What part of the heel should be used for a heel puncture?

Using the medial or lateral sections of the heel for a heel puncture is correct because these areas contain a higher concentration of capillary blood vessels, which makes them ideal for blood collection. Performing the puncture in either the medial or lateral sections allows for effective blood draw while minimizing the risk of injury to deeper tissues, including nerves and bones, that are more prevalent in the central area and the back of the heel.

Puncturing the central area is not recommended as it poses a greater risk of penetrating deeper structures, which can lead to complications such as nerve damage. Collecting blood from all around the heel also increases the risk of injury and is not specific enough to ensure safety or obtain quality samples. Similarly, restricting the draw to only the back of the heel is not advisable since this area does not provide the optimal capillary access needed for a successful heel puncture. Therefore, using the medial or lateral sections balances safety with successful blood collection.