​A simple,noninvasive test that measures the patient's pulse rate and oxygen saturation (SAT) level in the blood is:

A) ​vital function
B) ​pulse oximetry
C) ​peak flow
D) ​none of the above

Pulse Oximetry

Measuring the oxygen saturation of arterial blood in a subject by utilizing a sensor attached typically to a finger, toe, or ear to determine the percentage of oxyhemoglobin in blood pulsating through a network of capillaries and that typically sounds an alarm if the blood saturation becomes less than optimal.