Question

1. which term demonstrates breathing that improves when standing or sitting up?

dyspnea
orthopnea
apnea
bradypnea

Explanation:

Orthopnea is defined as shortness of breath that improves when standing or sitting upright. Dysnea is general difficulty breathing, apnea is absence of breathing, and bradypnea is slow breathing—none match the described pattern except orthopnea.

Answer:

Orthopnea