Table 7.
Frequency of abnormal laboratory values and chart findings suggestive of TMA by renal pathology
| Finding | N | Definition 1 (n, %)a | Definition 2 (n, %)b |
|---|---|---|---|
| Pathology | |||
| negative | 71 | 18 (25) | 39 (55) |
| TMA | 30 | 11 (37) | 22 (73) |
| Isolated | 18 | 6 (33) | 14 (78) |
| Chart | |||
| negative | 99 | 27 (27) | 58 (59) |
| positive | 16 | 8 (50) | 14 (88) |
a
Definition 1: hematocrit < 30, platelet count < 100,000, LDH above the upper limits of normal and a 50% increase in the baseline serum creatinine, in a single day's measurements.
b
Definition 2: hematocrit < 30, platelet count < 100,000, LDH above the upper limits of normal, and a 50% increase in the serum baseline creatinine, each occurring at least once over the 2 wk measurements.