If some individuals who have the sickle-cell trait may never be symptomatic, how does exposure to high altitudes warrant health risks to that individual?
A) The cell shape, an oval, limits the ability to transport oxygen.
B) High altitude triggers a decrease in ambient oxygen.
C) Life span of a sickle cell is extended and fatigues easier.
D) The hypertrophic size of the cell allows too much passage through the blood vessels.
E) The unique cell shape inhibits clogging.

Question

Quizplus · Accepted Answer

High altitude triggers a decrease in ambient oxygen, which can exacerbate the symptoms of sickle-cell trait by causing more sickling of red blood cells due to lower oxygen levels. This can lead to complications even in individuals who are usually asymptomatic at lower altitudes.

If Some Individuals Who Have the Sickle-Cell Trait May Never