| Potassium |
Hyperkalemia |
|
Hypokalemia |
| |
K= 5.5: T-waves became tall and peaked |
|
|
| |
K= 6.5: QRS changes start |
|
K< 2.7: U wave large U-wave or TU complex |
| |
K>7.0: P-waves decreased pwave amplitude |
|
Depress ion of ST segment >0.5mm |
| |
K>8.0 P-wave becomes invisible |
|
U-wave amplitude > 1.0 mm |
| |
K> 12: Vfib or asystole |
|
U-wave> Twave |
|
|
| Calcium |
|
|
|
| |
Hypercalcemia |
Hypocalcemia |
|
| |
Foreshortened ST segment
|
Long ST |
|
| |
QT inverval shortened (Qtc of less than 270ms is 90%
of the time related to hypercalcemia |
Long QTc |
|
| |
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