What do we measure to determine the precision of an instrument?
a. Mean measured reference value
b. Difference between the mean measured and actual reference value
c. Range of the mean measured reference value
d. Standard deviation (SD) of the mean measured reference value
ANS: D
A small SD indicates low variability and high precision.
Health Professions
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Standards of on scene trauma care are based on the principle that serious trauma is a:
A) medical disease. B) surgical disease. C) trauma disease. D) psychological disease.
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Which of. The heart rhythms would be least likely to present in an unresponsive patient who you believe has experienced a severe heart attack and is in cardiac arrest?
A. Ventricular tachycardia B. Asystole C. Ventricular fibrillation D. Normal sinus rhythm
Health Professions