ATI - The Immune System Test
Questions and Answers | Latest Version
| 2025/2026 | Correct & Verified
What is the primary function of the immune system?
A. To digest food
✔✔B. To defend the body against pathogens
C. To regulate hormones
D. To transport oxygen in the blood
Which of the following is an example of active immunity?
A. Receiving antibodies through breast milk
✔✔B. Getting vaccinated for hepatitis B
C. Being treated with immunoglobulin
D. Receiving antibodies through a blood transfusion
A nurse is caring for a client with a compromised immune system. Which precaution should be
prioritized?
A. Let the client ambulate freely
1
,✔✔B. Minimize exposure to infectious visitors
C. Provide a high-fat diet
D. Place client in a shared room
Which type of immunity is developed after recovering from an infection?
A. Artificial passive
✔✔B. Natural active
C. Artificial active
D. Natural passive
What is a sign that a client may be experiencing an allergic reaction to a new medication?
✔✔A. Difficulty breathing and rash
B. Lower back pain
C. Slow heart rate
D. Constipation
Which lab result would a nurse expect to be elevated in a client with an acute infection?
A. Hematocrit
2
, ✔✔B. White blood cell count
C. Hemoglobin
D. Platelets
What type of cells are primarily responsible for producing antibodies?
A. T-cells
✔✔B. B-cells
C. Red blood cells
D. Platelets
A client is prescribed an immunosuppressant. Which of the following should the nurse include in
client teaching?
✔✔A. Avoid large crowds and people who are sick
B. Take the medication on an empty stomach
C. Increase vitamin C and iron supplements
D. Reduce water intake
Which condition involves an overreaction of the immune system to harmless substances?
3
Questions and Answers | Latest Version
| 2025/2026 | Correct & Verified
What is the primary function of the immune system?
A. To digest food
✔✔B. To defend the body against pathogens
C. To regulate hormones
D. To transport oxygen in the blood
Which of the following is an example of active immunity?
A. Receiving antibodies through breast milk
✔✔B. Getting vaccinated for hepatitis B
C. Being treated with immunoglobulin
D. Receiving antibodies through a blood transfusion
A nurse is caring for a client with a compromised immune system. Which precaution should be
prioritized?
A. Let the client ambulate freely
1
,✔✔B. Minimize exposure to infectious visitors
C. Provide a high-fat diet
D. Place client in a shared room
Which type of immunity is developed after recovering from an infection?
A. Artificial passive
✔✔B. Natural active
C. Artificial active
D. Natural passive
What is a sign that a client may be experiencing an allergic reaction to a new medication?
✔✔A. Difficulty breathing and rash
B. Lower back pain
C. Slow heart rate
D. Constipation
Which lab result would a nurse expect to be elevated in a client with an acute infection?
A. Hematocrit
2
, ✔✔B. White blood cell count
C. Hemoglobin
D. Platelets
What type of cells are primarily responsible for producing antibodies?
A. T-cells
✔✔B. B-cells
C. Red blood cells
D. Platelets
A client is prescribed an immunosuppressant. Which of the following should the nurse include in
client teaching?
✔✔A. Avoid large crowds and people who are sick
B. Take the medication on an empty stomach
C. Increase vitamin C and iron supplements
D. Reduce water intake
Which condition involves an overreaction of the immune system to harmless substances?
3
