If the stress test is positive and an angiogram reveals coronary artery disease, the stress test is said to have been a
A) true positive. B) false positive. C) true negative. D) false negative.
A
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All denial letters must meet which of the following criteria?
a. The decision to deny must be correct and based upon approved medical practices. b. The denial reason must be kept private to protect the member. c. HMO-approved denial reasons must be used. d. The denial letter must be sent to the member's parents.
Regarding pulmonary blood flow in the upright lung, which of the following statements is true?
a. The apexes receive approximately 20 times more blood flow than the bases. b. The bases receive approximately 20 times more blood flow than the apexes. c. The greatest blood flow is found at the apexes of the lungs. d. The pulmonary circulation is a high-pressure system.
Which of the following systems are capable of regulating alkaline substances in the blood and restoring chemical buffers used in managing the H+ levels in extracellular fluids?
I. Phosphate buffer system II. Protein buffer system III. Respiratory system IV. Renal system a. III and IV only c. III only b. IV only d. I and II only
All of the following are true of electromagnetic energies EXCEPT:
a. They are illustrated as sinusoidal waves. b .They possess both wave and particle characteristics. c. The relationship between frequency and wavelength is direct and proportional. d. They are arranged in an orderly spectrum according to frequency and wavelength.