7 lines (6 with data), 247 Bytes

f045a 0 128 0 8:30:00 17/07/1988
# Start time=08:30
# First beat=08:52:07.937
# <age-range>: 40-44, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.421,  <RR-high-limit(sec)>: 1.093
# Note: reel-to-reel recording, not flutter-compensated