Nursing Elites

1. What is the first step in using an automated external defibrillator (AED) on a patient who has collapsed?

• A. Apply the pads to the chest
• B. Turn on the AED and follow the voice prompts
• C. Check the patient's pulse
• D. Ensure the area is clear before delivering a shock

Correct answer: B

Rationale: The correct answer is B: Turn on the AED and follow the voice prompts. This is the first step in using an AED as the device will guide you through the process of analyzing the heart rhythm and delivering a shock if necessary. Choice A, applying the pads to the chest, comes after turning on the AED. Checking the patient's pulse (Choice C) is not necessary before using an AED as the device is specifically designed to assess the need for defibrillation. Ensuring the area is clear (Choice D) is important for safety but is not the initial step in using an AED.

2. What is the primary role of the sinoatrial (SA) node in the heart?

• A. Pacemaker of the heart
• B. Blood pressure regulation
• C. Electrical conduction delay
• D. Stimulating muscle contraction

Correct answer: A

Rationale: The correct answer is A: Pacemaker of the heart. The SA node, known as the natural pacemaker, initiates the electrical impulses that set the rhythm for the heartbeat. It is responsible for coordinating the heart's contractions by generating electrical signals at regular intervals. Choice B is incorrect as the SA node's primary function is not related to blood pressure regulation. Choice C is incorrect as the SA node does not cause electrical conduction delay but rather initiates and conducts the electrical impulses. Choice D is incorrect as the SA node does not directly stimulate muscle contraction but rather initiates the electrical events that lead to muscle contraction.

3. What is the primary cause of diabetic ketoacidosis (DKA)?

• A. Insulin deficiency
• B. Overhydration
• C. Excess carbohydrate intake
• D. Excess insulin

Correct answer: A

Rationale: The correct answer is A: Insulin deficiency. Diabetic ketoacidosis occurs due to a severe lack of insulin, causing the body to break down fat for energy, leading to the production of ketones and acidification of the blood. Option B, Overhydration, is incorrect as DKA is characterized by dehydration rather than overhydration. Option C, Excess carbohydrate intake, is incorrect because while high blood sugar levels can contribute to DKA, the primary cause is insulin deficiency. Option D, Excess insulin, is also incorrect as DKA is not caused by an excess of insulin but rather by a lack of it.

4. A client who had a right total shoulder replacement is being prepared for discharge. What should the nurse emphasize to the client to prevent complications?

• A. Avoid lifting objects with the right arm until cleared by the surgeon.
• B. Perform shoulder exercises to regain strength.
• C. Use a sling at all times, even during sleep.
• D. Apply heat to the shoulder to reduce stiffness.

Correct answer: A

Rationale: The correct answer is to avoid lifting objects with the right arm until cleared by the surgeon. After a total shoulder replacement, it is essential to protect the new joint to prevent dislocation or injury. Lifting heavy objects prematurely can lead to complications. While performing shoulder exercises is important for strength, they should be done as per the healthcare provider's instructions to avoid strain on the new joint. Using a sling at all times, as in choice C, is not necessary once the client has regained enough strength and mobility. Applying heat, as in choice D, may not be recommended post-surgery; cold therapy is often preferred to reduce swelling and pain.

5. What intervention should the PN implement when taking the rectal temperature of an adult client?

• A. Lubricate the tip of the thermometer with a water-based gel.
• B. Gently insert the thermometer 1 inch into the rectum.
• C. Hold the thermometer in place the entire time while taking the temperature.
• D. Place the client in the left lateral position.

Correct answer: C

Rationale: When taking a rectal temperature, it is essential to hold the thermometer in place the entire time to ensure safety, accuracy, and prevent the thermometer from slipping out. Choice A, lubricating the tip of the thermometer with a water-based gel, is important for comfort and ease of insertion. Choice B, gently inserting the thermometer 1 inch into the rectum, is more accurate for adults than inserting it 3 inches. Choice D, placing the client in the left lateral position, is not necessary for a rectal temperature measurement.

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