CBIC Hand Hygiene 2 — Questions and Answers
Question 1: According to CDC guidelines, which situation requires handwashing with soap and water rather than alcohol-based hand rub?
- After removing gloves
- When hands are visibly soiled with blood (Correct answer)
- Before administering oral medications
- After touching a patient's intact skin
Correct answer: When hands are visibly soiled with blood
Soap and water are required when hands are visibly soiled with blood, body fluids, or other protein-based materials.
Question 2: What is the minimum contact time recommended for alcohol-based hand rub to be effective?
- 5 seconds
- 10 seconds
- Until hands are dry (Correct answer)
- 30 seconds
Correct answer: Until hands are dry
Hands must be rubbed until completely dry, which typically takes 20–30 seconds, ensuring full antimicrobial activity.
Question 3: A nurse cares for a patient with Clostridioides difficile infection. Which hand hygiene method should be used after care?
- Alcohol-based hand rub only
- Soap and water only (Correct answer)
- Either soap and water or hand rub
- Antiseptic wipes followed by hand rub
Correct answer: Soap and water only
C. difficile spores are not killed by alcohol; soap and water physically remove spores via friction and rinsing.
Question 4: Which WHO 'moment' for hand hygiene occurs BEFORE a clean or aseptic procedure?
- Moment 1
- Moment 2 (Correct answer)
- Moment 3
- Moment 4
Correct answer: Moment 2
Moment 2 is 'Before a clean/aseptic procedure' to protect the patient from healthcare-associated pathogens.
Question 5: What is the maximum recommended alcohol concentration in hand rubs approved by WHO for antimicrobial efficacy?
- 50%
- 60%
- 80% (Correct answer)
- 95%
Correct answer: 80%
WHO formulation 1 contains 80% ethanol; concentrations above 90% are less effective because they lack sufficient water to denature proteins.
Question 6: Which factor most commonly contributes to healthcare worker non-compliance with hand hygiene?
- Lack of knowledge about pathogens
- Skin irritation from frequent handwashing (Correct answer)
- Unavailability of sinks
- High patient acuity
Correct answer: Skin irritation from frequent handwashing
Skin irritation and dermatitis from repeated washing are among the leading barriers to hand hygiene compliance.
Question 7: When measuring hand hygiene compliance, the 'direct observation' method is considered the gold standard because it:
- Counts all product dispensing events automatically
- Captures actual behavior at the point of care (Correct answer)
- Eliminates observer bias entirely
- Uses electronic sensors for accuracy
Correct answer: Captures actual behavior at the point of care
Direct observation captures real-time compliance behavior at point of care, including technique and timing, unlike indirect proxy measures.
CBIC Hand Hygiene 2
According to CDC guidelines, which situation requires handwashing with soap and water rather than alcohol-based hand rub?