CNA Practice Test
Infection controlQuestion 241 of 1700

Why does infection raise the heart rate?

  1. The resident is anxious about the illness
  2. The resident cannot sleep well at night
  3. The body burns energy faster during infection
  4. Infection lowers the blood pressure a great deal
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Correct answer: The body burns energy faster during infection

Infection speeds up the body's metabolism, and a faster heart rate follows. Report a fast pulse or fast breathing to the nurse.

Source: Nursing Assistant (Reuter), 4.7: Signs and Symptoms of Infection

Practice infection control

Questions last reviewed: 18 October 2026