An ultrasound spatial average intensity of 2.0 Wt/cm2 delivered through a sound head with an area of 5 cm2 will require a power output of ________ watts
A) 1.0 B) 2.0 C) 10.0 D) .25
C
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An aid to the prevention of atherosclerosis would be:
A. to decrease the intake of salt. B. the lowering of fat and cholesterol in the diet. C. to increase the amount of magnesium, calcium, and vitamin in the diet. D. to decrease the amount of carbohydrates in the diet.
The ________ send(s) out electrical impulses to initiate depolarization.
A. SA node B. AV node C. Purkinje fibers D. bundle of His E. bundle branches
What part of a complete urinalysis is considered waived testing and therefore can be performed by phlebotomists?
A. Chemical assessment by dipstick B. Physical component C. Microscopic analysis of sediment D. Manual manipulation of reagents
All of the following tissues or organs are part of the immune system except