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. 2022 Aug 30;14(8):e28594. doi: 10.7759/cureus.28594

Table 1. Instruments and Methods Used for the Quantitative Analysis of Biochemical Parameters.

Sr.No. Instruments Tests Reference Intervals Methods 
A. Mindray BS-380: Fully-Automated Analyzer (Serum in plain vacutainer) Liver Function Tests
Total Bilirubin 0.2-1.2 Milli Grams (mg) per Deciliters (dl) Diazotized Sulfanilic Acid (DSA) 
Direct Bilirubin 0-0.3 mg/dl DSA 
Indirect Bilirubin 0.5-0.9 mg/dl Calculated
Serum Protein 6.6-8.3 Grams (g) per dl Biuret 
Serum Albumin 3.5-5.0 g/dl Bromo Cresol Green (BCG) 
Serum Globulin 2.5-3.5 g/dl Calculated
Alanine Aminotransferase (ALT) 10-46 International Units (IU) per Liter (L) Creatine Kinase (CK) activity assay (International Federation of Clinical Chemistry (IFCC)/Kinetic)
Aspartate Aminotransferase (AST) 10-49 IU/L CK activity assay (IFCC/Kinetic)
Alkaline Phosphatase (ALP) 108-306 IU/L Para Nitrophenyl Phosphate (PNP) and AMP Buffer (IFCC/Kinetic)
Lactate Dehydrogenase (LDH) M: 248 IU/L F: 247 IU/L IFCC/Kinetic
Renal Function Tests
Urea 20-40 mg/dl Urease-Glutamate dehydrogenase (GLDH)
Creatinine M: 0.6-1.4 mg/dl F: 0.6-1.2 mg/dl Sarcosine Oxidase 
B. Avantor Easylyte: Electrolyte Analyzer (Serum in plain vacutainer) Sodium 135.0-145.0 Milli Moles (mmol) per L Ion-selective electrodes (ISE)
Potassium 3.5-5.0 mmol/L Ion-selective electrodes (ISE) 
C. Beckman Coulter Access 2: Immunoassay System (Serum in plain vacutainer) Interleukin (IL)-6 <6.4 Pico Grams (pg) per ml Chemiluminescent Immunoassay method (CLIA)
Ferritin M: 30-350 Nano Grams (ng) per ml F: 20-250 ng/ml CLIA
D. AQT90 Flex: Immunoassay Analyzer (Whole blood in EDTA Vacutainer) D-Dimer Upto 50 Years: 80-583 µg/L Above 50 Years: 80-654 µg (Micro Grams)/L Immunoassay (IA)
Procalcitonin (PCT) <0.15 ng/ml IA