Nursing Elites

1. A nurse is reviewing the results of an arterial blood gas analysis of a client who has chronic obstructive pulmonary disease. Which of the following results should the nurse expect?

• A. PaO2 of 95 mm Hg
• B. PaCO2 of 55 mm Hg
• C. HCO3 of 24 mEq/L
• D. pH level of 7.35

Correct answer: B

Rationale: In chronic obstructive pulmonary disease, there is impaired gas exchange, leading to retention of carbon dioxide (CO2) and subsequent respiratory acidosis. A PaCO2 of 55 mm Hg is higher than the normal range (35-45 mm Hg) and is indicative of respiratory acidosis in COPD. Choices A, C, and D are not typically associated with COPD. PaO2 may be decreased, HCO3 may be elevated to compensate for acidosis, and pH may be lower than 7.35 due to respiratory acidosis in COPD.

2. A healthcare professional is reviewing the medical record of a client scheduled for a CT scan with contrast media. The healthcare professional should identify which of the following findings as a contraindication to the procedure?

• A. White blood cell count of 6,000/mm³
• B. Urine specific gravity of 1.025
• C. History of asthma
• D. History of allergy to shellfish

Correct answer: D

Rationale: The correct answer is D, a history of allergy to shellfish. A known allergy to shellfish is a contraindication for the use of contrast media in a CT scan due to the potential risk of an allergic reaction, which could be severe and life-threatening. Choices A, B, and C are not contraindications to the procedure. A normal white blood cell count, urine specific gravity within the normal range, and a history of asthma do not typically interfere with the administration of contrast media for a CT scan.

3. A nurse is providing discharge teaching to a client who is postoperative following a mastectomy. Which of the following instructions should the nurse include?

• A. Avoid using deodorant until the incision heals.
• B. Perform arm exercises 24 hours after surgery.
• C. Wear tight-fitting clothing to support the incision.
• D. Perform arm exercises 2 days after surgery.

Correct answer: A

Rationale: The correct instruction for the nurse to include is to advise the client to avoid using deodorant until the incision heals. Using deodorant can lead to skin irritation, which should be prevented following a mastectomy. Choice B is incorrect because performing arm exercises should typically be delayed until recommended by the healthcare provider to prevent strain on the surgical site. Choice C is incorrect as tight-fitting clothing can increase discomfort and hinder proper healing. Choice D is also incorrect because initiating arm exercises should be based on the healthcare provider's guidance and not a specific timeframe.

4. A client with a nasogastric tube receiving continuous enteral feedings is at risk for aspiration. Which of the following actions should the nurse take to prevent aspiration?

• A. Elevate the head of the bed to 15 degrees
• B. Check gastric residual volumes every 6 hours
• C. Monitor the pH of gastric aspirate
• D. Instill 10 mL of air into the tube before feeding

Correct answer: B

Rationale: Checking gastric residual volumes every 6 hours is essential in preventing aspiration in clients receiving continuous enteral feedings. This practice helps determine if the stomach is adequately emptying, reducing the risk of regurgitation and aspiration. Elevating the head of the bed to 30 degrees, not 15 degrees, is recommended to further prevent aspiration by reducing the risk of reflux. Monitoring the pH of gastric aspirate is important to assess tube placement but does not directly prevent aspiration. Instilling air into the tube before feeding is not a recommended practice and does not prevent aspiration.

5. 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.

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