Which statement best describes flow-through immunoassays?

Which statement best describes flow-through immunoassays?

• A. They are designed for point-of-care testing.
• B. Results are quantitative.
• C. Reagents must be added separately.
• D. They are difficult to interpret.

Answer: (A)

Flow-through immunoassays are built for speed and on-site use by letting the sample flow through a medium where antibodies are immobilized and detection occurs as the sample passes. This flowing, self-contained process often requires little to no specialized equipment, so results can be obtained quickly right at the point of care. Because the design focuses on rapid, simple results, these tests typically yield qualitative or semi-quantitative information rather than precise measurements. Reagents are usually pre-loaded into the device and are activated by the flowing sample, so you don’t need to add them separately. Interpreting the results is generally straightforward, which supports easy use in a non-laboratory setting.

Flow-through immunoassays are built for speed and on-site use by letting the sample flow through a medium where antibodies are immobilized and detection occurs as the sample passes. This flowing, self-contained process often requires little to no specialized equipment, so results can be obtained quickly right at the point of care.

Because the design focuses on rapid, simple results, these tests typically yield qualitative or semi-quantitative information rather than precise measurements. Reagents are usually pre-loaded into the device and are activated by the flowing sample, so you don’t need to add them separately. Interpreting the results is generally straightforward, which supports easy use in a non-laboratory setting.