Finger-stick blood samplers (lancet devices) are used to obtain blood for testing blood sugar (glucose). These devices consist of two parts: a “lancet holder” that looks like a small pen; and a lancet, which is the sharp point or needle that is placed in the holder. The lancets are only ever used once.

Finger-stick blood samplers (lancet devices) are used to obtain blood for testing blood sugar (glucose). These devices consist of two parts: a “lancet holder” that looks like a small pen; and a lancet, which is the sharp point or needle that is placed in the holder. The lancets are only ever used once.

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