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Communicable Diseases
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Figure 24.2 The procedure used to take a sample of blood for HIV testing. (a) Preparation of supplies required for taking a blood sample (gloves are not shown). (b) The hand of the person to be tested is placed palm-side up. (c) The finger selected for pricking is massaged to encourage blood flow. (d) The finger is cleaned using an alcohol swab. (e) Holding the finger firmly, the sterile lancet is placed off-centre. (f) A drop of blood is squeezed out. (g) The tip of the capillary tube is placed in the drop of blood. (h) The capillary tube is filled with blood between the two marked lines on the tube. (i) All contaminated supplies are disposed of safely.
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