradient is from baby to mom. If mom is sick and managed at nonpregnant levels of 45 then the baby will hold onto CO2 b/c no gradient to help it get rid of CO2 |
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What kind of hematologicaly state is a woman in during pregnancy?
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hypercoaguable, clot faster and hang onto clots longer
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Operculum
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mucous plug that acts as a barrier against invasion during pregnancy, sits in between the cervix and fetal membranes
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