,NR 224 Final Exam Fundamentals - Skills | Practice Questions &
Answers 2026/2027 | Chamberlain
1.** What is the most effective method to prevent the transfer of
*Clostridium difficile* (C. diff)?
A) Alcohol-based hand sanitizer
B) Hand hygiene with soap and water
C) Wearing gloves only
D) Wearing a mask
**Correct Answer:** B) Hand hygiene with soap and water
**Rationale:** Soap and water physically remove C. difficile spores from
hands. Alcohol-based hand sanitizers do NOT kill C. diff spores. C. diff
requires Contact Precautions.
---
**2.** Which type of isolation precaution requires a negative-pressure private
room with at least 6-12 air exchanges per hour?
A) Contact precautions
B) Droplet precautions
C) Airborne precautions
D) Standard precautions
**Correct Answer:** C) Airborne precautions
,**Rationale:** Airborne Precautions require a negative-pressure private room
(airborne infection isolation room) with at least 6–12 air exchanges per hour,
using HEPA filters. This is required for diseases such as tuberculosis,
measles, and varicella.
---
**3.** A nurse is preparing to enter a patient's room on contact precautions.
In which order should the nurse apply personal protective equipment (PPE)?
A) Gloves, gown, mask, eye protection
B) Gown, mask, eye protection, gloves
C) Mask, eye protection, gown, gloves
D) Gloves, mask, gown, eye protection
**Correct Answer:** B) Gown, mask, eye protection, gloves
**Rationale:** The correct sequence for applying PPE is: gown first, then
mask, then eye protection, and gloves last. Gloves are applied last to prevent
contamination of the other PPE.
---
**4.** A patient is placed on droplet precautions. Which PPE is required when
entering the room?
A) Gloves only
B) Gown and gloves
C) Mask, gown, and gloves
, D) N95 respirator, gown, and gloves
**Correct Answer:** C) Mask, gown, and gloves
**Rationale:** Droplet precautions require a mask, gown, and gloves. A
private room is preferred, and the patient should wear a mask during
transport. N95 respirators are used for airborne precautions.
---
**5.** The chain of infection includes which of the following components?
(Select all that apply.)
A) Infectious agent
B) Reservoir
C) Portal of exit
D) Mode of transmission
E) Portal of entry
F) Susceptible host
**Correct Answer:** A, B, C, D, E, F — All of the above
**Rationale:** The chain of infection consists of six links: infectious agent,
reservoir, portal of exit, mode of transmission, portal of entry, and
susceptible host. Breaking any link in the chain prevents infection
transmission.
---
Answers 2026/2027 | Chamberlain
1.** What is the most effective method to prevent the transfer of
*Clostridium difficile* (C. diff)?
A) Alcohol-based hand sanitizer
B) Hand hygiene with soap and water
C) Wearing gloves only
D) Wearing a mask
**Correct Answer:** B) Hand hygiene with soap and water
**Rationale:** Soap and water physically remove C. difficile spores from
hands. Alcohol-based hand sanitizers do NOT kill C. diff spores. C. diff
requires Contact Precautions.
---
**2.** Which type of isolation precaution requires a negative-pressure private
room with at least 6-12 air exchanges per hour?
A) Contact precautions
B) Droplet precautions
C) Airborne precautions
D) Standard precautions
**Correct Answer:** C) Airborne precautions
,**Rationale:** Airborne Precautions require a negative-pressure private room
(airborne infection isolation room) with at least 6–12 air exchanges per hour,
using HEPA filters. This is required for diseases such as tuberculosis,
measles, and varicella.
---
**3.** A nurse is preparing to enter a patient's room on contact precautions.
In which order should the nurse apply personal protective equipment (PPE)?
A) Gloves, gown, mask, eye protection
B) Gown, mask, eye protection, gloves
C) Mask, eye protection, gown, gloves
D) Gloves, mask, gown, eye protection
**Correct Answer:** B) Gown, mask, eye protection, gloves
**Rationale:** The correct sequence for applying PPE is: gown first, then
mask, then eye protection, and gloves last. Gloves are applied last to prevent
contamination of the other PPE.
---
**4.** A patient is placed on droplet precautions. Which PPE is required when
entering the room?
A) Gloves only
B) Gown and gloves
C) Mask, gown, and gloves
, D) N95 respirator, gown, and gloves
**Correct Answer:** C) Mask, gown, and gloves
**Rationale:** Droplet precautions require a mask, gown, and gloves. A
private room is preferred, and the patient should wear a mask during
transport. N95 respirators are used for airborne precautions.
---
**5.** The chain of infection includes which of the following components?
(Select all that apply.)
A) Infectious agent
B) Reservoir
C) Portal of exit
D) Mode of transmission
E) Portal of entry
F) Susceptible host
**Correct Answer:** A, B, C, D, E, F — All of the above
**Rationale:** The chain of infection consists of six links: infectious agent,
reservoir, portal of exit, mode of transmission, portal of entry, and
susceptible host. Breaking any link in the chain prevents infection
transmission.
---
