CNA Drill

CNA exam practice question: Basic Nursing Skills

Basic Nursing SkillsDifficulty 1/5

Which measure is the single most important for preventing the spread of infection?

  1. ADisinfecting the floor of the resident's room at the start of each shift
  2. BHand hygiene performed before and after contact with each resident
  3. CWearing gloves continuously throughout the entire working shift
  4. DPlacing every resident with an infection in a private isolation room
Show answer and rationale

Correct: B. Hand hygiene is why it is the one skill always included in the NNAAP practical evaluation. Infection control is also among the areas federal rule requires before any direct resident contact.

  • C — Gloves worn continuously carry organisms between residents exactly as unwashed hands do.
  • D — Isolation is used selectively and does not address transmission by staff hands.
  • A — Environmental cleaning matters, but hands are the principal route of transmission.

Concept being tested

21 of the 60 scored items and by far the largest area. Infection control, safety and emergency procedures, therapeutic and technical procedures, and data collection and reporting. This is over a third of the written exam on its own. — 35% of the exam. Study guide for Basic Nursing Skills.

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Primary references

  1. 42 CFR Part 483 Subpart D — Requirements That Must Be Met by States and State Agencies, Nurse Aide Training and Competency Evaluation — Office of the Federal Register (eCFR) · government · retrieved 2026-09-22, verified 2026-09-22
  2. Colorado Nurse Aide Written (or Oral) Examination and Skills Evaluation Candidate Handbook — Credentia Services LLC, in partnership with the Colorado Board of Nursing · primary · retrieved 2026-09-22, verified 2026-09-22
Last reviewed: 2026-10-07Reviewed by: Sarah Jenkins, BSN, RN, Nurse aide educator & clinical skills reviewHow we verify facts