Author Question: What is the greatest hazard of pulse oximetry? a. False results leading to incorrect decisions ... (Read 50 times)

cdr_15 · **on:** Jul 16, 2018

What is the greatest hazard of pulse oximetry?

a. False results leading to incorrect decisions
b. Pressure sores at the measuring site
c. Skin burns due to using incompatible probes
d. Electrical shock at the measuring site

Question 2

While monitoring an active infant through a transcutaneous blood gas system, you notice a rapid rise in PtcO2 from 63 to 145 mm Hg. At that same time, the (PtcCO2) drops from 35 to 7 mm Hg. What is the most appropriate action in this case?

a. Perform a quick assessment of the infant's airway.
b. Stabilize the infant and call for emergency assistance.
c. Check the sensor for air leaks or dislodg-ment.
d. Remove the sensor and recalibrate the in-strument.

ambernicolefink · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: A
To guide practitioners in providing quality care, the AARC has published Clinical Practice Guideline: Pulse Oximetry. Modified excerpts from the AARC guideline appear on p. 389.

Answer to Question 2

ANS: C
Proper sensor-electrolyte contact is essential, as is proper application to the skin surface. A loose-ly applied sensor may have air leaks or may become dislodged. In either case, the resulting meas-urements will approach those in room air:
PO2 = 159 mm Hg
PCO2 = 0 mm Hg