Which of the following would most likely be associated with the situation described in Question 11?
a. Operator error
b. Fading light source
c. Instrument miscalibrated
d. Starting a new lot number of thromboplastin reagent
ANS: D
Shifts can occur when a new reagent is introduced. A fading light source would lead to trend error. If the instrument were calibrated incorrectly, then both controls should be out; likewise, operator error would result in both controls being unacceptable.
Health Professions
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Bariatrics is defined as the branch of medicine that deals with the cause, prevention, and treatment of which of the following diseases?
A) Diabetes B) Blindness C) Sleep apnea D) Obesity
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