Lab Value WBC RBC Hgb HCT PLT MCV RDW Retic ANC
Normal Range (4.0-10.5 K/uL) (4.10-5.30 M/uL) (12-15g/dL) (35.0-47.0%) (150-400 K/uL) (78-95 FL) (11.5-14.5%) (0.5-2.2%) (>1,500 cells/uL)
Dose of Piperacillin-Tazobactam Date (day of therapy) Time                  
2.25 g q8h START 4/15(1) 14:20 7.5 3.32 9.2 26.6 522 79.9 12   4,950
2.25 g q8h 4/18 (4) 14:22 6.6 3.24 8.8 25.9 451 79.9 12.1   3,960
2.25 g q8h 4/20 (6) 23:45 8.9 2.92 8.1 22.9 362 78.4 12.5    
3.375 g q6h 4/21 (7) 7:15 5.7 3.09 8.1 24.7 375 79.8 12.5    
3.375 g q6h 4/22 (8) 5:45 6.4 1.9 5.2* 15.2 274 79.9 12.5    
3.375 g q6h 4/22 (8) 8:51 6.2 2.71 7.2 21.5 319 79.4 12.5    
3.375 g q6h 4/23 (9) 13:41 3.6 2.84 7.9 21.7 209 76.6 12.6   2,412
3.375 g q6h 4/24 (10) 19:25 3.5 2.45 6.7 18.8 280 76.8 12.7   2,100
3.375 g q6h STOP 4/25 (11) 14:05 4.2 2.91 7.4 22.2 134 76.3 13 1.3  
  4/30 6:30 6.6 3.3 8.5 26 497 78.7 14.3   4,290
  5/3 12:19 4.5 2.67 6.9 21 434 78.5 14.7   2,565
  5/4 7:39 4 3.11 8 24.2 364 78 14.7   2,240
  5/5 4:45 4.3 3.12 8.1 24.5 385 78.6 14.8   2,322
  5/7 2:45 4.9 3.1 7.8 24.1 359 77.7 14.7   2,499
Table 1: Complete blood counts and indices.