Scleroderma, rheumatoid arthritis, and systemic lupus erythematosus are all examples of what type of disease group?
a. Asbestos-associated illnesses
b. Connective tissue diseases
c. Hypersensitivity pneumonitis
d. Pneumoconiosis
ANS: B
Interstitial lung disease is a well-known complication of various connective tissue diseases. The most commonly implicated disorders are scleroderma, rheumatoid arthritis, Sjögren's syndrome, polymyositis/dermatomyositis, and systemic lupus erythematosus.
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Sodium and calcium are examples of
a. Metals that burn in oxygen to form their corresponding metallic oxides b. Nonmetals that burn in oxygen to form their corresponding nonmetal oxides c. Metallic oxides that reacts with water to produce an acid d. Nonmetal oxide that reacts with water to produce a base
Which of the following microscopic procedures requires high contrast and lower light?
a. Examining unstained objects (e.g., urine sediments) b. Evaluating red cell morphology c. Manual differentials d. Platelet estimates