What is a risk associated with high altitude for clients with CF?

What is a risk associated with high altitude for clients with CF?

• A. Increased risk of desaturation; supplemental oxygen may be required.
• B. Heightened immune response reduces infection risk.
• C. Improved exercise capacity due to lower air resistance.
• D. Hypoglycemia risk is dramatically increased.

Answer: (A)

High altitude lowers the amount of available oxygen in the air. For someone with cystic fibrosis, whose lungs already struggle with gas exchange, this drop can cause a notable drop in arterial oxygen saturation, especially during activity. That desaturation is the main risk at altitude, and it often means supplemental oxygen is needed to keep oxygen levels safe during travel or exercise. The other ideas don’t fit as well: altitude doesn’t inherently boost immune defenses, so infection risk isn’t reduced by being at high altitude. Exercise isn’t typically improved by thinner air for someone with CF; while airflow changes can feel easier, the reduced oxygen availability usually makes exercise capacity worse, not better. And hypoglycemia isn’t a specific, dramatic altitude-related risk for CF patients.

High altitude lowers the amount of available oxygen in the air. For someone with cystic fibrosis, whose lungs already struggle with gas exchange, this drop can cause a notable drop in arterial oxygen saturation, especially during activity. That desaturation is the main risk at altitude, and it often means supplemental oxygen is needed to keep oxygen levels safe during travel or exercise.

The other ideas don’t fit as well: altitude doesn’t inherently boost immune defenses, so infection risk isn’t reduced by being at high altitude. Exercise isn’t typically improved by thinner air for someone with CF; while airflow changes can feel easier, the reduced oxygen availability usually makes exercise capacity worse, not better. And hypoglycemia isn’t a specific, dramatic altitude-related risk for CF patients.