What is a difficulty in relying on referent values or cutoffs in converting a numerical test results into a yes-or-no clinical diagnosis?
A) Test results can fall beyond the cutoff values, leaving the diagnostic question unanswered.
B) The cutoff value is patient-specific and must be calculated for each individual patient.
C) The value considered to be the cutoff is variable depending on the prescribing physician.
D) There is a range of test result values that are shared between those with and without the condition.
D
Health Professions
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Based on Poiseuille's Law, the work of breathing increases by factor of ____ when the radius (r) of the airway is reduced by half its original size.
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