Which of the following patients in respiratory distress?
a. infant breathing 70 times/minute
b. child breathing 30 times/minute
c. infant breathing 50 times/minute
d. child breathing 40 times/minute
A
Health Professions
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Optical shunting during pulse oximetry may be caused by which of the following?
a. Dark skin pigmen-tation c. Hyperbilirubinemia b. Light skin pigmen-tation d. Hyponatremia
Health Professions
Which of the following statements is true concerning the operation of a transcutaneous carbon dioxide electrode?
a. PtcCO2 readings are slightly lower than the PaCO2 value. b. Electrodes should be calibrated when they are repositioned. c. Heating the transcutaneous PCO2 (PtcCO2) to 43°C will adversely affect its operation. d. Before its use, the electrode should be calibrated to 20% and 40% CO2.
Health Professions