Final answer:
Given the hemoglobin concentration and saturation level, we estimated the approximate venous content of oxygen using the Hüfner factor. However, the calculated estimation (4.02 mL O₂/dL) is not present in the provided options, thus indicating that additional information or context may be required for an accurate determination.
Step-by-step explanation:
The task is to calculate the approximate venous content of oxygen in a person whose hemoglobin concentration is 10 g/dL and venous hemoglobin saturation is 30 mmHg. The oxygen content in blood is determined by both the oxygen bound to hemoglobin and the oxygen dissolved in plasma. Since we're dealing with venous blood, we must consider the partial pressure of oxygen in the venous blood and the hemoglobin saturation.
However, from the information given, and without additional data such as the amount of oxygen that can be bound by each gram of hemoglobin, we cannot provide a precise calculation. Typically, each gram of hemoglobin can carry approximately 1.34 mL of oxygen when fully saturated.
Assuming that each gram of hemoglobin binds maximally to 1.34 mL O₂ (the Hüfner factor), we calculate the oxygen content for fully saturated blood (100% saturation) as follows: 10 g/dL x 1.34 mL O₂/g = 13.4 mL O₂/dL. To find the venous content of oxygen at 30% saturation: 13.4 mL O₂/dL x 0.30 = 4.02 mL O₂/dL. Thus, none of the answer options accurately matches the calculated estimate based on typical values for oxygen binding to hemoglobin.