7 lines (6 with data), 248 Bytes

e212a 0 128 0 14:15:00 21/11/1987
# Start time=14:15
# First beat=14:35:29.765
# <age-range>: 55-59, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.664,  <RR-high-limit(sec)>: 1.085
# Note: reel-to-reel recording, not flutter-compensated