Cleanse the skin with an alcohol swab, insert the needle, aspirate, and inject the heparin.

Cleanse the skin with an alcohol swab, insert the needle, inject the heparin, aspirate, and observe for bleeding.

Cleanse the skin with an alcohol swab, insert the needle, aspirate, inject the heparin, and massage the site.

Cleanse the skin with an alcohol swab, insert the needle, inject the heparin, and observe for bleeding.