Interference in a pulse oximeter from a fiberoptic light source

Abstract

A healthy patient who was undergoing cystoscopy suddenly showed a rapid increase in heart rate on a pulse oximeter. The cause was determined to be incident light from the light source for the cystoscope.

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Reference

  1. 1.

    Brooks TD, Paulus DA, Winkle WE. Infrared heat lamps interfere with pulse oximeters. Anesthesiology 1984;61:630

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Correspondence to Frank E. Block Jr MD.

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Block, F.E. Interference in a pulse oximeter from a fiberoptic light source. J Clin Monitor Comput 3, 210–211 (1987). https://doi.org/10.1007/BF01695946

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Key words

  • Equipment: alarms
  • interference
  • fiberoptic light
  • Measurement techniques: pulse oximetry
  • Monitoring: oxygen