Nursing Elites

1. What ECG changes are expected in a patient with hypokalemia?

• A. Flattened T waves
• B. Prominent U waves
• C. Widened QRS complexes
• D. Tall T waves

Correct answer: A

Rationale: Flattened T waves are an early indicator of hypokalemia on an ECG. Hypokalemia primarily presents with flattened T waves, not prominent U waves, widened QRS complexes, or tall T waves. Prominent U waves are associated with hypokalemia only in severe cases. Widened QRS complexes are more indicative of hyperkalemia, while tall T waves are seen in hyperkalemia as well.

2. A nurse is teaching a client about using a continuous positive airway pressure (CPAP) device to treat obstructive sleep apnea. Which of the following information should the nurse include in the teaching?

• A. It delivers a preset amount of inspiratory pressure throughout the breathing cycle
• B. It has a continuous adjustment feature that changes the airway pressure throughout the cycle
• C. It delivers a preset amount of airway pressure throughout the breathing cycle
• D. It delivers positive pressure at the end of each breath

Correct answer: C

Rationale: The correct answer is C because a CPAP device delivers a preset amount of positive airway pressure continuously throughout all inspiration and expiration cycles. Choice A is incorrect because CPAP does not deliver inspiratory pressure at the beginning of each breath; it provides continuous positive pressure. Choice B is incorrect because CPAP typically delivers a constant pressure rather than having a feature that changes pressure throughout the cycle. Choice D is incorrect as CPAP does not deliver positive pressure specifically at the end of each breath; it maintains a consistent pressure throughout the breathing cycle.

3. What is the initial nursing action for a patient with chest pain and acute coronary syndrome?

• A. Administer sublingual nitroglycerin
• B. Check the patient's urine output
• C. Check cardiac enzymes
• D. Obtain IV access

Correct answer: A

Rationale: Administering sublingual nitroglycerin is the priority initial action for a patient with chest pain and acute coronary syndrome. Nitroglycerin helps vasodilate coronary arteries, improving blood flow to the heart muscle and reducing chest pain. Checking the patient's urine output (choice B) and cardiac enzymes (choice C) are important assessments but are not the first priority when managing acute chest pain. Obtaining IV access (choice D) is essential for administering medications and fluids, but administering sublingual nitroglycerin takes precedence in the initial management of chest pain in acute coronary syndrome.

4. What should be the first medication given for wheezing due to an allergic reaction?

• A. Albuterol via nebulizer
• B. Cromolyn via nebulizer
• C. Methylprednisolone IV
• D. Aminophylline 500 mg IV

Correct answer: A

Rationale: The correct answer is A, Albuterol via nebulizer. Albuterol is the first-line medication for treating wheezing caused by an allergic reaction as it works as a bronchodilator, helping to relieve the symptoms of wheezing and shortness of breath quickly. Cromolyn (choice B) is used more for preventing asthma symptoms rather than for immediate relief. Methylprednisolone IV (choice C) and Aminophylline 500 mg IV (choice D) are not the first-line treatments for wheezing due to an allergic reaction.

5. When providing discharge teaching to a patient who underwent cataract surgery, what should the patient avoid?

• A. Avoid NSAIDs
• B. Avoid bright lights
• C. Avoid alcohol
• D. Avoid phosphorus-rich foods

Correct answer: A

Rationale: The correct answer is to avoid NSAIDs. Nonsteroidal anti-inflammatory drugs (NSAIDs) can increase the risk of bleeding after cataract surgery due to their anticoagulant properties. Bright lights (choice B) are not contraindicated post-cataract surgery unless the patient experiences discomfort or sensitivity. Alcohol consumption (choice C) is generally not restricted after cataract surgery, but moderation is recommended. Phosphorus-rich foods (choice D) are not directly related to cataract surgery postoperative care.

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