Administer Injections

Injections are most commonly administered IM (intramuscular) or SC (subcutaneously)

Subcutaneous (SC):

Route of administration for small volumes (0.5–1.0mL) of water-soluble medication into the loose connective tissue beneath the dermis. Absorption is slow, but usually complete in patients without circulatory compromise. Onset of action is delayed (up to 30–45 minutes).

Contraindications:

Circulatory shock
Reduced local tissue perfusion
Very thin patients (may have inadequate adipose tissue for subcutaneous injection)
Bleeding diathesis

Complications:

Local tissue irritation, inflammation, erythema or pain.
Sterile abscess (collection of medication within the skin and appears as a hard painful lump).