- The two options for DURATION select 15 minutes or 24 hours as the desired duration of data collection. This parameter applies only to the TYPE setting of Rate v. Time. 15 MINUTE - 15 minutes of rate data are collected in the Atrium and/or Ventr. If A. and V. collection, 1 rate sample is collected every 4 seconds, if Single chamber collection 1 rate sample is collected every 2 seconds. 24 HOURS - 24 hours of rate data are collected in the Atrium and/or Ventr. If A. and V. collection, one minimum rate and maximum rate range is collected every 12 minutes, if single chamber every 6 minutes. [9877-help 7940_duration.hlp]

• Synonym: standing