Blood volume used: This refers to the amount of blood used to measure blood glucose, generally between 0.5-10 microliters. The amount of blood used can affect the patient's pain, and blood is also very precious.
Measurement time: This is the time from the reaction to the result, generally between 5-30 seconds. The measurement speed affects the efficiency of the test.
Measurement methods: Venous blood sampling, chemical colorimetric method, and electrode method; the electrode method is the most advanced.
Measurement range: Blood glucose levels that are too low or too high may not be detectable. The general measurement range is 3 to 30 mmol/L.
Test strip packaging: Generally available in tubs and single-use packs. Tub-packaged test strips are susceptible to environmental influences after opening and generally expire within 3 months of opening. Single-use packs are generally packaged in aluminum foil. Only the test strip used is opened for each test; the remaining unopened strips can be used until their expiration date. Some products can be stored for up to 24 months.
Blood collection methods: Drop-type and suction-type. Drop-type test strips have a non-touchable reaction area, and the blood volume is difficult to control (inconsistent blood volume affects the measurement value), making them less advanced. Siphon-type test strips use capillary action to automatically draw blood, requiring less blood, providing a constant blood volume, and the reaction area can be touched, making them more advanced.
