Interference studies typically use _____ as an interferent.

Interference studies typically use _____ as an interferent.

• A. All of these
• B. Hemolyzed red cells
• C. Highly icteric samples
• D. Highly lipemic samples

Answer: (A)

Interference studies in clinical chemistry look at how common substances in patient samples alter assay results. Hemolyzed samples introduce released hemoglobin and other intracellular components that can distort optical readings or enzymatic reactions. Highly icteric samples bring excess bilirubin, which can color or absorb light at wavelengths used by many assays, leading to spectral interference. Highly lipemic samples create turbidity from lipids, scattering light and potentially shifting reaction dynamics or affecting separation steps in the method. Because each of these categories can skew measurements in different ways, interference testing typically includes all of them to fully characterize an assay’s robustness. Therefore, all of these are used as interferents in interference studies.

Interference studies in clinical chemistry look at how common substances in patient samples alter assay results. Hemolyzed samples introduce released hemoglobin and other intracellular components that can distort optical readings or enzymatic reactions. Highly icteric samples bring excess bilirubin, which can color or absorb light at wavelengths used by many assays, leading to spectral interference. Highly lipemic samples create turbidity from lipids, scattering light and potentially shifting reaction dynamics or affecting separation steps in the method. Because each of these categories can skew measurements in different ways, interference testing typically includes all of them to fully characterize an assay’s robustness. Therefore, all of these are used as interferents in interference studies.