Lab test comparisons
The values people mix up most, side by side — what each one measures, how their ranges differ, and why labs order them together.
SGPT (ALT) vs SGOT (AST)What's the difference between SGPT and SGOT?HbA1c vs Fasting GlucoseWhat's the difference between HbA1c and fasting glucose?Fasting Glucose vs Post-Prandial Glucose (PPBS)What's the difference between fasting and post-prandial blood sugar?LDL Cholesterol vs HDL CholesterolWhat's the difference between LDL and HDL cholesterol?Total Cholesterol vs LDL CholesterolWhat's the difference between total cholesterol and LDL?Non-HDL Cholesterol vs LDL CholesterolWhat's the difference between non-HDL cholesterol and LDL?Apolipoprotein B (ApoB) vs LDL CholesterolWhat's the difference between ApoB and LDL cholesterol?Triglycerides vs Total CholesterolWhat's the difference between triglycerides and cholesterol?TSH vs Free T4What's the difference between TSH and free T4?Free T3 vs Free T4What's the difference between free T3 and free T4?Total T4 vs Free T4What's the difference between total T4 and free T4?Vitamin D (25-OH) vs Vitamin B12What's the difference between vitamin D and vitamin B12?Ferritin vs Serum IronWhat's the difference between ferritin and serum iron?Hemoglobin vs Hematocrit / PCVWhat's the difference between hemoglobin and hematocrit?Creatinine vs Urea / BUNWhat's the difference between creatinine and urea (BUN)?Creatinine vs eGFR (Estimated Glomerular Filtration Rate)What's the difference between creatinine and eGFR?CRP vs ESRWhat's the difference between CRP and ESR?Total Bilirubin vs Direct BilirubinWhat's the difference between total and direct bilirubin?Amylase vs LipaseWhat's the difference between amylase and lipase?Troponin I vs Troponin T (High-Sensitivity)What's the difference between troponin I and troponin T?CK-MB vs Troponin IWhat's the difference between CK-MB and troponin?Calcium vs Vitamin D (25-OH)What's the difference between calcium and vitamin D?
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