7 lines (6 with data), 253 Bytes

f155b 0 128 0 8:30:00 10/06/1988
# Start time=08:30
# First beat=08:38:26.296
# <age-range>: 65-69, <sex>: Male, <medication>: Flecainide
# <RR-low-limit(sec)>: 0.562,  <RR-high-limit(sec)>: 1.195
# Note: reel-to-reel recording, not flutter-compensated