Indication
Aspirin for ACS / chest pain
Adult dosing has a median of 324 mg across 150 published protocols, with the middle half between 324 and 324.
150sources
131named agencies
39states
164entries
127named here
1,335 rows are under review across the census and excluded from every number on this page. How that works.
Adultmg
150sources
131named agencies
39states
164entries
2kept as written
| min | p25 | median | p75 | max |
|---|---|---|---|---|
| 160 | 324 | 324 | 324 | 325 |
Values in mg. One value per source (that source's median), so a document listing a drug five times still gets one vote.
Routes
- PO 99%
- PO/PR 1%
- PR 1%
United States EMS Protocol Census, n=150 protocols from 131 named agencies / 39 states, updated Sep 2026
Named agencies
Agencies whose protocols are a public record are named here. Their own doses are on their own pages; this list carries no values.
- Ada County-City Emergency Services System
- Adams, Benton, Franklin, Yakima Counties
- Adams, Benton, Franklin, Yakima Counties EMS
- Alameda County Emergency Medical Services
- Anderson County Emergency Medical Services
- Arlington EMS System
- Ascension Saint Joseph Hospital EMS System
- BC Emergency Health Services
- Berrien County Medical Control Authority
- BEST EMS
- Bexar County ESD 4 Fire Rescue
- Boulder County EMS
- Boulder County Protocol Committee
- Brigham City, Cache County, Logan City, Smithfield Fire Departments
- Brunswick County EMS
- Bureau of EMS, Trauma & Preparedness
- Cabarrus County EMS
- Campbell County Emergency Medical Service
- Central Arizona Regional EMS
- Central California Emergency Medical Services
- Chelan/Douglas/Okanogan/Grant County
- Clark County EMS System
- Cochran County Emergency Medical Services
- County of Marin EMS
- County of Riverside Emergency Medical Services Agency
- County of Riverside Emergency Medical Services (EMS) Agency (REMSA)
- County of San Diego Emergency Medical Services
- Craven, Jones, Pamlico Counties EMS
- Crowley Fire Department
- Davidson County Emergency Services
- Daviess County EMS
- Delaware Office of Emergency Medical Services
- Denver Health Paramedic Division
- Denver Metro EMS Medical Directors
- Department of Health Services, County of Los Angeles
- District of Columbia Fire and EMS Department
- Escambia County Emergency Medical Services
- Fairfax County Fire and Rescue Department
- Fern Creek Fire and Emergency Medical Services
- FirstHealth of the Carolinas
- Fort Lauderdale Fire Rescue
- Galveston Area Ambulance Authority
- Giles County EMS
- Greater Miami Valley EMS Council
- Hays County ESD 9 EMS
- Haywood County EMS System
- HEMS, Inc
- Houston Fire Department
- Hunt County EMS
- Idaho EMS Physician Commission
- Inland Counties Emergency Medical Agency
- Kern County Public Health
- Kershaw County Emergency Medical Services
- Lake Cities Fire Department
- Lake County Emergency Medical System
- Laurens County Emergency Medical Services
- Manatee County Emergency Medical Services
- Marin County Emergency Medical Services Agency
- Maryland Institute for Emergency Medical Services Systems
- Massachusetts Department of Public Health, Office of Emergency Medical Services
- Massachusetts Office of Emergency Medical Services
- Mecklenburg EMS Agency
- MEP (In partnership with SSM Health)
- MEP (Medical Emergency Partnership) in partnership with SSM Health
- Metro Regional EMS
- Metro Regional EMS Consortium
- MetroCare Services and Abilene Fire Department
- Michigan Department of Health and Human Services (MDHHS)
- Michigan Department of Health and Human Services (MDHHS) / Berrien County
- Michigan Department of Health and Human Services (MDHHS) / Midland Gladwin MCA
- Michigan Department of Health and Human Services (MDHHS) / West Michigan Regional MCC
- Montana Board of Medical Examiners
- Muskegon County
- Muskogee County EMS
- National Emergency Medical Services
- Nebraska Board of Emergency Medical Services
- New Hampshire Bureau of Emergency Medical Services
- New York State Department of Health, Bureau of Emergency Medical Services and Trauma Systems
- North Carolina Office of Emergency Medical Services (NC OEMS)
- Northwest Community EMS System
- Northwest Region Emergency Medical Services & Trauma Care Council
- Oakland County Medical Control Authority
- Oakland County Medical Control Authority (OCMCA)
- Ocala/Marion County Fire Rescue
- Ocala/Marion County/The Villages Public Safety EMS
- Office of the EMS Medical Director for Kansas City, Missouri
- Old Dominion EMS Alliance, Inc.
- Palm Beach Gardens Fire Rescue
- Pend Oreille County Emergency Medical Services
- Pennsylvania Department of Health, Bureau of Emergency Medical Services
- Pettis County Ambulance District
- Pierce County Emergency Medical Services
- Platte Valley Ambulance Service
- Queensland Ambulance Service
- Region 11 Chicago EMS System
- Region 4 EMS (Alton Memorial Hospital, Anderson Hospital, HSHS St. Elizabeth's Hospital, OSF St. Anthony's Health Center)
- Region One Metropolitan Ambulance Council (MAC)
- Region X EMS
- Regional Emergency Medical Advisory Committee of New York City
- Riverside County Emergency Medical Services Agency (REMSA)
- Rowan County Emergency Services EMS Division
- Salt Lake County EMS
- San Diego County Emergency Medical Services Office
- Santa Barbara County Public Health Department
- Seattle and King County EMS
- Sierra – Sacramento Valley EMS Agency
- South Carolina Department of Public Health (DPH) Division of EMS
- Southern Fox Valley EMS System
- St. Johns County Fire Rescue
- Stanly County EMS
- State Board of Emergency Medical, Fire, and Transportation Services
- State Board of Emergency Medical, Fire, and Transportation Services (EMFTS Board)
- Stevens County Emergency Medical Services
- Susquehanna Regional EMS
- Tennessee Emergency Medical Services
- The Williamson County EMS System
- Three Rivers Ambulance Authority & Fort Wayne Fire Department
- Thurston County Medic One
- Tidewater Emergency Medical Services Council, Inc.
- Tri County Emergency Medical Services, Inc.
- Utah Department of Public Safety, Bureau of Emergency Medical Services
- Vermont Department of Health
- Vermont Department of Health, Office of Emergency Medical Services
- Washington State Department of Health
- West Palm Beach Fire Department
- West Virginia Department of Health, Office of Emergency Medical Services
- Wilson County Emergency Management Agency