Question

An individual with 99.4% SaO₂, a hemoglobin concentration of 150 g/L and a PaO₂ of 121 Torr would have a CaO₂ of in mL/min?

Answer 1

CaO₂ is the arterial oxygen content, representing the total oxygen bound to hemoglobin in arterial blood. Using the given values, the CaO₂ is approximately 332.3 mL/min.

Step-by-step explanation:

CaO₂ is also known as arterial oxygen content, which represents the total amount of oxygen bound to hemoglobin (in mL of O₂ per min) in arterial blood. To calculate CaO₂, we need to use the formula: CaO₂ = (SaO₂ * 1.34 * [hemoglobin]) + (0.003 * PaO₂). Where: SaO₂ is the percent saturation of hemoglobin with oxygen (given as 99.4%). [hemoglobin] is the concentration of hemoglobin in grams per liter (given as 150 g/L). PaO₂ is the partial pressure of oxygen in arterial blood (given as 121 Torr). By substituting the given values in the formula, we get CaO₂ = (99.4% * 1.34 * 150 g/L) + (0.003 * 121 Torr). After evaluating this expression, we find that the CaO₂ is approximately 332.3 mL/min.