Infection Control
Infection-control questions test hand hygiene, PPE, standard precautions, transmission-based precautions, contaminated linen, sharps safety, and cleaning routines.
How to study for the CNA exam
Build every answer around safety, dignity, infection control, scope of practice, observation, reporting, and client independence.
Core concepts
Concept 1
Hand hygiene is the most common first defense against infection spread.
Exam cue: Choose hand hygiene before and after contact or glove use.
Concept 2
PPE is selected based on expected exposure and removed to avoid self-contamination.
Exam cue: Match gloves, gown, mask, or eye protection to the expected exposure.
Concept 3
Contaminated items are handled according to facility policy and never placed on clean surfaces.
Exam cue: Keep clean and contaminated items separated.
Risk pitfalls and guardrails
Using gloves as a substitute for hand hygiene.
Guardrail: Avoid answers that force care, skip hand hygiene, move injured clients, expose private information, ignore changes, or perform nurse-only tasks.
Carrying dirty linen against the uniform.
Guardrail: Avoid answers that force care, skip hand hygiene, move injured clients, expose private information, ignore changes, or perform nurse-only tasks.
Touching clean surfaces with contaminated gloves.
Guardrail: Avoid answers that force care, skip hand hygiene, move injured clients, expose private information, ignore changes, or perform nurse-only tasks.
Memory anchors
Hand Hygiene
Hand hygiene is performed before and after care and after glove removal.
Standard Precautions
Standard precautions treat blood and body fluids as potentially infectious.
Gloves
Gloves are worn when contact with body fluids or contaminated items is expected.
PPE Removal
Remove PPE carefully to avoid contaminating skin or clothing.
Dirty Linen
Place dirty linen in the proper container and keep it away from the uniform.
Clean Surface
Clean supplies belong on clean surfaces away from contaminated items.
Isolation Sign
Follow posted isolation instructions before entering the room.
Cough Etiquette
Cover coughs, perform hand hygiene, and use masks when required.
Sharps Safety
Do not recap or handle sharps outside your role and facility policy.
Equipment Cleaning
Clean or disinfect shared equipment before it is used for another client.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
When should an aide perform hand hygiene before resident care?
After removing gloves used for incontinence care, what must the aide do?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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