A nurse is reinforcing teaching about home blood glucose monitoring with a client who has a new diagnosis of diabetes mellitus. Which of the following statements by the client indicates an understanding of the teaching?

The scenario addresses proper technique for home blood glucose self-monitoring. Knowledge of capillary blood flow physiology, tissue trauma prevention, and aseptic practices must be applied to identify instructions that ensure an accurate sample and minimize pain. Choice A rationale The center of the finger pad has a high density of nerve endings, making punctures there highly painful. Lancets should be placed on the fleshy sides of the fingertip, which has fewer nerve endings. Choice B rationale Firmly squeezing or milking the finger forces intracellular fluid into the blood sample. This tissue fluid dilutes the capillary blood droplet, leading to falsely low or inaccurate blood glucose meter readings. Choice C rationale Holding the hand dependent increases hydrostatic pressure in the digital arterioles, which enhances capillary engorgement. This dependency facilitates pooling of blood, making it easier to obtain an adequate droplet without milking. Choice D rationale Hydrogen peroxide is cytotoxic, damages skin tissues, and can chemically alter glucose oxidase on the test strip, causing inaccurate readings. The site should be cleansed with plain soap and warm water..