Final answer:
When performing a dermal puncture on the finger, it should be performed on the side of the fingertip of the non-dominant hand’s 3rd or 4th finger. Puncturing the side of the fingertip is less painful and lower risk than the tip or pad. Cleaning the area with an antiseptic wipe beforehand is crucial to prevent infection.
Step-by-step explanation:
When performing a dermal puncture on the finger, the puncture should be made on the side of the fingertip, not directly on the tip or on the pad. This location is recommended because it is less painful for the patient, as there are fewer nerve endings on the sides of the fingertips compared to the tip or pad. Also, it avoids puncturing the bone, which can be a risk if the puncture is too deep in the fleshy pad of the finger. The recommended site is the distal phalanx of the non-dominant hand's 3rd (middle) or 4th (ring) finger. Before making the puncture, ensure that the area is well cleaned with an antiseptic wipe to prevent infection. The ideal depth for the puncture can vary depending on the thickness of the skin and the amount of blood needed, but usually, a depth between 1.0 to 2.0 mm is sufficient for most adults.