Nursing Elites

1. A healthcare professional is reviewing a client's laboratory results. Which of the following values is a contraindication to the administration of heparin?

• A. Hemoglobin 13 g/dL
• B. Platelet count 50,000/mm³
• C. White blood cell count 6,000/mm³
• D. INR 2.5

Correct answer: B

Rationale: The correct answer is B: Platelet count 50,000/mm³. A platelet count of 50,000/mm³ increases the risk of bleeding, making heparin contraindicated. Platelets are essential for blood clotting, and a low count can lead to excessive bleeding. Choices A, C, and D are not contraindications to heparin administration. Hemoglobin level of 13 g/dL is within the normal range, white blood cell count of 6,000/mm³ is also normal, and an INR of 2.5 is within the therapeutic range for patients receiving heparin therapy.

2. What is the priority intervention for a patient with a severe allergic reaction?

• A. Administer epinephrine
• B. Administer corticosteroids
• C. Administer oxygen
• D. Administer antihistamines

Correct answer: A

Rationale: The correct answer is to administer epinephrine. Epinephrine is the first-line treatment for severe allergic reactions because it rapidly reverses the symptoms of anaphylaxis by constricting blood vessels, increasing heart rate, and relaxing airway muscles. Corticosteroids, although helpful to reduce inflammation, are not the priority in the acute management of severe allergic reactions. Oxygen may be needed to support breathing, but it is not the initial priority. Antihistamines are not as effective as epinephrine in treating severe allergic reactions and should not be the first intervention.

3. A nurse in an emergency department is caring for a client who reports cocaine use 1 hour ago. Which of the following findings should the nurse expect?

• A. Hypotension.
• B. Memory loss.
• C. Slurred speech.
• D. Elevated temperature.

Correct answer: D

Rationale: The correct answer is D: Elevated temperature. Cocaine is a stimulant drug that can lead to increased body temperature. Hypotension (Choice A) is less likely as cocaine tends to elevate blood pressure. Memory loss (Choice B) and slurred speech (Choice C) are more commonly associated with depressant drugs rather than stimulant drugs like cocaine.

4. How should a healthcare professional prepare a patient for a colonoscopy?

• A. Provide clear instructions on diet
• B. Explain the procedure in detail
• C. Ensure the patient has an empty stomach
• D. Give a bowel prep solution

Correct answer: D

Rationale: Giving a bowel prep solution is essential to clean out the colon thoroughly before a colonoscopy. This process is crucial as it helps to achieve a clear view of the colon during the procedure. Providing clear instructions on diet (Choice A) and ensuring the patient has an empty stomach (Choice C) are important steps in the preparation process but may not be sufficient on their own to adequately cleanse the colon. Explaining the procedure in detail (Choice B) is helpful for patient education but does not directly contribute to the physical preparation required for a successful colonoscopy.

5. Which of the following is a sign of digoxin toxicity?

• A. Bradycardia
• B. Hypertension
• C. Tachycardia
• D. Tachypnea

Correct answer: A

Rationale: The correct answer is A, Bradycardia. Bradycardia, or a slower than normal heart rate, is a classic sign of digoxin toxicity. Digoxin is a medication commonly used to treat heart conditions, but an excess of digoxin in the body can lead to toxicity. This toxicity can manifest as various symptoms, with bradycardia being one of the most common ones. Hypertension (high blood pressure) and tachycardia (fast heart rate) are not typical signs of digoxin toxicity. Tachypnea, which refers to rapid breathing, is also not a common sign of digoxin toxicity.

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