Consider the following statements regarding high-altitude sickness:
1. It typically occurs at elevations above 2,400 meters due to decreased air pressure
and oxygen levels.
2. High-altitude pulmonary edema (HAPE) is characterized by fluid accumulation in the
brain.
3. The body's initial response to high altitude includes increased production of red blood
cells.
4. Gradual ascent is the most effective prevention method for high-altitude illnesses.
Which of the statements given above are correct?
Explanation: Statements 1, 3, and 4 are correct. High-altitude sickness typically occurs
above 2,400 meters (statement 1), the body produces more red blood cells to carry
oxygen at high altitudes (statement 3), and gradual ascent is indeed the most effective
prevention method (statement 4). Statement 2 is incorrect as HAPE involves fluid
accumulation in the lungs, not the brain. High-altitude cerebral edema (HACE) is the
condition where fluid accumulates in the brain.
Explanation: Statements 1, 3, and 4 are correct. High-altitude sickness typically occurs
above 2,400 meters (statement 1), the body produces more red blood cells to carry
oxygen at high altitudes (statement 3), and gradual ascent is indeed the most effective
prevention method (statement 4). Statement 2 is incorrect as HAPE involves fluid
accumulation in the lungs, not the brain. High-altitude cerebral edema (HACE) is the
condition where fluid accumulates in the brain.