Fingerprikkglukometer

A fingerprikkglukometer is a handheld medical device used to measure the concentration of glucose in blood from a small fingertip sample. It is commonly used by people with diabetes to monitor daily glucose levels and to help adjust diet, activity, and medication. The term fingerprikkglukometer is the Swedish-style spelling of the device known in English as a finger-prick glucose meter.

The device works by pricking the finger with a lancet to obtain a tiny drop of blood, which is placed on a disposable test strip inserted into the meter. The strip contains enzymes that react with glucose and create an electrical signal the meter converts into a numeric glucose value, shown on a digital display. Most systems store recent readings and can transfer data to a smartphone or computer via Bluetooth or USB.

Typical components include the meter, a lancet device, disposable test strips, and a battery or power source. Test strips are single-use, and accuracy depends on proper technique and correct strip storage. Some meters support alternate-site testing, but fingertip samples are often preferred when glucose is changing rapidly.

Accuracy is subject to standards such as ISO 15197 in many regions, which require readings to be within defined limits compared with laboratory references. Modern meters usually display results in mg/dL or mmol/L and may have a mean absolute relative difference (MARD) around 8–10%, depending on conditions and user technique.

Limitations include potential interference from temperature, humidity, altitude, dehydration, or high hematocrit, and risks of infection if lancets or strips are reused. Proper hand hygiene, correct sampling technique, and using unexpired strips are important. Fingerprikkglukometer readings provide point measurements and do not replace professional medical advice or, in some cases, continuous glucose monitoring.