04 July 2024
: Case report 
Rapid Progression of Acute Interstitial Pneumonia in a Patient with Low MDA-5 Antibody Titer
Unusual clinical course, Challenging differential diagnosis, Unusual setting of medical care
Sung Won Chang
1ABCDEF, Kyung Hoon Min 1BC, Sung Yong Lee 1BD, Jae Jeong Shim 1D, Gyu-Young Hur 1ABCD*
DOI: 10.12659/AJCR.943655
Am J Case Rep 2024; 25:e943655
Table 1. Initial laboratory finding on admission.
| Parameter | Patient value | Reference value |
|---|---|---|
| CBC c differential | ||
| Hemoglobin (g/dL) | 12.5 | 12.0–16.0 |
| Hematocrit (%) | 37.4 | 36–46 |
| MCV (fL) | 95.0 | 80–100 |
| Platelets (×10/μL) | 235 | 150–440 |
| WBC (×10/μL) | 14.3 | 4.5–11.0 |
| Neutrophils (%) | 84.5 | 40–75 |
| Lymphocytes (%) | 9.8% | 13–44 |
| Monocytes (%) | 9.8% | 2.4–11.8 |
| Eosinophils (%) | 2.6% | 0–5 |
| Basophils (%) | 0.1% | 0–3 |
| ANC (/μL) | 12084 | – |
| AEC (/μL) | 372 | – |
| BUN (mg/dL) | 10.2 | 7–20 |
| Creatinine (mg/dL) | 0.54 | 0.5–1.1 |
| pH | 7.46 | 7.35–7.45 |
| PCO2 (mmHg) | 34 | 35–45 |
| PO2 (mmol/L) | 60 | 75–100 |
| HCO3 (mmol/L) | 24.2 | 21.0–27.0 |
| CRP (mg/L) | 439.93 | <5 |
| Lactic acid (mmol/L) | 2.5 | 0.5–2.2 |