7 lines (6 with data), 252 Bytes

e252b 0 128 0 8:55:00 01/08/1988
# Start time=08:55
# First beat=09:25:44.992
# <age-range>: 75-79, <sex>: Male, <medication>: Encainide
# <RR-low-limit(sec)>: 0.617,  <RR-high-limit(sec)>: 0.976
# Note: reel-to-reel recording, not flutter-compensated