At 61 years of age and older, which of the following physiological changes takes place?
a. Cortisol from the adrenal cortex is diminished by 50 percent.
b. There is a 25 to 30 percent decrease in kidney mass.
c. An increase in neurotransmitters in the nervous system results in a decrease in coordination.
d. The ear canal atrophies, and the eardrum thins.
b
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Which of the following is classified as hazardous waste?
A) Infectious and chemical materials B) Solids, infectious, chemical, and radioactive materials C) Radioactive and infectious materials D) Chemical and radioactive materials
A normal sinus rhythm at a rate greater than 100 beats per minute is called:
a. normal sinus. b. sinus bradycardia. c. sinus tachycardia. d. superventricular tachycardia.
Total magnification of the microscope is the ocular magnification multiplied by the:
A) user's eye. B) available light. C) lens strength. D) objective used.
Answer the following statement(s) true (T) or false (F)
1. An ophthalmic assistant performs simple vision testing, takes medical histories, administers eye drops, and changes dressings. 2. A medical transcriptionist assists medical professional and technical personnel by performing secretarial and clerical support. 3. The American Pharmaceutical Association represents the interest of pharmaceutical professionals. 4. Nuclear medicine is a specialty that uses radiation to reveal organ structure and function. 5. Painless nuclear medicine procedures are used to diagnose endocrine problems such as hyperthyroidism and diabetes.