What is the one definitive test to diagnose rheumatoid arthritis?
One test is not definitive
A positive rheumatoid factor (RF)
An elevated erythrocyte sedimentation rate (ESR)
A positive antinuclear antibody (ANA)
The Correct Answer is A
A. While tests like RF, ESR, and ANA can indicate the presence of rheumatoid arthritis or autoimmune activity, no single test is definitive for diagnosing RA.
B. A positive rheumatoid factor is common in RA but can also be found in other conditions, making it not exclusively diagnostic.
C. An elevated ESR indicates inflammation but is nonspecific and not solely indicative of rheumatoid arthritis.
D. A positive ANA is associated with various autoimmune diseases and is not specific to RA.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Tertiary prevention involves managing and mitigating the effects of an established disease or condition, which does not apply here.
B. Secondary prevention focuses on early detection and treatment of diseases, but wearing a helmet is about preventing injury rather than detecting it.
C. None of these would imply that there is no relevant level of prevention being demonstrated, which is incorrect.
D. Primary prevention aims to prevent the onset of disease or injury, and wearing a helmet while biking is a proactive measure to prevent head injuries.
Correct Answer is B
Explanation
A. Pathology refers to the study of the causes and effects of disease, but does not specifically focus on functional alterations.
B. Pathophysiology examines the functional changes that occur in the body as a result of a disease or injury, making it the correct choice.
C. Physiology is the study of normal biological function, not necessarily related to alterations caused by disease.
D. Morphology refers to the form and structure of organisms, which does not address functional changes directly.
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