Nursing Elites

1. What ECG changes are seen with hyperkalemia?

• A. Flattened T waves
• B. Elevated ST segments
• C. Prominent U waves
• D. Widened QRS complex

Correct answer: A

Rationale: Flattened T waves are an early ECG sign of hyperkalemia. Hyperkalemia affects the repolarization phase of the cardiac action potential, leading to changes such as peaked T waves, prolonged PR interval, widened QRS complex, and ultimately sine wave pattern. Elevated ST segments, prominent U waves, and widened QRS complex are not typically associated with hyperkalemia, making choices B, C, and D incorrect.

2. A client is to undergo a liver biopsy. Which of the following instructions should the nurse provide to the client following the procedure?

• A. Lie on your left side.
• B. Lie on your right side.
• C. Increase your fluid intake.
• D. Decrease your fluid intake.

Correct answer: B

Rationale: After a liver biopsy, the nurse should instruct the client to lie on the right side. This position helps apply pressure to the biopsy site, promoting hemostasis and reducing the risk of bleeding. Lying on the left side may not provide adequate pressure to the site. Increasing fluid intake is generally beneficial to prevent dehydration and aid in the recovery process, whereas decreasing fluid intake could lead to dehydration and possible complications. Therefore, the correct instruction is to lie on the right side.

3. What should be the priority action when a patient is admitted with chest pain from acute coronary syndrome?

• A. Administer sublingual nitroglycerin
• B. Obtain IV access
• C. Check cardiac enzymes
• D. Administer aspirin

Correct answer: A

Rationale: The correct answer is to administer sublingual nitroglycerin. This is the priority action in treating chest pain associated with acute coronary syndrome as it helps to dilate blood vessels, improve blood flow to the heart, and reduce cardiac tissue damage. Administering nitroglycerin is crucial in managing the symptoms and potential complications of acute coronary syndrome. Obtaining IV access (Choice B) is important for administering medications and fluids but does not address the immediate symptom of chest pain. Checking cardiac enzymes (Choice C) and administering aspirin (Choice D) are essential steps in the management of acute coronary syndrome, but they should follow the administration of nitroglycerin to address the immediate symptom and improve blood flow to the heart.

4. What medication should be given first to a patient experiencing wheezing and coughing due to an allergic reaction?

• A. Albuterol 3 ml via nebulizer
• B. Cromolyn via nebulizer
• C. Aminophylline IV
• D. Methylprednisolone 100 mg IV

Correct answer: A

Rationale: The correct answer is Albuterol 3 ml via nebulizer. Albuterol is a bronchodilator that helps relieve wheezing and coughing by opening up the airways, making it the first-line treatment for allergic reactions presenting with these symptoms. Cromolyn and aminophylline are not typically used as first-line treatments for acute allergic reactions with wheezing and coughing. Methylprednisolone, a corticosteroid, may be beneficial for inflammation in the setting of an allergic reaction but is not the initial medication of choice to address wheezing and coughing.

5. What are the expected changes on an ECG for a patient with hypokalemia?

• A. Flattened T waves
• B. Prominent U waves
• C. ST elevation
• D. Wide QRS complexes

Correct answer: A

Rationale: Flattened T waves are an early sign of hypokalemia on an ECG. Hypokalemia primarily manifests as flattened T waves on an ECG. While prominent U waves can be seen in hypokalemia, they are not as specific as flattened T waves. ST elevation is more commonly associated with conditions like myocardial infarction rather than hypokalemia. Wide QRS complexes are typically not a feature of hypokalemia on an ECG.

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