A mean red blood cell volume loss in tonsillectomy, adenoidectomy and adenotonsillectomy.

Objective: To calculate a mean red blood cell volume (RBCV) loss per kilogram (kg) in adenoidectomy, tonsillectomy, and adeno-tonsillectomy.

Materials And Methods: Pre- and post-operative complete blood cell count, and pre-operative clotting studies of 144 patients were measured. Total blood volume (75 or 70 ml/kg), pre- and post-operative RBCV (hematocritxtotal blood volume), RBCV loss, per kg RBCV loss and per cent RBCV loss were calculated.