| A | B |
|---|
| Adm | administer |
| IC | intracardiac (into the heart) |
| ID | intradermal (within the layers of skin) |
| IM | intramuscular (into the muscle) |
| IN | intransal (into the nasal cavity) |
| IO | intraoseous (into the bone) |
| IP | intraperitoneal (into the peritoneum or |
| IT | intratracheal (into the trachea or windpipe) |
| IV | intravenous (into the vein) |
| PO | by mouth or orally |
| SQ | subcutaneous (under the skin) |
| SUB-Q | subcutaneous (under the skin) |
