Nursing Component Task
Nursing procedures & clinical learning

General Nursing (RGN)

ADMINISTRATION OF SUBCUTANEOUS MEDICATION

This procedure describes administration of a prescribed small-volume medication into subcutaneous tissue. The nurse selects an appropriate site and angle, maintains asepsis, observes the patient and documents the dose and site for safe follow-up.

Purpose

  • Administer a prescribed medication into subcutaneous tissue
  • Provide slower absorption when the medication and prescription indicate this route
  • Reduce discomfort and local complications through correct site and technique

Indications

  • A valid prescription specifies the subcutaneous route
  • The medication and volume are suitable for subcutaneous administration
  • The patient has an appropriate area of healthy subcutaneous tissue

Equipment

  • Prescribed medication and treatment chart
  • Sterile single-use syringe and appropriate needle or authorised prefilled syringe
  • Antiseptic swabs, sterile gauze and adhesive strip if needed
  • Gloves and PPE according to risk assessment
  • Receiver and approved sharps container
  • Hand hygiene supplies and protective bed covering when required

Preparation

  • Verify patient, medication, dose, route, time, allergies, expiry, indication and prescription.
  • Assess the patient's tissue depth, skin condition, bleeding risk, previous injection sites and ability to cooperate.
  • Explain the procedure, obtain consent and provide privacy before positioning the patient.

Procedure steps

  • Perform hand hygiene and identify the patient using approved identifiers.
  • Prepare the medication aseptically and remove air according to the product instructions without contaminating the needle.
  • Select and inspect a healthy site with sufficient subcutaneous tissue; rotate sites when repeated doses are prescribed.
  • Position the patient comfortably, expose only the site and clean it with approved antiseptic, allowing it to dry.
  • Lift or spread the skin fold as indicated by tissue depth and insert the needle at the prescribed angle, commonly 45 or 90 degrees.
  • Administer the medication steadily according to product and facility guidance; do not massage unless specifically directed.
  • Follow local policy regarding aspiration and stop safely if blood, unexpected pain or resistance occurs.
  • Withdraw the needle, apply gentle pressure if needed and dispose of the sharp immediately without recapping.
  • Reposition the patient, inspect the site and observe for bleeding, swelling, pain, allergy or other response.
  • Perform hand hygiene and document medication, dose, route, time, exact site, response and any abnormality.

Precautions

  • Avoid bruised, scarred, inflamed, infected, oedematous or previously overused sites.
  • Do not massage medications for which massage can alter absorption or cause tissue injury.
  • Use extra caution and seek guidance for patients with bleeding risk, very little subcutaneous tissue or altered sensation.
  • Escalate suspected medication error, severe local reaction, bleeding or systemic allergy.

Aftercare

  • Check the site and patient response during the appropriate follow-up period.
  • Teach site rotation and safe observation when the patient or caregiver will continue prescribed injections.

Nursing considerations

  • Follow product-specific instructions for prefilled syringes and do not expel medication unless the product guidance permits it.
  • Use the facility's approved needle, angle, site and sharps-disposal standards.

Possible complications

  • Bruising, bleeding, pain or haematoma
  • Incorrect depth or altered absorption
  • Lipodystrophy or local tissue damage with repeated injections
  • Infection or allergic reaction

Patient education

  • Tell the patient to report increasing redness, warmth, swelling, severe pain, bleeding or breathing difficulty.
  • Explain the importance of not rubbing the site and of using a planned rotation schedule when applicable.

Documentation

  • Record medication, dose, route, date and time, site, patient response and authentication.
  • Document site reaction, refusal, failed attempt, patient education and any escalation.

Educational resource only. Follow current Nursing and Midwifery Council guidance, local institutional protocols, scope of practice, and clinical supervision.

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