Nursing Elites

1. Which of the following is the most effective way to prevent the spread of infection in a healthcare setting?

• A. Using sterile gloves
• B. Wearing a face mask
• C. Performing hand hygiene
• D. Using disposable equipment

Correct answer: C

Rationale: Performing hand hygiene is the most effective way to prevent the spread of infection in a healthcare setting. Hand hygiene helps remove pathogens that could be transmitted through direct contact, making it a crucial practice in infection control. While using sterile gloves and disposable equipment are important in certain situations, they do not address the potential transmission of pathogens through direct contact, unlike hand hygiene. Wearing a face mask is important for respiratory precautions but may not be as effective as hand hygiene in preventing the spread of infections through direct contact.

2. Which electrolyte imbalance is most likely to cause cardiac arrhythmias?

• A. Hyperkalemia
• B. Hypocalcemia
• C. Hypernatremia
• D. Hypokalemia

Correct answer: A

Rationale: Hyperkalemia is the correct answer as it can lead to dangerous cardiac arrhythmias due to its effects on the electrical conduction of the heart. High levels of potassium can disrupt the normal electrical activity of the heart, potentially leading to life-threatening arrhythmias. Hypocalcemia (choice B) is not the most likely cause of cardiac arrhythmias compared to hyperkalemia. Hypernatremia (choice C), referring to high sodium levels, is not directly associated with causing cardiac arrhythmias. While hypokalemia (choice D), low potassium levels, can also lead to cardiac arrhythmias, hyperkalemia is the more likely culprit in causing severe disturbances in heart rhythm.

3. Which condition is most commonly associated with a "bull's eye" rash?

• A. Lyme disease
• B. Rocky Mountain spotted fever
• C. Syphilis
• D. Toxoplasmosis

Correct answer: A

Rationale: The correct answer is A: Lyme disease. The "bull's eye" rash, or erythema migrans, is a hallmark of early Lyme disease, caused by the bacterium Borrelia burgdorferi. Choice B, Rocky Mountain spotted fever, presents with a different type of rash. Choice C, Syphilis, typically presents with a painless ulcer and rash but not a "bull's eye" rash. Choice D, Toxoplasmosis, does not typically present with a "bull's eye" rash.

4. A client post-thyroidectomy is being monitored for signs of hypocalcemia. Which of the following symptoms should the nurse be most concerned about?

• A. Tingling in the hands and around the mouth.
• B. Nausea and vomiting.
• C. Constipation.
• D. Bradycardia.

Correct answer: A

Rationale: The correct answer is A: Tingling in the hands and around the mouth. This symptom is a classic sign of hypocalcemia, which can occur after thyroidectomy if the parathyroid glands were inadvertently damaged during surgery. Nausea and vomiting (Choice B) are not specific to hypocalcemia. Constipation (Choice C) is not a typical symptom of hypocalcemia. Bradycardia (Choice D) is more commonly associated with hypothyroidism rather than hypocalcemia.

5. Which of the following is an appropriate intervention for a patient experiencing a hypertensive crisis?

• A. Placing the patient in a supine position
• B. Administering a beta-blocker intravenously
• C. Encouraging the patient to drink fluids
• D. Applying a cold compress to the forehead

Correct answer: B

Rationale: Administering a beta-blocker intravenously is the correct intervention for a patient experiencing a hypertensive crisis. Beta-blockers help quickly reduce blood pressure and prevent complications such as stroke or heart attack. Placing the patient in a supine position can worsen the condition by reducing venous return and increasing the workload of the heart. Encouraging the patient to drink fluids is not recommended as it can exacerbate hypertension by increasing fluid volume. Applying a cold compress to the forehead does not address the underlying cause of the hypertensive crisis and is unlikely to provide significant benefit.

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