7 lines (6 with data), 254 Bytes

f224b 0 128 0 13:36:00 13/12/1988
# Start time=13:36
# First beat=14:57:58.773
# <age-range>: 65-69, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.468,  <RR-high-limit(sec)>: 0.906
# Note: reel-to-reel recording, not flutter-compensated