Table 1.
Laboratory parameters.
| Variables | Result |
|---|---|
| Hemoglobin (g/dl) | 9.1 |
| Mean corpuscular volume (fl) | 111.2 |
| Packed cell volume (%) | 38.6 |
| Total leukocyte count (cells/μL) | 3500 |
| Differential count (%) | |
| Neutrophils | 54 |
| Lymphocyte | 37 |
| Platelets (cells/μL) | 126000 |
| Creatinine (mg/dl) | 0.43 |
| Sodium (mEq/L) | 137 |
| Potassium (mEq/L) | 3.7 |
| Adjusted calcium (mg/dl) (8.3–10.6) | 8.4 |
| Total bilirubin (mg/dl) | 1.0 |
| Aspartate aminotransferase (IU/L) (5–40) | 126 |
| Alanine aminotransferase (IU/L) (16–63) | 62 |
| Alkaline phosphatase (U/L) (44–147) | 108 |
| Protein (g/dl) (5.7–8.2) | 5.3 |
| Albumin (g/dl) (4.0–4.7) | 2.9 |
| Prothrombin time (control: 11.5 s) | 12.9 |
| INR | 1.01 |
| Erythrocyte sedimentation rate (mm/1hr) | 68 |
| C-reactive protein (mg/L) | Negative |
| Lactate dehydrogenase (U/L) (81–234) | 354 |
| Creatine phosphokinase (U/L) (26–192) | 906 |
| Ferritin (ng/ml) (23–336) | 145.7 |
| D-Dimer (ng/dl) (0–200) | 200 |
| Procalcitonin (ng/ml) (0–0.5) | 0.08 |
| Serum vitamin B12 (pg/ml) (211–911) | 140 |
| Serum folic acid (ng/ml) (2.6–12.2) | 10.16 |
| Total 25-hydroxy vitamin D (ng/ml) (<10 deficient) | 9.37 |
| Parathyroid stimulating hormone | Not performed |
| Human immunodeficiency virus (HIV) | Negative |
| Hepatitis B surface antigen (HBsAg) | Negative |
| Anti–hepatitis C virus | Negative |
| Thyroid-stimulating hormone (mcIU/ml) (0.4–4.2) | 2.69 |
| Antinuclear antibody (ANA) by immunofluorescence | Negative |
| ANA profile by immunoblot | Negative |
| Cytoplasmic antineutrophilic cytoplasmic autoantibody (ANCA) | Negative |
| Perinuclear ANCA | Negative |
| Acetylcholine receptor–binding antibodies (nMol/L) (0–0.4) | <0.01 |
| Myositis panel | Negative |
| Borrelia burgdorferi IgM/IgG | Negative |
| Tumor markers | Negative |
| Peripheral blood smear | Hypersegmented neutrophils and macrocytic anemia |
International normalized ratio (INR).