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26 Cards in this Set
- Front
- Back
body wt increases in pregnancy
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1kg amniotic fluid
1kg uterus 2kg interstitial fluid 2kg blood volume 4kg fetus/placenta 4kg new fat and protein |
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anatomic pulmonary changes
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elevated diaphragm
reduced FRC |
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anatomic cardio changes
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bivent hypertrophy
cardiac elevation and left rotation. |
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anatomic GI changes
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reduced cardioesophogeal tone
horizontal gastric axis |
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anatomic urogenital changes
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hydronephrosis
hydroureter increased bladder capacity urine stasis |
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anatomic circulatory
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aortocaval compression
lower body venous stasis |
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pulmonary physiol. changes
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increased O2 consumption
increased CO2 production increased alveolar ventilation |
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cardio physio changes
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increased cardiac output
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GI physio changes
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increased volume and acidity of gastric contents.
incresaed intragastric pressure. |
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urogenital physio changes
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increased renal bloodflow
increased GFR frequent UTI |
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circulatory physio changes
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expanded blood volume
greater thromboembolitic poss increased procoagulant activity |
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tracheal and bronchial dilation due to ???
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progesterone
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closing capacity vs FRC
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supine the closing cap will be greater than FRC in 1/3 to 1/2. at risk for hypoxemia
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increased volumes due to ??
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progesterone...is a resp stimulant. also increased sensitivity to CO2
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oxyHgb curve shifts???
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to the right. need to give O2 to the fetus
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effects of hyperentilation
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can cause umb. cord vessel constriction and shift maternal Hgb curve to the left
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most important to do during contracts/labor..easiest to do
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OXYGENATE
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increase of ???? blood volume during pregnancy
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40% or approx 1700mls
mostly plasma |
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blood volumes return to normal ??? postpartum
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within 6 months
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increase in blood volumes is called?
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physiological anemia of pregnancy
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effects of physiological anemia of pregnancy
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greater increase in plasma than RBC
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tx for anemia of pregnancy
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if Hgb < 10 then give Iron to stimulate eurythropoeisis. Can cause constipation
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duration of increase of blood volumes
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plasma and total volume begin to drop late 3rd trimester, RBC production continues to rise
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goal for Hgb
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keep above 12g%
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average blood loss for section
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750-1000ml
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average blood loss for vag delivery
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350-500ml
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