Nursing Elites

1. What ECG changes should be monitored in a patient with hypokalemia?

• A. Flattened T waves and prominent U waves
• B. Elevated ST segments and wide QRS complexes
• C. Tall T waves and flattened QRS complexes
• D. Widened QRS complexes and decreased P wave amplitude

Correct answer: A

Rationale: The correct answer is A: Flattened T waves and prominent U waves. In hypokalemia, there is a decrease in potassium levels, which can lead to ECG changes such as flattened T waves and prominent U waves. These changes are classic findings associated with hypokalemia. Choices B (Elevated ST segments and wide QRS complexes), C (Tall T waves and flattened QRS complexes), and D (Widened QRS complexes and decreased P wave amplitude) are all incorrect. Elevated ST segments and wide QRS complexes are not typically seen in hypokalemia. Tall T waves and flattened QRS complexes, as well as widened QRS complexes and decreased P wave amplitude, do not represent the typical ECG changes seen in hypokalemia.

2. 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.

3. A nurse is assessing a client who has a heart rate of 40/min. The client is diaphoretic and has chest pain. Which of the following medications should the nurse plan to administer?

• A. Lidocaine
• B. Adenosine
• C. Atropine
• D. Verapamil

Correct answer: C

Rationale: The correct answer is C: Atropine. The client's presentation of bradycardia, diaphoresis, and chest pain indicates reduced cardiac output, requiring intervention to increase the heart rate. Atropine is used to treat bradycardia by blocking cardiac muscarinic receptors, thus inhibiting the parasympathetic nervous system. Lidocaine (Choice A) is used for ventricular arrhythmias, not bradycardia. Adenosine (Choice B) is used for supraventricular tachycardia, not bradycardia. Verapamil (Choice D) is a calcium channel blocker used for certain arrhythmias and hypertension, but not for increasing heart rate in bradycardia.

4. 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.

5. A patient reports abdominal cramping after enema administration. What action should the nurse take to relieve the discomfort?

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

Correct answer: A

Rationale: The correct action to relieve abdominal cramping after enema administration is to lower the height of the solution container. This adjustment slows down the flow rate of the enema solution, which can help reduce discomfort by decreasing the pressure on the patient's abdomen. Increasing the flow of the enema solution (Choice B) would exacerbate the cramping by introducing more solution quickly. Removing the enema tubing (Choice C) is not necessary to address the cramping, and stopping the procedure (Choice D) may not be needed if adjusting the height of the solution container can resolve the issue.

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