7 lines (6 with data), 246 Bytes

e055a 0 128 0 14:15:00 25/02/1988
# Start time=14:15
# First beat=14:36:06.312
# <age-range>: 50-54, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.687,  <RR-high-limit(sec)>: 1.5
# Note: reel-to-reel recording, not flutter-compensated