Training at high altitude after training at sea level, causes a person’s: hemato
ID: 3520744 • Letter: T
Question
Training at high altitude after training at sea level, causes a person’s:
hematocrit to decrease while hemoglobin concentration increases.
hematocrit and hemoglobin concentration to increase.
hematocrit and hemoglobin concentration to decrease.
hematocrit to increase while hemoglobin concentration decreases.
Based on the function of erythrocytes and hemoglobin, and the results of the hematocrit and hemoglobin concentration experiment, which of the following would be a logical conclusion
Oxygen is less available at higher altitudes.
Oxygen is more available at higher altitudes.
Training at higher altitudes has no bearing on erythropoiesis.
Decreased oxygen inhibits erythropoiesis.
Agglutination in anti-A serum means that the RBCs:
have the A antigen in their plasma membranes.
have the B antigen in their plasma membranes.
have the O antigen in their plasma membranes.
none of the above.
hematocrit to decrease while hemoglobin concentration increases.
Explanation / Answer
1. Option 2nd is correct. At higher altitute the air is thinner (less availability of oxygen). Thus, at higher altitudes, in order to meet the extra oxygen, erythropoesis increases which results in increased concentration of RBC. Increased amount of RBC carry more amount of oxygen. Hematocrit is defined as the ratio of packed volume of RBC to total volume of blood. Since concentration of hemoglobin increases, hematocrit value also increases.
2. Option 1st is correct. An increase in concentration of RBC at higher altitude proves that the oxygenj is less available at higher altitude. RBC is responsible of carrying of oxygen.
3. Option 1st is correct. If your blood aglutinates in anti A serum, it means you have the A antigen and your blood type is A.
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