7 lines (6 with data), 254 Bytes

e214b 0 128 0 9:30:00 18/03/1988
# Start time=09:30
# First beat=09:31:54.890
# <age-range>: 65-69, <sex>: Female, <medication>: Encainide
# <RR-low-limit(sec)>: 0.585,  <RR-high-limit(sec)>: 0.968
# Note: reel-to-reel recording, not flutter-compensated