Table 1. Laboratory work on the day of complete heart block.
pCO2 - partial pressure of carbon dioxide
| Test | Results | Reference range |
| White blood count (WBC) | 6.7 | 4.5-11.00 k/uL |
| Hemoglobin | 15 | 13.6-16.3 G/DL |
| Platelet | 306 | 150-450 k/uL |
| Sodium | 138 | 135-145 meq/L |
| Potassium | 4.8 | 3.5-5.2 mmol/L |
| Chloride | 100 | 96-108 mmol/L |
| Phosphorus | 2.7 | 2.4-4.7 mg/dL |
| Magnesium | 2.1 | 1.5-2.5 mg/dL |
| Creatinine | 0.91 | 0.5-1.1 MG/DL |
| Blood urea nitrogen | 18 | 6-23 MG/DL |
| Brain natriuretic peptide (BNP) | 89.5 | 0.0-100 pg/mL |
| Troponin | <0.010 | <0.031 mg/dl |
| Aspartate aminotransferase | 26 | 1-35 U/L |
| Alanine aminotransferase | 28 | 1-45 U/L |
| Alkaline phosphatase | 56 | 38-126 U/L |
| pH | 7.37 | 7.35-7.45 |
| pCO2 | 40 | 35-45 mmHg |
| Bicarbonate | 26 | 21-29 mEq/L |
| Lactic acid | 1.1 | 0.50-2.00 mmol/L |
| thyroid-stimulating hormone (TSH) | 1.3869 | 0.4-4.2 uIU/mL |