Which of the following statements is considered false in relation to the use of palladium catalysts?
A) Catalysts must be rejuvenated after each use.
B) Catalysts can be rejuvenated by heating for two hours at 165°C.
C) There is no need for the use of a methylene blue strip.
D) Metabolic by-products, such as H2S, can render the catalysts ineffective.
C
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A condition caused by narrowing of the vertebral discs and gradual collapse of the osteoporotic thoracic vertebral bodies is:
a. kyphosis b. scoliosis c. spondolysis d. thoracosis
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Patients with closed head injuries often have pupillary changes and
A. paralysis B. paresthesia C. hypertension D. tachycardia
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