Porcelain teeth are ____________
a. less resistant to stain and wear than acrylic teeth
b. more brittle than the acrylic teeth
c. not as noisy when the patient is eating or talking
d. none of the above
b
RATIONALE: Porcelain teeth are more brittle than the acrylic teeth.
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Guidelines for documentation for physical therapy services provided to patients for which reimbursement is from Medicare are:
a. promulgated by the Center for Medicare and Medicaid Services. b. often adopted by nongovernment insurance agencies. c. also applicable to speech therapy. d. all of the above.
What is the minimum amount reduced hemoglobin that must be present for cyanosis to appear?
A. 5 g% B. 1 % C. 3 g% D. 7 g%
Which of the following statements is true about affinity?
a. Is the sum of all attractive forces between antigens and antibodies b. Refers to the binding of one or more antigen-binding sites on an antibody to more than one antigenic determinant on a single carrier c. Refers to the initial force of attraction between one binding site on an antibody molecule and a single epitope of the corresponding antigen d. Results in increased stability of a reaction
Which of these statements about poisonings is correct?
A) A poison is any substance that impairs a person's health by its chemical action B) All toxins are poisonous when in contact with the human body C) The majority of poisonings are intentional and result in homicide or suicide D) The number one cause of poisoning in the United States is medications