Nursing Elites

1. What is the proper technique for obtaining a blood specimen from a central venous line?

• A. Use sterile gloves and discard the first 10 mL of blood
• B. Flush the line with heparin and then draw the specimen
• C. Draw the specimen and then administer heparin
• D. Use non-sterile gloves to reduce contamination risk

Correct answer: A

Rationale: The correct technique for obtaining a blood specimen from a central venous line is to use sterile gloves and discard the first 10 mL of blood. This practice helps ensure that the blood sample collected is not contaminated. Choice B is incorrect because flushing the line with heparin before drawing the specimen can contaminate the sample. Choice C is incorrect as administering heparin before drawing the specimen can affect the accuracy of the blood sample. Choice D is incorrect as using non-sterile gloves increases the risk of contamination, which is not recommended when obtaining a blood specimen from a central venous line.

2. A client has an NG tube that needs irrigation every 8 hours. Which solution should be used to irrigate the tube to maintain fluid and electrolyte balance?

• A. Tap water
• B. Sterile water
• C. 0.9% sodium chloride
• D. 0.45% sodium chloride

Correct answer: C

Rationale: The correct answer is 0.9% sodium chloride. This solution is isotonic and helps maintain electrolyte balance during irrigation, preventing fluid and electrolyte imbalances. Tap water (choice A) may cause electrolyte imbalances due to its hypotonic nature. Sterile water (choice B) is hypotonic and can lead to electrolyte disturbances. 0.45% sodium chloride (choice D) is hypotonic and may also disrupt electrolyte balance when used for irrigation.

3. A client is prescribed simvastatin. Which instruction should the nurse provide during teaching?

• A. Take this medication in the morning.
• B. Avoid drinking grapefruit juice.
• C. Increase your intake of leafy green vegetables.
• D. Monitor your pulse daily while taking this medication.

Correct answer: B

Rationale: The correct answer is B: 'Avoid drinking grapefruit juice.' Grapefruit juice can increase the risk of toxicity when taken with simvastatin. Instructing the client to avoid grapefruit juice helps prevent this interaction. Choice A is incorrect because the timing of medication administration for simvastatin is usually in the evening. Choice C is unrelated to simvastatin therapy. Choice D is not necessary for monitoring while taking simvastatin.

4. When should a healthcare provider suction a client's tracheostomy?

• A. When the client is hypotensive
• B. When the client is irritable
• C. When the client is flushed
• D. When the client is bradycardic

Correct answer: B

Rationale: Irritability is an early sign that suctioning is required to clear secretions in a client with a tracheostomy. Hypotension, flushing, and bradycardia are not direct indicators for suctioning a tracheostomy. Hypotension may indicate a need for fluid resuscitation or other interventions, flushing could be due to various reasons like fever, and bradycardia may require evaluation for cardiac causes.

5. A healthcare professional is contributing to the plan of care for a client who is receiving mechanical ventilation. Which of the following interventions should the healthcare professional recommend?

• A. Suction the airway every hour
• B. Keep the head of the bed at 30 degrees
• C. Change the ventilator tubing every day
• D. Administer a bronchodilator every 2 hours

Correct answer: B

Rationale: The correct answer is to keep the head of the bed at 30 degrees. This position helps reduce the risk of aspiration and improves ventilation. Suctioning the airway every hour may lead to mucosal damage and increase the risk of infection. Changing the ventilator tubing every day is not necessary unless there are specific indications to do so, as it can increase the risk of contamination and infection. Administering a bronchodilator every 2 hours is not a standard practice and should be done based on the client's individualized treatment plan.

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