What are the two principles of operation for pulse oximetry? 1. Photoplethysmography 2. Tonometry 3. Spectrophotometry 4. Amperometry 5. Potentiometry
a. 1 and 3 c. 1 and 5
b. 2 and 4 d. 3 and 5
ANS: A
Pulse oximetry is based on the principles of spectrophotometry and photoplethysmography.
Health Professions
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What is the most common sign associated with the transient glottic edema or vocal cord inflam-mation that follows extubation?
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