Table 3.01a - Some Maternal Changes during Pregnancy.
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incr. blood volume incr. erythrocyte mass incr. plasma volume incr. cardiac output & incr. cardiac output incr. heart rate incr. stroke volume incr./decr. in systemic BP decr. diastolic BP incr. pulse pressure |
decr. systemic vascular resistance decr. pulm. vascular resistance decr. colloid osmotic poressure decr. hematocrit decr. hemoglobin conc. incr. erythropoietin incr. erythrocyte production |
incr. Na retention --> incr. water retention incr. renin activity --> incr. aldosterone secretion incr. maternal body wt. incr. oxygen consumption redistrubtion of blood flow incr. uterine blood flow |
incr. heart contractility / iontropicity incr. heart oxygen requirement incr. mammary gland blood flow incr. renal blood flow incr. left atrial diameter appearance of venous hum appearance of systolic murmur incr. episodes of arrhythmia |