CPC Safety Procedures & Infection Control 3 — Questions and Answers
Question 1: A collector must remove gloves after each patient collection. In what order should gloves be removed to prevent self-contamination?
- Either glove first, then dispose together
- Grasp outside of first glove and peel off; use bare fingers to remove second glove from inside (Correct answer)
- Remove both gloves simultaneously by pulling at the wrists
- Cut gloves with scissors before removal
Correct answer: Grasp outside of first glove and peel off; use bare fingers to remove second glove from inside
The correct technique is to peel the first glove off touching only the outside, then slide a bare finger under the cuff of the second glove to avoid touching its outer surface.
Question 2: Which disinfectant concentration is recommended by the CDC for decontaminating blood spills on hard surfaces?
- 1:100 dilution of household bleach
- 1:10 dilution of household bleach (Correct answer)
- Isopropyl alcohol 70%
- Hydrogen peroxide 3%
Correct answer: 1:10 dilution of household bleach
A 1:10 bleach solution (approximately 5,000 ppm sodium hypochlorite) is recommended for blood spills on environmental surfaces.
Question 3: Under what circumstance is hand sanitizer (alcohol-based) NOT an acceptable alternative to handwashing?
- After removing gloves
- When hands are visibly soiled (Correct answer)
- Before donning gloves
- Between patient collections
Correct answer: When hands are visibly soiled
Alcohol-based hand sanitizer is ineffective on visibly dirty or soiled hands; soap and water must be used in those situations.
Question 4: What color bag is universally used for regulated medical/biohazardous waste in the United States?
- Red (Correct answer)
- Yellow
- Orange
- Clear
Correct answer: Red
Red biohazard bags are the standard color for regulated medical waste containing blood or OPIM in the United States.
Question 5: A hepatitis B vaccination series provides protection for most healthcare workers. What percentage of vaccinated individuals develop immunity?
- 50–60%
- 70–75%
- 85–90%
- 95–99% (Correct answer)
Correct answer: 95–99%
Approximately 95% or more of healthy adults who complete the three-dose hepatitis B vaccine series develop adequate antibody response.
Question 6: Which isolation precaution category requires a collector to wear a gown and gloves when entering the patient's room?
- Airborne precautions
- Droplet precautions
- Contact precautions (Correct answer)
- Standard precautions alone
Correct answer: Contact precautions
Contact precautions require gown and gloves upon room entry because pathogens can spread via direct skin contact or contaminated surfaces.
Question 7: What is the purpose of an exposure control plan required under the OSHA Bloodborne Pathogens Standard?
- To document employee sick days related to infections
- To outline methods for eliminating or minimizing employee exposure to bloodborne pathogens (Correct answer)
- To list all patients with known infectious diseases
- To schedule annual blood draws for staff
Correct answer: To outline methods for eliminating or minimizing employee exposure to bloodborne pathogens
The exposure control plan is a written document detailing how the employer will eliminate or reduce employee exposure to blood and OPIM.
CPC Safety Procedures & Infection Control 3
A collector must remove gloves after each patient collection.
In what order should gloves be removed to prevent self-contamination?