07/03/2026
đź’‰ Routes of Administration
This describes how the medicine enters the body.
PO (Per Os): By mouth (pills, liquids).
IV: Intravenous (into the vein).
IM: Intramuscular (into the muscle, like a flu shot).
SQ / SC: Subcutaneous (under the skin, like insulin).
ID: Intradermal (into the top layer of skin).
IT: Intrathecal (into the spinal canal).
⚖️ Units of Measurement
Your image repeats these a few times, but here are the essential weight conversions:
G or Gm (Gram): The base unit (1g).
Mg (Milligram): 1/1,000 of a gram.
Mcg or ÎĽg (Microgram): 1/1,000,000 of a gram.
Note: These are tiny! Misreading "mg" for "mcg" can result in a 1,000x overdose.