**2. POCT as part of POCD**

In the literature, a difference is noted between point-of-care testing (POCT) and point-of-care diagnostics (POCD). At POCT, the focus is on the measurement and the (use of the) measuring instrument and received data. In addition, it is often related to the replacement of laboratory test testing to bedside testing. "POCD" is a broader concept. It is about the entire diagnostic process in which technology at hand has a supporting role. You could say that "point-of-care diagnostics" is the entire (academic) field of knowledge that focuses on technological support where directly aggregated diagnostic results are delivered in a way that is directly and relatively easy to interpret in the context of the subject. This field of knowledge also includes the way in which such diagnostic test results can be used to achieve self-management, self-reliance, a better physical and mental condition, and more resilience or less vulnerability. It can also contribute to a higher level of health literacy and better family support.

So, point-of-care testing (POCT) is the test-related technology used in POCD (POCT, also "rapid bedside testing" or "rapid test"). The actions are performed outside specific test centers by, for example, nurses and regularly not by laboratory personnel.

Today, POCT is no longer just about tests based on, for example, a venipuncture, finger prick, or urine sample. It can also involve diagnostic tests that are performed on the basis of biosensors, thermal measurements, and Internet-related information exchange. Still, the most well-known "rapid bedside tests" are measuring body temperature, blood pressure, and blood gas saturation and measuring glucose in blood and urine [1–4].
