| Hematology Tests |  | 
| Hematocrit (Hct) | 40-52% (Male) | 
|  | 37-46% (Female) | 
|  | 31-43% (Child) | 
| Hemoglobin (Hgb) | 13.2-16.2 gm/dL (Male) | 
|  | 12.0-15.2 gm/dL (Female) | 
| Red Blood Cell Count (RBC) | 4.3-6.2x106/µL (Male) | 
|  | 3.8-5.5x106/µL (Female) | 
|  | 3.8-5.5x106/µL (Infant/Child) | 
| White Blood Cell Count (WBC) | 4.1-10.9x103/µL | 
|  |  | 
| 
Diff
   |  | 
| Polymorphonuclear Cells
  (polys) | 35-80% | 
| Immature Polys (bands) | 0-10% | 
| lymphocytes
  (lymp) | 20-50% | 
| monocytes (mono) | 2-12% | 
| eosinophils
  (eos) | 0-7% | 
| basophils (bas) | 0-2% | 
| Platelet Count
  (Plt) | 140-450x103/µL | 
| 
 |  | 
| Red Cell Distribution Width (RDW) |  | 
|           Coefficient of variation | 11.5-14.5% | 
| standard deviation | 35-47 fL | 
|  |  | 
| RBC Mean Cell Volume (MCV) | 82-102 fL (Male) | 
|  | 78-101 fL (Female) | 
| Mean Cell Hgb Concentration (MCHC) | 31-35 gm/dL | 
| CD4+ | 31-63% | 
|  | 416-1751/µL (Absolute #) | 
| Reticulocyte | 0.5-1.5% (Adult) | 
|  | 1.1-4.5% (Newborn) | 
|  | 0.5-3.1% (Infant) | 
| Prothrombin Time (PT) | 12-14 seconds | 
| Partial Thromboplastin Time (PTT) | 18-28 seconds | 
| Fibrinogen | 170-420 mg/dL | 
|  |  | 
| Iron Studies |  | 
| Total Serum Iron (TSI) | 76-198 µg/dL (Male) | 
|  | 26-170 µg/dL (Female) | 
| Total Iron-Binding Capacity (TIBC) | 262-474 µg/dL | 
| Transferrin | 204-360 mg/dL | 
| Ferritin | 18-250 ng/mL (Male) | 
|  | 12-160 ng/mL (Female) |