ECG Question #9

Question

A nurse on the telemetry unit is caring for a client with a potassium of 5.6 mEq/L. The nurse anticipates changes in the ECG which would include the following finding:

Answers

1. A prolonged QT interval
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2. Delayed SA note impulse activity
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3. Peaked T waves
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4. Inverted U wave
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Overview

Explanation

A peaked T wave is represented as repolarization of the ventricles. Serum potassium levels may cause the T wave to become peaked and tall. An elevated serum potassium level does not prolong the QT interval, delay the impulse traveling from the SA node, or invert the U wave.

Learning Outcomes

Test Taking Tip

Video Rationale