Practice Question
Which immune cells are responsible for targeting and eliminating cancer cells and cells infected by viruses?
Answer Choices:
Correct Answer:
Cytotoxic T cells
Rationale:
🔸 Cytotoxic T cells (CD8+) directly destroy virus-infected cells.
🔸 They recognize antigens via the MHC class I pathway.
🔸 They induce apoptosis, protecting the body from cancer cell growth.
🔸 Antibodies (IgA, IgG) only tag pathogens, they don’t kill directly.
🔸 B cells produce antibodies but are not direct killers.
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This question is from NR412-EXAM 1 which contains 50 questions.
More Questions from This Exam
A nurse is reviewing the electrolyte panel of a patient who reports muscle cramps, tremors, and a positive Chvostek's sign. Based on this clinical presentation, which electrolyte imbalance is most concerning?
Answer Choices:
A. Low phosphorus level B High sodium level
B. High sodium level
C. High potassium level
D. Low calcium level
A group of student nurses are presenting on the topic of HIV/AIDs to their classmates. Which one of the following statements, if made by the student nurses, would be accurate?
Answer Choices:
A. Opportunistic infections decrease as the CD4 count decreases.
B. The virus infects and destroys the B memory cells in the immune system response.
C. A CD4 count greater than 1000 would be diagnostic of HIV/AIDS.
D. The "Seroconversion" is the time in which an infected person converts from being negative for HIV antibodies in the blood, to being positive for HIV antibodies in the blood.
Which physiologic change occurs when epinephrine is released during the stress response?
Answer Choices:
A. Bronchoconstriction
B. Increased blood glucose
C. Bradypnea
D. Retention of water
Where is blood plasma primarily found in the body?
Answer Choices:
A. Lymphatic fluid space
B. Intravascular fluid space
C. Intracellular fluid (ICF) space
D. Interstitial fluid space
Drag and drop the following steps into the correct order to show how the RAAS system responds to low blood pressure.
Answer Choices:
A. Renin stimulates Angiotensinogen's conversion to Angiotensin I
B. Angiotensin I is converted to Angiotensin II in the lungs
C. Renin is released by the kidneys
D. Blood pressure is increased
Question Details
- Category: RN Nursing Exam(s)
- Subcategory: Examplify Exam(s)
- Domain: Medical-Surgical
- Answer Choices: 4