CNA Practice Test
Infection controlQuestion 1124 of 1700

What is a portal of entry?

  1. The route by which a germ leaves the reservoir
  2. The germ that causes the disease itself
  3. The person who becomes sick from the germ
  4. The way a germ gets into a new host
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Correct answer: The way a germ gets into a new host

Entry is the reverse of exit. Broken skin and catheter sites are common entry points.

Source: Nursing Assistant (Reuter), 4.2: Chain of Infection

Practice infection control

Questions last reviewed: 18 October 2026