Proper technique for the capillary puncture includes:

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Wiping away the first drop of blood helps to ensure that the sample collected is not contaminated with tissue fluid, which can affect test results. Squeezing the puncture site prior to use of the lancet can cause tissue fluid contamination and affect results. Placing an ice pack on the puncture site prior to collection can cause vasoconstriction which can makes performing the puncture more difficult. Performing the puncture immediately following alcohol cleansing can lead to inaccurate test results as alcohol dissolves cholesterol and interferes with many chemical tests.

Proper Technique for the Capillary Puncture Includes