3.5.1.5 Calculation

Urea concentration in mg=dL of test specimen ¼ Abs T þ Abs S � 50 (9)

Blood urea nitrogen BUN ð Þ in mg=dL ¼ urea in mg ð Þ� =dL 0:467 (10)

3.5.2 Estimation of creatinine (Span Diagnostic Ltd., Surat, India)
