Table 1. Laboratory Data.*.
| Variable | Reference Range, Adults† |
On Admission |
|---|---|---|
| Hemoglobin (g/dl) | 12.0–16.0 | 13.2 |
| Hematocrit (%) | 36.0–46.0 | 38.2 |
| Platelet count (per μl) | 150,000–450,000 | 174,000 |
| White-cell count (per μl) | 4500–11,000 | 6660 |
| Differential count (per μl) | ||
| Neutrophils | 1800–7700 | 5030 |
| Lymphocytes | 1000–4800 | 1570 |
| Monocytes | 200–1200 | 60 |
| Urea nitrogen (mg/dl) | 8–25 | 3 |
| Creatinine (mg/dl) | 0.60–1.50 | 0.55 |
| Alanine aminotransferase (U/liter) | 7–33 | 28 |
| Aspartate aminotransferase (U/liter) | 9–32 | 34 |
| Lactate dehydrogenase (U/liter) | 110–210 | 318 |
| Creatine kinase (U/liter) | 40–150 | 154 |
| High-sensitivity troponin T (ng/liter) | 0–9 | <6 |
| Ferritin (μg/liter) | 10–200 | 267 |
| d-dimer (ng/ml) | <500 | 551 |
| C-reactive protein (mg/liter) | <8.0 | 51.1 |
| Serum toxicology tests | ||
| Acetaminophen (μg/ml) | 0.0–25.0 | 8.7 |
| Ethanol (mg/dl) | 0 | 0 |
| Salicylates (mg/dl) | 0.0–20.0 | <0.3 |
| Tricyclic antidepressants | Negative | Negative |
| Urine toxicology tests | ||
| Amphetamines | Negative | Negative |
| Barbiturates | Negative | Negative |
| Benzodiazepines | Negative | Negative |
| Cannabinoids | Negative | Negative |
| Cocaine metabolites | Negative | Negative |
| Opiates | Negative | Negative |
*
To convert the values for urea nitrogen to millimoles per liter, multiply by 0.357. To convert the values for creatinine to micromoles per liter, multiply by 88.4.
†
Reference values are affected by many variables, including the patient population and the laboratory methods used. The ranges used at Massachusetts General Hospital are for adults who are not pregnant and do not have medical conditions that could affect the results. They may therefore not be appropriate for all patients.