The cycle of electrical impulses—depolarization and repolarization—represents ________
a. one contraction of the myocardium
b. one relaxation of the myocardium
c. one minute of heart activity
d. one heartbeat
d
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Indicate whether the statement is true or false.
What should be as important to an organization as its finances, efficiency, quality, and security?
a. Workplace safety b. Employee compliance c. Employer protection d. Litigation resolution
Which of the following statements about biofilms is true?
A. Biofilms are free-living organisms that reside within body tissues. B. Because biofilms respond predictably to antibiotics they are not considered to be problematic. C. MRSA, or methicillin-resistant Staphylococcus aureus, is a form of biofilm. D. Biofilms are likely to develop resistant organisms.
Thoracic and _____________ surgery includes procedures of the _________ system and thoracic cavity, excluding those that involve the heart and cardiac vessels
A. pulmonary, endocrine C. pulmonary, respiratory B. cardiac, respiratory D. none of the above