CFRN Questions and Answers Already Passed

CFRN Questions and Answers Already Passed What htz would you expect to see flicker vertigo? 5-20 htz Will see at slower speeds such as shutdown & idle. At 18,000 ft, mean sea level 380 tore, what is the partial pressure of oxygen? 80 Atmospheric pressure * 0.21 = partial pressure of O2 360 * .21 PO2 Partial pressure of O2 in the ENVIRONMENT. PAO2 Partial pressure of O2 in ALVEOLI. PaO2 Partial pressure of O2 in ARTERIAL blood. How many total ATP are there at the end of the electron transport chain? 36 total. We make a total of 38, but utilize 2 between glycolysis & the Krebs cycle. SaO2 Amount of hgb in the blood that are saturated. SpO2 Total saturation of O2 bound to hgb. What is going on with each individual hgb molecule. SvO2 Mixed venous O2 saturation. What is the consumption? Can only be measured from a PA catheter. CaO2 Total content of O2 bound to hgb. DO2 Delivery of O2 each minute. (CaO2 x CO) Product of SaO2, Hgb, Cardiac Output ScvO2 Central venous O2 saturation. Drawn off distal port of central line. Will be 5-8% higher. Where is CO2 produced? Krebs Cycle How many ATP are produced in anaerobic metabolism? 2 Anaerobic metabolism never get to electron transport chain. Goes continuously back & forth between glycolysis & Krebs cycle. Aerobic is dependent on these 4 things. - adequate O2 delivery - ability to carry O2 (Hgb) - ability to move O2 (cardiac output) - ability to extract O2 to cells Bohr