Person suffers cardiac arrest on Mercersburg Road Heard on: Washington MD Fire Dispatch Group Calls 00:07 00:00 (number withheld) block, Mercersburg Road. Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. 00:00 (number withheld) block, Mercersburg Road. 00:03 Cardiac arrest. 00:04 Medic 49. Company 40 . 00:06 That's 1811 responding. 8/15/2026 05:15 AM Medical Emergency Mercersburg Rd, Clear Spring, MD 21722 View on map