A 75-year-old man had his hand caught in an agricultural machine while cutting straw, resulting in amputation of the palmar area of the right hand except a part of the soft tissues. Reattachment surgery was performed on the same day of the accident. The laboratory findings at presentation were total protein, 7.2 g/dL; albumin, 3.9 g/dL; aspartate aminotransferase, 41 U/L; alanine aminotransferase, 24 U/L; and hemoglobin, 12.6 g/dL. Mildly impaired liver function and mild anemia were observed. Cardiac function tests (ejection fraction, 68.4%; normal range, 58 to 89%) and respiratory function tests (FEV1 percent predicted, 79.9%; normal range, ≥ 70%; FVC percent predicted, 92.4%; normal range, ≥ 80%) showed no abnormalities.