7 lines (6 with data), 254 Bytes

e183b 0 128 0 11:12:00 13/12/1987
# Start time=11:12
# First beat=11:12:00.828
# <age-range>: 70-74, <sex>: Female, <medication>: Encainide
# <RR-low-limit(sec)>: 0.46,  <RR-high-limit(sec)>: 0.875
# Note: reel-to-reel recording, not flutter-compensated