Table 1. Blood, urine, and cerebrospinal fluid test results.
MCV = mean corpuscular volume; MCH = mean corpuscular hemoglobin; WBC = white blood cell; AST = aspartate transaminase; ALT = alanine transaminase; TSH = thyroid-stimulating hormone; ACTH = adrenocorticotropic hormone; LH = luteinizing hormone; FSH = follicle-stimulating hormone; GH = growth hormone; IGF-1 = insulin-like growth factor 1; CK = creatine kinase; anti-MOG = anti-myelin oligodendrocyte glycoprotein; NMO = neuromyelitis optica; AQP4 = aquaporin‐4
| Investigations | Values |
| Complete blood count | |
| Hemoglobin | 11.3 g/dL |
| MCV | 60.7 fL |
| MCH | 19.9 pg |
| WBC | 15.15 × 103/µL |
| Biochemistry | |
| Osmolality | 283 mOsmol/kg (normal: 275–295) |
| Glucose | 79 mg/dL |
| Sodium | 128 mmol/L (normal: 136–145) |
| Total Bilirubin | 0.22 mg/dL |
| AST | 44 U/L |
| ALT | 29 U/L |
| Endocrinology | |
| TSH | 3.75 mIU/L (normal: 0.7–5.9) |
| T4 | 17.5 pmol/L (normal: 12.3–22.8) |
| Prolactin | 178.4 ng/mL (normal: 4.8–23.3) |
| ACTH | 74 pg/mL (normal: 7.2–63.3) |
| Cortisol AM | 11.5 µg/dL (normal: 3.7–9.4) |
| LH | <0.1 mIU/mL |
| FSH | 0.3 mIU/mL (normal: 0.2–11.1) |
| GH | 1.88 ng/mL (normal: 0–10) |
| IGF-1 | 67 ng/mL (normal: 34.2–155) |
| Specific blood tests | |
| CK | 67 U/L (normal: 0–149) |
| Alpha-fetoprotein | 2.2 ng/mL (normal: 0–8.3) |
| Neuron-specific enolase | 16.3 ng/mL (normal: 0–12.5) |
| Paraneoplastic autoantibodies | Negative |
| Anti-neuronal nuclear antibody (I, II, III) | Negative |
| Anti-glial nuclear antibody (I) | Negative |
| Purkinje cell cytoplasmic antibody (I, II, III) | Negative |
| Normetanephrine | 65.3 pg/mL |
| Metanephrines | 46.5 pg/mL (normal: 0–88.0) |
| Urine investigations | |
| Osmolality | 260 mOsmol/kg (normal: 50–1400) |
| Specific gravity | <1.005 |
| Sodium | 26 mmol/L |
| VMA/Creatinine | 5.7 mg/g creat (normal: 0–11) |
| HVA/Creatinine | 14 mg/g creat (normal: 0–22) |
| Cerebrospinal fluid investigations | |
| Glucose | 59 mg/dL |
| Protein | 16 mg/dL |
| WBC | 4 |
| Neutrophils | 0% |
| Lymphocytes | 100% |
| Viral panel | Negative |
| Culture | Negative |
| Lactate | 1.9 mmol/L (normal: 1.1–2.8) |
| Oligoclonal bands | Positive for oligoclonal bands |
| Anti-MOG antibodies | Negative |
| NMO/AQP4 IgG | Negative |