What common device is used for glucose monitoring in POCT?

The correct choice is a glucometer, which is a specialized device designed specifically for measuring the concentration of glucose in the blood. Glucometers operate by analyzing a small drop of blood, typically obtained through a fingerstick, and providing rapid results. This functionality is essential in managing diabetes, as it allows individuals and healthcare providers to monitor blood sugar levels conveniently and frequently.

In contrast, other devices listed have entirely different purposes. A blood pressure monitor measures the pressure of blood in the arteries, an otoscope is used to examine the ear canal and eardrum, and a spirometer measures lung function and airflow. Each of these tools is vital in its respective field but does not pertain to glucose monitoring, highlighting the specific role of the glucometer in Point-of-Care Testing for diabetes management.