Initial experience with a respiratory therapist arterial line placement service

Respir Care. 2000 May;45(5):482-5.


Background: Indwelling arterial lines are commonly used in critical care. To standardize and improve the placement of these devices, we developed and implemented a respiratory therapist-based line placement service. As a measure of the quality of the service, we assessed the success and complications encountered in the first 119 line placement attempts of this new service.

Methods: The following were recorded for each artery on which cannulation was attempted: the number of the attempt on which cannulation was successful; if a different person was able to cannulate the artery after initial failure; and whether any complications occurred. Success rate compared to the number of attempts was tested with chi-square.

Results: Respiratory therapists were successful in placing 80% of attempted lines on the first try, including all 18 of 18 dorsal pedis attempts. Ninety-seven percent (115 of 119) of attempted arteries were ultimately cannulated. Success on second attempts by the same person was less than if a different, more experienced, person attempted the placement (p = 0.024). No complications were identified during the study.

Conclusions: Initiation of a respiratory therapist-based arterial line placement service resulted in an acceptable cannulation success rate, without complications. Increased experience of the person attempting cannulation correlates with improved success.

Publication types

  • Comparative Study

MeSH terms

  • Arteries
  • Catheterization, Peripheral / instrumentation
  • Catheterization, Peripheral / methods*
  • Catheters, Indwelling*
  • Critical Illness
  • Foot / blood supply
  • Humans
  • Practice Patterns, Physicians'
  • Quality Assurance, Health Care
  • Respiratory Care Units
  • Respiratory Therapy / methods*