For summer break, you plan to go trekking in Nepal on the world-famous Annapurna
ID: 215162 • Letter: F
Question
For summer break, you plan to go trekking in Nepal on the world-famous Annapurna Circuit. You fly from LAX to Jomson Airport, Nepal (elevation 8,976ft). In the first few days of your arrival there, which one of the following is most likely to happen?
There will be a leftward shift in your hemoglobin-O2 dissociation curve.
PO2 in your systemic arteries will be greater than 104 mm Hg.
Increased ventilation will make your blood more acidic.
Your respiratory rate will decrease. ?
Your kidney will increase production of erythropoietin.
A.There will be a leftward shift in your hemoglobin-O2 dissociation curve.
B.PO2 in your systemic arteries will be greater than 104 mm Hg.
C.Increased ventilation will make your blood more acidic.
D.Your respiratory rate will decrease. ?
E.Your kidney will increase production of erythropoietin.
Explanation / Answer
Correct answer would be:Your kidney will increase production of erythropoietin.
Reason: Kidneys will increase the secretion of erythropoietin and this occurs because at higher altitudes, oxygen availability is less and for this the body acclimatises by production of more red blood cells that in turn is promoted by the action of erythropoietin.