27 December 2024
: Case report 
Metapneumovirus-Induced Myocarditis Complicated by Klebsiella pneumoniae Co-Infection: A Case Report
Rare coexistence of disease or pathology
Shih-Hung Wang
ABEF 1, Mei-Hui Lee ADF 2, Yuarn-Jang Lee CD 2, Yung-Ching Liu CDG 2*
DOI: 10.12659/AJCR.946119
Am J Case Rep 2024; 25:e946119
Table 1. Initial laboratory findings.
| Day 0 | Day 2 | Reference ranges | |
|---|---|---|---|
| WBC (count/uL) | 3240 | 3070 | 4800–10800 |
| Neutrophil (band) | 49% (10%) | – | 40.0–74.0 |
| Lymphocyte | 0.33 | – | 19.0–48.0 |
| Hb (g/dL) | 15.3 | 12.7 | 14.0–18.0 |
| Platelet (count/uL) | 221000 | 19000 | 130000–400000 |
| BUN (mg/dL) | 9 | 38 | 9–21 |
| Creatinine (mg/dL) | 2.34 | 1.78 | 0.72–1.25 |
| Procalcitonin (ng/mL) | 50.75 | – | <0.08 |
| BNP (pg/mL) | 44.8 | – | <160.0 |
| Troponin-I (pg/mL) | 248.7 | 33328.4 | <26.2 |
| CKMB (ng/mL) | 1.9 | 182 | <4.70 |
| CPK (U/L) | 662 | 3319 | 30–200 |
| GOT (IU/L) | 111 | 2035 | <42 |
| Total bilirubin (mg/dL) | 0.9 | 4.7 | 0.1–1.2 |
| Direct bilirubin (mg/dL) | – | 0.7 | <0.6 |
| Lactate (mmol/L) | 12.2 | 18.1 | 0.5–2.2 |
| Na (mmol/L) | 136 | 145 | 136–145 |
| K (mmol/L) | 4.8 | 4.4 | 3.5–5.1 |
| Cl (mmol/L)) | 103 | 106 | 98–108 |