Routes of Medication Administration
Medications are given via various routes — oral, IM, SC, IV, topical, and more. Each route has correct technique, sites, and absorption characteristics.
Practice Routes of Administration with PassMate AI →Key Points to Know
What you must know about Routes of Administration
Common routes: oral (PO), sublingual, intramuscular (IM), subcutaneous (SC), intravenous (IV), topical, rectal, inhalation.
IM injections are given at a 90° angle; common sites include ventrogluteal and deltoid.
Subcutaneous injections are given at a 45–90° angle into fatty tissue (e.g., abdomen).
IV route has the fastest onset because it enters the bloodstream directly.
Intradermal injections (e.g., Mantoux/BCG) are given at a 10–15° angle.
The ventrogluteal site is preferred for IM injections as it avoids major nerves and vessels.
NMCN Exam Tips
How this topic appears in the NMCN exam
IM = 90°, SC = 45–90°, intradermal = 10–15° — memorise the angles.
IV route has the most rapid onset of action.
Ventrogluteal is the safest IM site in adults.
The vastus lateralis is the preferred IM site in infants.
Practice Question
Test yourself
At what angle should the nurse insert the needle when giving an intramuscular injection?
Explanation
Intramuscular injections are administered at a 90-degree angle to ensure the medication reaches the muscle. Subcutaneous injections use 45–90 degrees and intradermal injections use 10–15 degrees.
Want more practice questions on Routes of Administration? Practice with PassMate →
Related topics to study
Master Routes of Administration with AI
Ask PassMate unlimited questions about this topic. Real NMCN past questions, instant explanations, available 24/7.
Start Practicing Now →