Nursing Elites

1. A patient diagnosed with hypokalemia is at risk for which condition?

• A. Cardiac dysrhythmias
• B. Muscle weakness
• C. Seizures
• D. Bradycardia

Correct answer: A

Rationale: Patients diagnosed with hypokalemia are at risk for cardiac dysrhythmias due to low potassium levels. Hypokalemia can lead to abnormalities in the electrical conduction system of the heart, potentially causing irregular heart rhythms. Muscle weakness (Choice B) is a symptom commonly associated with hypokalemia, but the question asks about conditions the patient is at risk for, not specific symptoms. Seizures (Choice C) are not typically associated with hypokalemia; they are more commonly linked with conditions such as epilepsy. Bradycardia (Choice D) refers to a slow heart rate, which is not a typical risk associated with hypokalemia; instead, tachycardia (fast heart rate) is more commonly observed in patients with low potassium levels.

2. A patient who received an enema reports abdominal cramping. What should the nurse do?

• A. Increase the flow of the enema solution
• B. Lower the height of the enema solution container
• C. Remove the enema tubing
• D. Stop the procedure

Correct answer: B

Rationale: When a patient who received an enema reports abdominal cramping, the nurse should lower the height of the enema solution container. This adjustment can help reduce the cramping by slowing down the flow of the solution into the colon, allowing the patient to tolerate the procedure better. Increasing the flow of the solution (Choice A) can exacerbate the cramping. Removing the enema tubing (Choice C) or stopping the procedure (Choice D) may not address the issue and could lead to incomplete treatment.

3. What is a characteristic sign of hypokalemia on an ECG?

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

Correct answer: A

Rationale: Flattened T waves are a characteristic sign of hypokalemia on an ECG. When potassium levels are low, it can lead to changes in the ECG, such as T wave flattening. This alteration is important to recognize as it indicates potential electrolyte imbalances. ST elevation (Choice B) is not typically associated with hypokalemia but can be seen in conditions like myocardial infarction. Prominent U waves (Choice C) are associated with hypokalemia, but flattened T waves are more specific. Widened QRS complex (Choice D) is not a typical ECG finding in hypokalemia but can be seen in conditions like hyperkalemia.

4. 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.

5. What is the initial action for treating chest pain in acute coronary syndrome?

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

Correct answer: A

Rationale: The correct initial action for treating chest pain in acute coronary syndrome is to administer sublingual nitroglycerin. Nitroglycerin helps dilate blood vessels, reducing the workload on the heart and improving blood flow to the heart muscle. Administering aspirin can also be beneficial, but the priority is to address chest pain promptly. Checking cardiac enzymes and obtaining IV access are important steps but are not the initial actions needed to alleviate chest pain in acute coronary syndrome.

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