Examlex
About ______ of z-scores in the standard normal distribution are within ±1 standard deviations of the mean.
Artifact
An object made by a human being, typically of cultural or historical interest.
Pulse Oximeter
A noninvasive device used to measure the oxygen saturation level of the blood and the heart rate through a sensor attached to the fingertip or earlobe.
Blood Oxygen
A measure of the amount of oxygen carried by the hemoglobin in the blood, typically expressed as a percentage.
ECG Tracing
The graphical representation of the electrical activity of the heart over time, captured by electrodes and displayed by an electrocardiograph.
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