OBGYN - ACOG quizzes, OB Questions + Answers Graded A+

physiologic dyspnea of pregnancy symptoms - "difficulty catching breath". No fever, chills, sputum, cough, edema, palpitations, chest pain What pulmonary volumes are decreased in pregnancy? - ERV, FRC, RV all due to increase in diaphragm Progesterone effects of pulmonary physiology - P causes increased central chemoreceptor sensitivity to CO2 which results in increased ventilation and reduction in arterial PCO2. Respiratory alkalosis that results from dec art pco2, compensated by kidney excretion of bicarb. --> LOWER BICARB levels in 0pregnancy! percent of women with physiologic dyspnea of pregnancy - 75% 39wk woman with fatigue, SOB, palpitations, edema - peripartum cardiomyopathy. it is idiopathic expected ABG of pregnant woman - art pc02 27-32 mmHg HCO3- 18-31 mEq/L pH 7.4 - 7.45 Maternal blood volume increases ________% by term - 35% How much iron is recommended daily for a pregnant nonanemic woman? - 60 mg in the ferrous sulfate form, a dose of 300mg is requred Which way does the OBC shift during pregnancy? - OBC shifts left due to respiratory alkalosis of pregnancyHow high can the white count rise during labor? - up to 30,000 pregnancy affect on GFR - increases GFR by 50% pregnancy affect on Cr and BUN - decrease in normal pregnancy pregnancy affect on minute ventilation - increased due to increased TV. Respiratory rate does not increase FRC is reduced to _____% of the non-pregnant volume by term - 80%! common causes of acute pulmonary edema in pregnancy - tocolytic use, cardiac disease, fluid overload, and preeclampsia multiple tocolytic use increases the mother's susceptibility to__________ - pulmonary edema changes in CO in pregnancy - CO incr 33% in pregnancy due to inc in both HR and SV. What contributes to right flank pt in some women during pregnancy (no hematuria, no fever, no leukocyte esterase or nitrites in the urine)? - dilation of the right ureter due to compression by the right ovarian vein complex and lies obliquely over the right ureter If a woman had a prior NTD affected pregnancy, how much folic acid should they consume in the preconception period? - 4 mg (as opposed to the regular 0.4mg) Screening tests offered to African Americans: - Hb electrophoresis (to test for Sickle cell, HbC, thalassemias)Ashekenazi Jews screening test: - Tay-Sachs, Canavan disease Cystic fibrosis Fanconi anemia Niemann-Pick Gaucher disease Bloom syndrome