The primary effect of chronic fevers on the body's respiratory functioning is seen in:
1. Increased oxygen requirements that exceed the body's ability to satisfy its needs
2. Increased respiratory rates that tax the body's reserves of stored energy
3. Breakdown of muscle mass, causing ineffective intercostal muscle function
4. The presence of a sense of general malaise that stresses the immune system
ANS: 3
When fever persists, the metabolic rate remains high and the body begins to break down protein stores, resulting in muscle wasting and decreased muscle mass. Respiratory muscles such as the diaphragm and intercostal muscles are also wasted. Although the remaining options are not in-correct, they do not represent the primary effect.
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