Nursing Elites

1. Which type of cell is responsible for producing antibodies in the immune system?

• A. B lymphocytes
• B. T lymphocytes
• C. Macrophages
• D. Neutrophils

Correct answer: A

Rationale: The correct answer is A: B lymphocytes. B lymphocytes (B cells) are a crucial part of the adaptive immune system. They produce antibodies, which are proteins that specifically target and neutralize pathogens such as bacteria and viruses. T lymphocytes (choice B) are involved in cell-mediated immunity rather than antibody production. Macrophages (choice C) are phagocytic cells that engulf and digest pathogens but do not produce antibodies. Neutrophils (choice D) are a type of white blood cell that primarily function in the innate immune response by phagocytosing pathogens.

2. Which neurotransmitter is most closely associated with mood regulation and is targeted by antidepressants?

• A. Serotonin
• B. Dopamine
• C. GABA
• D. Acetylcholine

Correct answer: A

Rationale: The correct answer is A: Serotonin. Serotonin plays a vital role in mood regulation, and its imbalance is often associated with depression. Many antidepressants function by boosting serotonin levels in the brain. Dopamine (Choice B) is more linked to reward and pleasure pathways in the brain, not primarily targeted for mood regulation. GABA (Choice C) is an inhibitory neurotransmitter that helps reduce neuronal excitability, not primarily associated with mood regulation. Acetylcholine (Choice D) is involved in muscle movement and cognitive functions, not the primary target of antidepressants for mood regulation.

3. What is the first action a healthcare professional should take when a patient’s nasogastric (NG) tube becomes clogged?

• A. Flush the tube with water
• B. Reposition the patient
• C. Attempt to aspirate the clog with a syringe
• D. Administer a medication to dissolve the clog

Correct answer: C

Rationale: When a patient's nasogastric (NG) tube becomes clogged, the first action to take is to attempt to aspirate the clog with a syringe. This is a standard and initial step to clear the blockage in the tube. Flushing the tube with water (Choice A) may not address the specific clog; repositioning the patient (Choice B) is not directly related to clearing the tube. Administering a medication to dissolve the clog (Choice D) should only be considered after simpler methods like aspiration have been attempted.

4. In obtaining an orthostatic vital sign measurement, what action should the nurse take first?

• A. Count the client's radial pulse
• B. Apply a blood pressure cuff
• C. Instruct the client to lie supine
• D. Assist the client to stand upright

Correct answer: C

Rationale: The correct first action when obtaining an orthostatic vital sign measurement is to instruct the client to lie supine. This allows for establishing a baseline measurement of vital signs before any positional changes. Counting the client's radial pulse (Choice A) is a step that follows after the initial supine position to assess changes in pulse rate. Applying a blood pressure cuff (Choice B) and assisting the client to stand upright (Choice D) are actions that come later in the process after the baseline measurements are obtained in the supine position.

5. Which task could the nurse safely delegate to the UAP?

• A. Oral feeding of a two-year-old child after application of a hip spica cast
• B. Assessment of the placement and patency of an NG tube
• C. Participation in staff rounds to record notes regarding client goals
• D. Evaluation of a client's incisional pain following narcotic administration

Correct answer: A

Rationale: The correct answer is A because oral feeding of a stable child is a task that can be safely delegated to a UAP. This task does not require nursing assessment or clinical judgment. Choice B involves assessment, which requires the nurse's clinical judgment. Choice C involves recording client goals during staff rounds, which may require interpretation and understanding of the goals set. Choice D involves evaluating a client's pain following medication administration, which requires assessment and clinical judgment by a nurse.

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