Evaluating Bilirubin Levels in Bank Blood.
ARMY MEDICAL RESEARCH LAB FORT KNOX KY
Pagination or Media Count:
Careful observation can screen for blood bank units with potential health problems. Units with bilirubin levels over 2.0 mg100 ml were readily detected by the experienced observer. Unfortunately, discoloration by levels less than this was not as clearly discerned. Artificial color standards were prepared for assistance in training personnel and for screening of the units. Such prepared bilirubin standards were less stable for long-term use but could be easily matched in color by varying concentrations of potassium dichromate. Automated testing of all collected blood in a donor center, even in large numbers, could be done but, consideration of cost and technician time in rechecking units would raise the question of practicality. The questionable category could be chemically tested, thereby reducing the number for such testing to 10-15 of the total collected. Serum was considered preferable to plasma for such testing, based on the serial storage studies. Samples drawn at the time of collection could be held for a few days waiting for the visual inspection report and then tested, if necessary. Modified author abstract
- Medicine and Medical Research