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Question 232 / 323
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qualitycontrol-232
REFERENCE RANGE DETERMINATION — The text gives specific conditions for determining the reference range of a test. What EXCLUSION CRITERIA should be applied when selecting REFERENCE INDIVIDUALS for establishing reference ranges?
A. Exclude only patients with known disease
B. EXCLUDE INDIVIDUALS WITH: DISEASE; RISK FACTORS (obesity, hypertension, risks from environment/occupation/genetics); INTAKE OF PHARMACOLOGICALLY ACTIVE AGENTS (oral contraceptives, alcohol, tobacco, drugs for disease or suffering); SPECIFIC PHYSIOLOGICAL STATES (pregnancy, stress, excessive exercise)
C. Only exclude individuals under 18 years
D. Exclude only individuals on prescription medications
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