Nursing Elites

1. Which client requires careful nursing assessment for signs and symptoms of hypomagnesemia?

• A. A young adult client with intractable vomiting from food poisoning
• B. A client who developed hyperparathyroidism in late adolescence
• C. A middle-aged male client in renal failure following an unsuccessful kidney transplant
• D. A female client who is overzealous with her intake of simple carbohydrates

Correct answer: A

Rationale: The correct answer is A. Vomiting can lead to significant loss of magnesium, causing hypomagnesemia. In this scenario, the young adult client with intractable vomiting from food poisoning is at higher risk of developing hypomagnesemia due to the loss of magnesium through vomiting. Choices B, C, and D are less likely to present with hypomagnesemia. Hyperparathyroidism (B) is associated with hypercalcemia, renal failure (C) can lead to hypermagnesemia, and overconsumption of simple carbohydrates (D) is not directly linked to magnesium imbalances.

2. For a client with pneumonia, the prescription states, “Oxygen at liters/min per nasal cannula PRN difficult breathing.” Which nursing intervention is effective in preventing oxygen toxicity?

• A. Avoiding the administration of oxygen at high levels for extended periods.
• B. Administering a sedative at bedtime to slow the client’s respiratory rate.
• C. Removing the nasal cannula during the night to prevent oxygen buildup.
• D. Running oxygen through a hydration source prior to administration.

Correct answer: A

Rationale: Choice A is the correct answer because prolonged exposure to high levels of oxygen can lead to oxygen toxicity. Administering oxygen at high levels for extended periods can overwhelm the body's natural defenses against high oxygen levels, causing toxicity. Choices B, C, and D are incorrect. Choice B is unrelated to preventing oxygen toxicity. Choice C is unsafe as removing the nasal cannula can deprive the client of necessary oxygen. Choice D, running oxygen through a hydration source, is not a standard practice for preventing oxygen toxicity.

3. A client with a large pleural effusion undergoes a thoracentesis. Following the procedure, which assessment finding warrants immediate intervention by the nurse?

• A. The client has asymmetrical chest wall expansion
• B. The client complains of pain at the insertion site
• C. The client's chest x-ray indicates decreased pleural effusion
• D. The client's arterial blood gases show pH 7.35, PaO2 85, PaCO2 35, HCO3 26

Correct answer: A

Rationale: Asymmetrical chest wall expansion is a critical finding post-thoracentesis as it may suggest a pneumothorax, requiring immediate intervention to prevent further complications. The other options, such as pain at the insertion site (Choice B), decreased pleural effusion on chest x-ray (Choice C), and normal arterial blood gases within acceptable ranges (Choice D) do not indicate an immediate need for intervention like asymmetrical chest wall expansion does.

4. While changing a client’s chest tube dressing, the nurse notes a crackling sensation when gentle pressure is applied to the skin at the insertion site. What is the best action for the nurse to take?

• A. Apply a pressure dressing around the chest tube insertion site
• B. Assess the client for allergies to topical cleaning agents
• C. Measure the area of swelling and crackling
• D. Administer an oral antihistamine per PRN protocol

Correct answer: A

Rationale: A crackling sensation indicates subcutaneous emphysema, caused by air trapped under the skin. Applying a pressure dressing around the chest tube insertion site can help manage the issue by preventing further air leakage into the tissues. Choice B is incorrect because the crackling sensation is not related to allergies. Choice C is incorrect as measuring the area does not address the underlying cause. Choice D is incorrect as administering an oral antihistamine is not indicated for subcutaneous emphysema.

5. An older male client with a history of type 1 diabetes has not felt well for the past few days and arrives at the clinic with abdominal cramping and vomiting. He is lethargic, moderately confused, and cannot remember when he took his last dose of insulin or ate last. What action should the nurse implement first?

• A. obtain a serum potassium level
• B. administer the client's usual dose of insulin
• C. assess pupillary response to light
• D. Start an intravenous (IV) infusion of normal saline

Correct answer: D

Rationale: Administering IV fluids is crucial to address potential dehydration and electrolyte imbalances, especially if the client is unable to provide a clear history. Starting an IV infusion of normal saline will help rehydrate the client and address any electrolyte imbalances, which are common in clients with diabetes experiencing symptoms like abdominal cramping and vomiting. Obtaining a serum potassium level can be important but is not the priority when the client is showing signs of dehydration and confusion. Administering insulin should only be done after addressing hydration and electrolyte status. Assessing pupillary response to light is not the most critical action in this situation compared to addressing dehydration and potential electrolyte imbalances.

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