Table 1.
Progressive reduction in QTc interval with rising serum calcium levels
| Day | Serum calcium (mg/dl) | QTc interval (ms) |
|---|---|---|
| 1 | 6.9 | 527 |
| 2 | 7.9 | 507 |
| 3 | 8.0 | 501 |
| 4 | 8.3 | 498 |
| 5 | 8.8 | 496 |
| 6 | 9.0 | 455 |
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