Subcutaneous Injection: OSCE Station Checklist

The subcutaneous injection station usually arrives as insulin or enoxaparin, paired with another medication skill in a 21-minute block. The injection itself takes thirty seconds. The station is really marking everything around it.

The sequence the checklist rewards:

1. Check the prescription: right patient, drug, dose, route, time, and check allergies.
2. Hand hygiene. Introduce yourself, confirm the patient’s identity, explain, and take consent.
3. Prepare the drug with clean technique, checking expiry and the ampoule or pen against the chart.
4. Choose and expose the site with dignity: abdomen (5 cm clear of the umbilicus), outer thigh, or upper outer arm. Ask where the last dose went; rotate.
5. Inject at 90 degrees with a short needle. No aspiration. Steady, slow push, then withdraw.
6. Sharp straight into the bin at the point of use. Never recap.
7. Hand hygiene again. Make the patient comfortable.
8. Document: drug, dose, site, time, signature, and any patient refusal or reaction.

Where the marks go missing

The drug-specific rules are the exam’s favourite tests. Pre-filled enoxaparin keeps its air bubble; expelling it is the classic error. No rubbing the site afterwards, and if the “patient” asks you to, the actor is prompting you to say why not. Insulin questions lean on site rotation, because repeated same-site injections cause lipohypertrophy and erratic absorption.

Angles trip up internationally trained candidates more than technique does. Older training taught 45 degrees with a pinched skinfold, and that’s still right for long needles on thin patients. But the equipment in front of you will almost always be a short needle, and short needles go in at 90. Match the angle to the needle, and say your reasoning aloud; examiners can only mark what they see and hear.

Then the four habits that follow you through every station: hand hygiene at the right moments (before patient contact, before the aseptic task, after), sharps at the point of use, dignity (curtains, minimal exposure, consent before touching), and documentation. In this station documentation means the medication chart, immediately, not a promise to write it later.

Narrate as you work. “I’m checking the prescription against the patient’s identity band” turns an invisible check into a mark. Silence is the cheapest way to fail a station you actually performed well.

Five questions below. The IM injection station is next; the two are close cousins and often confused under pressure, which is exactly why the exam pairs medication skills together.