Intradermal Medication Administration

Key Points

  • Intradermal injections deliver small medication volumes into the dermis for testing and selected medications.
  • Correct technique uses a 10-15 degree angle with small-gauge needle selection.
  • Formation of a wheal/bleb indicates appropriate intradermal placement.

Equipment

  • Ordered intradermal medication and syringe
  • Needle typically 25 to 27 gauge and 0.25 to 0.5 in (6.4 to 12.7 mm)
  • Antiseptic solution, gauze, and optional adhesive dressing
  • Documentation tool for route, site, dose, and response

Procedure Steps

  1. Verify patient identity, order, and medication rights before preparation.
  2. Select an appropriate site, typically inner forearm or upper back.
  3. Assess skin integrity and any prior adverse intradermal reaction history.
  4. Cleanse injection area with antiseptic and allow to dry.
  5. Insert needle at a 10-15 degree angle into the dermis.
  6. Inject medication slowly to minimize tissue trauma and leakage.
  7. Confirm wheal/bleb formation, indicating correct placement.
  8. Withdraw needle and cover site with gauze or adhesive dressing as indicated.
  9. Monitor site for redness, swelling, itching, or other adverse response.
  10. Teach patient to avoid scratching or rubbing the site.
  11. Document medication, dose, route, site, and patient response.

Common Errors

  • Incorrect injection angle or depth failed intradermal placement and invalid test result.
  • Not confirming wheal/bleb uncertain medication deposition.
  • Rubbing/scratching the site irritation and inaccurate skin-test interpretation.
  • Incomplete documentation unsafe continuity and interpretation gaps.