Correct!
5. All of the above
The T waves appear tall and peaked in leads V4 and V5 (Figure 3) although there is no standard definition for tall, peaked T waves.
Figure 3. Electrocardiogram showing possible tall, peaked T waves (red arrows).
In the this clinical setting considering hyperkalemia which causes tall, peaked T waves is reasonable. The patient's creatinine was 9.9 mg/dL and the potassium was 6.3 meq/L.
The IVC is nearly completed collapsed suggesting intravascular volume depletion (Figure 4A). There is bilateral hydronephrosis (Figures 4B and 4C).
Figure 4. Panel A: nearly collapsed inferior vena cava (IVC, yellow arrow). Panel B: left hydronephrosis (yellow arrow). Panel C: right hydronephrosis (yellow arrow).
Which of the following is (are) false regarding hyperkalemia? (Click on the correct answer to proceed to the next panel)