Table 1. Temporal relationship between laboratory values and potassium replacement.
The patient's laboratory values from the presentation at the emergency room, through his cardiac arrest, and then on a full resolution of hypokalemia in relation to the total amount of potassium received throughout the 36 hours of his initial care.
1 These are the point of care values and the first set of laboratory values in the ICU. 2 Potassium was reported as “slightly hemolyzed.”
pCO2, partial pressure of carbon dioxide.
| 10/14/20, 19:03 | 10/14/20, 20:351 | 10/14/20, 21:35 | 10/15/20, 01:48 | 10/15/20, 06:37 | 10/15/20, 09:38 | 10/16/20, 08:19 | |
| Sodium (mmol/L) | 131 | 139 | 142 | 143 | 149 | 147 | 163 |
| Potassium (mmol/L) | 2.7 | <2.0 | 2.32 | 2.1 | 2.2 | 1.92 | 4.2 |
| Chloride (mmol/L) | 95 | 114 | 113 | 121 | 123 | 133 | |
| Bicarbonate (mmol/L) | 5 | 4 | 4 | 7 | 6 | 14 | |
| Glucose (mg/dL) | 914 | 570 | 496 | 532 | 485 | 581 | 436 |
| Phosphorous (mg/dL) | 1.1 | 1.6 | 1.6 | 1.1 | 1 | ||
| Venous pH | 6.99 | 7.01 | 6.96 | 7.05 | 7.13 | 7.08 | 7.23 |
| Venous pCO2 | 16 | <15 | 20 | ||||
| Base excess (mmol/L) | −21 | −26 | |||||
| Insulin dose (u/kg/hr) | 0.04 | 0.1 | 0.03 | 0.05 | |||
| Cumulative potassium received (mEq) | 84.4 | 124.4 | 697.3 | ||||
| Patient events | ~2 hours before the arrest | Post-arrest |