NURS 3444 Lecture Notes - Lecture 27: Stress Management, Hypokalemia, Aspirin
Document Summary
If breathing is too slow or shallow, carbonic acid accumulates in blood: increased pco2 and respiratory acidosis develops. If breathing too excessively or deeply, too much carbonic acid is breathed off: decreased pco2 and respiratory alkalosis develops. If not enough urine is produced, metabolic acids may not be effectively excreted by kidneys: accumulation may use up bicarbonate buffers, resulting in decreased serum bicarbonate. Oxyhemoglobin dissociation curve: left shift: hard to unload o2 to tissues, cold/alkalosis, right shift: easy to unload o2 to tissues. Blood ph: paco2 or t , blood ph, heat/acidosis, po2 drops off quickly after 60, pulse oximetry relationship to sao2, pao2 = 30, sao2 = 60, pao2 =60 , sa02 = 90. Ph 7. 31, co2 50mmhg, hco3- 22meq/l: respiratory acidosis, uncompensated, ph 7. 31, co2 50mmhg, hco3- 22meq/l, ph 7. 35 - 7. 45, co2 45 35, hco3 22 - 26, acid. Base: < 7. 35, < 45, < 22.
