What term describes a very small device that performs many lab tasks on a single chip, offering rapid, portable test results?

• A. Lab on a chip
• B. Point-of-care device
• C. Microfluidic assay
• D. Laboratory microarray

Answer: (A)

A lab-on-a-chip captures the idea of a tiny device that brings multiple laboratory functions onto a single microchip, allowing automated sample handling, reactions, and detection to happen quickly in a compact form. This integration means you can get results rapidly and directly at the point of care or in the field, without needing a full traditional lab. The other terms don’t match as precisely: a point-of-care device emphasizes where testing happens rather than the chip-level integration of many lab steps; a microfluidic assay refers to a test run in microfluidic channels but doesn’t inherently imply multiple lab processes on one chip; a laboratory microarray is a grid-based test for measuring many targets, not a portable device performing a suite of lab tasks on a single chip.