CNA Infection Control & Disease Process EXAM
PRACTICE TEST QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES
| INSTANT DOWNLOAD PDF
1. Which of the following is the most effective method to prevent the spread of infection in a
healthcare setting?
A. Wearing gloves only when touching blood
B. Frequent hand hygiene with soap and water or alcohol-based sanitizer
C. Avoiding contact with sick patients
D. Wearing a mask at all times
Answer: B – Frequent hand hygiene with soap and water or alcohol-based sanitizer is the most
effective way to prevent healthcare-associated infections.
2. Standard precautions in infection control include:
A. Hand hygiene
B. Using personal protective equipment (PPE)
C. Proper disposal of sharps
D. All of the above
Answer: D – Standard precautions include hand hygiene, PPE, and safe handling of sharps to
protect both patients and healthcare workers.
3. Which of the following is considered a mode of indirect transmission of infection?
A. Coughing directly on someone
B. Touching contaminated surfaces and then touching your face
C. Sharing a needle
D. Inhaling droplets from a sneeze
Answer: B – Indirect transmission occurs when infection is spread via contaminated objects
(fomites) rather than direct person-to-person contact.
,4. Which PPE is required when caring for a patient with tuberculosis?
A. Surgical mask
B. N95 respirator
C. Gown and gloves only
D. Face shield only
Answer: B – N95 respirators protect against airborne pathogens like tuberculosis.
5. Which of the following is the proper way to dispose of a used needle?
A. Throw it in the regular trash
B. Recap it and throw it in the sharps container
C. Place it directly into a labeled sharps container
D. Place it in a plastic bag and tie it
Answer: C – Used needles should go directly into labeled sharps containers to prevent needle-
stick injuries.
6. What is the primary purpose of isolation precautions?
A. To protect healthcare workers only
B. To prevent the spread of infection from patient to patient and to staff
C. To isolate patients for administrative purposes
D. To reduce the use of PPE
Answer: B – Isolation precautions prevent transmission of contagious diseases in healthcare
settings.
7. Which of the following diseases is spread by airborne transmission?
A. Influenza
B. Measles
C. Hepatitis A
D. MRSA
Answer: B – Measles is highly contagious via airborne particles.
8. A patient has a surgical wound with pus drainage. Which type of infection is most likely?
A. Viral infection
B. Bacterial infection
C. Fungal infection
D. Parasitic infection
Answer: B – Pus typically indicates a bacterial infection.
9. When should hand hygiene be performed in healthcare?
A. Before and after patient contact
B. After contact with body fluids
, C. After removing gloves
D. All of the above
Answer: D – Hand hygiene is required at all these moments to prevent transmission of
pathogens.
10. Which of the following is considered a nosocomial infection?
A. Influenza caught at home
B. Pneumonia acquired after 48 hours of hospital admission
C. Chickenpox in a child
D. Food poisoning from a restaurant
Answer: B – Nosocomial infections are acquired in a healthcare setting after 48 hours of
admission.
11. What is the correct order for donning PPE?
A. Gloves, gown, mask, goggles
B. Mask, gown, goggles, gloves
C. Gown, gloves, mask, goggles
D. Mask, gloves, gown, goggles
Answer: B – PPE should be donned in the order: mask, gown, goggles/face shield, gloves.
12. A patient has C. difficile infection. What precaution is required?
A. Contact precautions with gown and gloves
B. Airborne precautions
C. Standard precautions only
D. Droplet precautions
Answer: A – C. difficile spreads via contact with contaminated surfaces or hands, requiring
contact precautions.
13. Which of the following is a common sign of infection?
A. Fever
B. Redness
C. Swelling
D. All of the above
Answer: D – Fever, redness, and swelling are classic signs of infection.
14. The chain of infection includes which of the following elements?
A. Pathogen
B. Reservoir
C. Mode of transmission
D. All of the above
PRACTICE TEST QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES
| INSTANT DOWNLOAD PDF
1. Which of the following is the most effective method to prevent the spread of infection in a
healthcare setting?
A. Wearing gloves only when touching blood
B. Frequent hand hygiene with soap and water or alcohol-based sanitizer
C. Avoiding contact with sick patients
D. Wearing a mask at all times
Answer: B – Frequent hand hygiene with soap and water or alcohol-based sanitizer is the most
effective way to prevent healthcare-associated infections.
2. Standard precautions in infection control include:
A. Hand hygiene
B. Using personal protective equipment (PPE)
C. Proper disposal of sharps
D. All of the above
Answer: D – Standard precautions include hand hygiene, PPE, and safe handling of sharps to
protect both patients and healthcare workers.
3. Which of the following is considered a mode of indirect transmission of infection?
A. Coughing directly on someone
B. Touching contaminated surfaces and then touching your face
C. Sharing a needle
D. Inhaling droplets from a sneeze
Answer: B – Indirect transmission occurs when infection is spread via contaminated objects
(fomites) rather than direct person-to-person contact.
,4. Which PPE is required when caring for a patient with tuberculosis?
A. Surgical mask
B. N95 respirator
C. Gown and gloves only
D. Face shield only
Answer: B – N95 respirators protect against airborne pathogens like tuberculosis.
5. Which of the following is the proper way to dispose of a used needle?
A. Throw it in the regular trash
B. Recap it and throw it in the sharps container
C. Place it directly into a labeled sharps container
D. Place it in a plastic bag and tie it
Answer: C – Used needles should go directly into labeled sharps containers to prevent needle-
stick injuries.
6. What is the primary purpose of isolation precautions?
A. To protect healthcare workers only
B. To prevent the spread of infection from patient to patient and to staff
C. To isolate patients for administrative purposes
D. To reduce the use of PPE
Answer: B – Isolation precautions prevent transmission of contagious diseases in healthcare
settings.
7. Which of the following diseases is spread by airborne transmission?
A. Influenza
B. Measles
C. Hepatitis A
D. MRSA
Answer: B – Measles is highly contagious via airborne particles.
8. A patient has a surgical wound with pus drainage. Which type of infection is most likely?
A. Viral infection
B. Bacterial infection
C. Fungal infection
D. Parasitic infection
Answer: B – Pus typically indicates a bacterial infection.
9. When should hand hygiene be performed in healthcare?
A. Before and after patient contact
B. After contact with body fluids
, C. After removing gloves
D. All of the above
Answer: D – Hand hygiene is required at all these moments to prevent transmission of
pathogens.
10. Which of the following is considered a nosocomial infection?
A. Influenza caught at home
B. Pneumonia acquired after 48 hours of hospital admission
C. Chickenpox in a child
D. Food poisoning from a restaurant
Answer: B – Nosocomial infections are acquired in a healthcare setting after 48 hours of
admission.
11. What is the correct order for donning PPE?
A. Gloves, gown, mask, goggles
B. Mask, gown, goggles, gloves
C. Gown, gloves, mask, goggles
D. Mask, gloves, gown, goggles
Answer: B – PPE should be donned in the order: mask, gown, goggles/face shield, gloves.
12. A patient has C. difficile infection. What precaution is required?
A. Contact precautions with gown and gloves
B. Airborne precautions
C. Standard precautions only
D. Droplet precautions
Answer: A – C. difficile spreads via contact with contaminated surfaces or hands, requiring
contact precautions.
13. Which of the following is a common sign of infection?
A. Fever
B. Redness
C. Swelling
D. All of the above
Answer: D – Fever, redness, and swelling are classic signs of infection.
14. The chain of infection includes which of the following elements?
A. Pathogen
B. Reservoir
C. Mode of transmission
D. All of the above
