A nurse is reviewing the lab results and electrocardiogram (ECG) of a patient with End Stage Renal Disease (ESRD). The nurse correlates which ECG finding to a potassium level of 6.8?
Prolonged PR interval
Presence of a U wave
Peaked T waves
Elevated ST segment
The Correct Answer is C
A. A prolonged PR interval can be seen in hyperkalemia but is not as characteristic as peaked T waves.
B. A U wave is typically seen in hypokalemia, not hyperkalemia.
C. Peaked T waves are a hallmark ECG finding in hyperkalemia and occur due to increased repolarization speed.
D. ST segment elevation is more commonly associated with myocardial infarction rather than hyperkalemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Hypertensive crisis is not a direct complication of atrial fibrillation. It is typically caused by uncontrolled hypertension rather than arrhythmias.
B. Cardiogenic shock can occur in severe heart failure but is not a primary complication of atrial fibrillation.
C. Embolic cerebral vascular accident (stroke) is a major risk for clients with atrial fibrillation. The irregular atrial contractions allow blood to pool in the atria, increasing the risk of clot formation. If a clot dislodges, it can travel to the brain and cause a stroke.
D. Flash pulmonary edema is a complication of acute decompensated heart failure but is not directly caused by atrial fibrillation.
Correct Answer is B
Explanation
A. A blood pressure of 110/70 and heart rate of 90 is within normal limits and does not indicate an immediate complication.
B. Swelling at the insertion site and a cool extremity suggest arterial occlusion or hematoma formation, which is a serious complication requiring immediate intervention. This may indicate impaired blood flow to the limb.
C. Oozing blood from the site may require monitoring and pressure application but is not as concerning as signs of arterial compromise.
D. Not voiding post-procedure can be due to bedrest or IV contrast, but it is not an urgent concern.
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