ECG Case 4 Interpretation – Hypokalemia and Hypercalcemia

• The slow sinus P waves are conducted with a Prolonged PR Interval (can be caused by hypokalemia)
• There is Left Axis Deviation and probably LBBB (although V6 doesn’t look like LBBB)
• Q waves in V1 – V4 and slow R wave progression (could indicate old anterior MI)

• Prominent U waves in V2 – V5 (seen in hypokalemia)
• Shot QT Interval best seen in lateral and inferior leads (seen in hypercalcemia)

This man had widely metastatic prostate cancer, leading to Hypercalcemia.

Repetitive vomiting has resulted in Hypokalemia.

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• Hypokalemia ECG Changes
• ECG Interpretation