The EMS field reference that works with no signal.

3rd Rider puts ECG examples, pediatric tools, drug cards and field tools in your pocket. Built for EMTs and paramedics. It works offline, and what you enter stays on your phone.

Coming soon to the App Store Coming soon to Google Play

A look inside

Home screen: search, Jump Seat, the shift check and My protocols. — Home

Inferior STEMI page with a recorded 12-lead ECG. — ECG examples

12-lead map with each lead colored by the wall of the heart it shows. — 12-lead map

Epinephrine drug card with pictures of how it comes. — Drug cards

PEDS tab with age and weight buttons and pediatric tools. — PEDS

Heart and conduction system picture with numbered labels to tap. — Anatomy

Screens from the pre-release app. "Draft" labels mark content still in medical review. The ECG shown is a real recording from PTB-XL on PhysioNet (Wagner P, et al., doi:10.13026/kfzx-aw45), used under CC BY 4.0.

What it does

ECG examples and 12-leads Real recorded ECGs with what to look for and common look-alikes, including STEMI and posterior MI 12-leads.
Peds Age and tape-length cards with typical weight, tube sizes and normal vital signs, plus pediatric tools.
Drug cards Indications, contraindications, cautions and common reference doses as written in their sources.
Field tools A 12-lead map, triage, stroke and spine screens, burn area and a radio report.
Hospitals nearby U.S. hospitals sorted by distance, worked out on your phone.
On the call A code log and call report that stay on your phone and are wiped when the call ends.

Reference only. 3rd Rider supports trained EMS professionals. Always follow your local protocols and medical control.