APA 2312 Lecture Notes - Lecture 19: Hyperventilation, Cardiac Output, Embolism
4 Apr 2016
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At alitude, the volume of difused gas in the lung is decreased compared to sea level (fick"s. Anemia shits the oxyhemoglobin dissociaion curve downwards and to the right. Step 3 of transportaion of oxygen (o2) and. Carbon dioxide (co2: transport of o2 and co2 via the blood. Parial pressure drops when issue picks up oxygen, hemoglobin drops o2 (e. g. exercise) Decreased ph causes shit to the right in saturaion curve. Minimal efect on o2 loading in the alveoli. Produced within rbc under condiions of low o2 such as anemia and high alitude. Hemoglobin has greater ainity for carbon monoxide (co) than for o2. Binds and retains o2 more readily than hb at low po2. For each mmhg of po2 0. 003 ml of o2 dissolved / 100 ml blood. For po2 of 100 mmhg (sea-level) = 0. 30 ml of o2 dissolved / 100 ml blood. For cardiac output (q) of 5 l/min (rest): Main urge to breathe comes from pco2.
