ECG library
Hypercalcemia: the short QT
advancedConfusion, constipation, and a calcium of 3.4 in a patient with myeloma.
25 mm/s · 10 mm/mV · synthetic tracing
100%
Calipers:2000 ms50.0 small boxes30 bpm if R-RDrag the orange markers. One small box = 40 ms.
Key findings
- Short QT with an abbreviated ST segment
- A clinical picture of stones, bones, groans, and moans
Learning points
- Calcium sets ST-segment length: high calcium shortens it, low calcium stretches it.
- The ECG change matters less than the cause: malignancy and hyperparathyroidism head the list.
Connected