Chapter 19 (Specimen Collection)

Open Resources for Nursing (Open RN)

Answer Key to Chapter 19 Learning Activities

  1. When experiencing difficulty in collecting a capillary blood sample, one should consider the location of the lancet puncture. It is best to avoid calloused areas.  Additionally, the hand can be placed in a dependent position for a short period of time to facilitate blood collection into the fingertips. The use of a warm pack or heat application can also facilitate vasodilation and increase blood flow.

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