Contact: research@protoquiz.com

Indication

Atropine for Bradycardia

214 sources182 named agencies49 statesas of 2026-10-31

Adult dosing has a median of 1 mg across 212 published protocols, with the middle half between 0.7125 and 1.

214sources
182named agencies
49states
444entries
178named here

Includes 3 agencies outside the US.

Doses far off from what other protocols give are likely misreads, so they are left out until checked. How that works.

Adultmg

212sources
180named agencies
49states
221entries
0kept as written
minp25medianp75max
0.50.7125111

Values in mg. One value per source (that source's median), so a document listing a medication five times still gets one vote.

Routes

  • IV/IO 76%
  • IV 24%
  • IO 1%
  • IV/IO/IM 1%

United States EMS Protocol Census, n=212 protocols from 180 named agencies / 49 states, updated Oct 2026

Pediatric, weight-basedmg/kg

203sources
175named agencies
48states
219entries
0kept as written
minp25medianp75max
0.010.020.020.020.05

Values in mg/kg. One value per source (that source's median), so a document listing a medication five times still gets one vote.

Routes

  • IV/IO 77%
  • IV 21%
  • ET 1%
  • IO 1%
  • IV/IO/ET 1%
  • IV/IO/IM 1%

United States EMS Protocol Census, n=203 protocols from 175 named agencies / 48 states, updated Oct 2026

Adult, weight-basedmg/kg

4sources
4named agencies
4states
4entries
0kept as written

Below 5 sources, so no distribution is published for this group — only the counts above.

Routes

  • IV/IO 100%

United States EMS Protocol Census, n=4 protocols from 4 named agencies / 4 states, updated Oct 2026

Named agencies with a page178

Agencies whose protocols are a public record are named here. Their own doses are on their own pages; this list carries no values.

Training reference compiled from published protocols. Not a clinical order. Verify with your agency and medical director.