Assessment of Coverage and Quality of Selected Clinical Chemistry Tests among Medical Laboratories of Health Facilities in Jimma Zone, South West Ethiopia

Table 3

Normal range, stated value, target value (manufacturer), mean of participating laboratories, and acceptable values based on TEa ± 20%, ±10%, ±15%, and ±20 for each analytes ALT, glucose, creatinine, and total bilirubin, respectively,from Humatrol P control sample given in IU/L and mg/dl.

Type of test	Normal range	Stated value(author)	Target value (manufacturer)	Mean of participating laboratories	Acceptable range based on stated value	Acceptable range based on mean value
ALT	112.0-180.0	139.7	2.4-142.0	110.1	118.7-167.6	88.1-132.2
Glucose	229.0-317.0	292.5	15.2-273.0	218.4	263.3-321.8	196.6-240.2
Creatinine	3.6-5.6	4.2	4.2-4.8	4.2	3.6-4.9	3.6-4.8
Bilirubin total	3.4-5.8	6.9	72.6-4.3	4.4	5.5-8.2	3.5-5.3