Check before giving

SO-C-015 withholds aspirin for reported allergy, anticoagulant/antiplatelet medication use, or direct midline mid-back pain suggesting possible aortic dissection.
Apply the OCEMS contraindications as written; a general cardiac guideline from another jurisdiction may differ.

Use in OCEMS

The 9-1-1 standing-order indication is adult/adolescent chest pain of suspected cardiac origin or an anginal equivalent.
Obtain a 12-lead promptly; a normal tracing does not exclude serious ischemia.

Indication / route	Dose & limits
Suspected cardiac chest pain	Four 81 mg tablets (324 mg total) or one 325 mg tablet, once. SO-C-015 instructs the patient to chew.

A pediatric cardiac aspirin regimen is not provided in I-20. Do not scale down the adult chest-pain dose or present adult standing-order authority as pediatric authorization.
Use the applicable pediatric assessment and base-directed care when cardiac disease is suspected.

No routine pediatric field regimen is supplied by the cited OCEMS sources; do not scale an adult dose by weight.

Weight	OCEMS pediatric dose
Any weight	No general pediatric dose under the cited source; follow the applicable order / medical direction.

Ask specifically about medications already taken and document the amount administered.
SO-F-02 separately lists aspirin for eligible firefighting personnel using package directions through an FS-ARN program; that is not a general pediatric or ALS dosing pathway.