List at least two general characteristics of surface water
What will be an ideal response?
Any two of the following:
In general, surface water supply sources tend to:
Have softer water (less minerals) than ground water
Have more suspended solids and color than ground water
Have more bacterial contaminates that ground water
Be more rapidly depleted during periods of low rainfall.
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All the following are true except:
a. Increasing the OID will always result in a noticeable density loss. b. Increasing the OID will reduce the amount of scatter radiation reaching the IR at kVp levels above 60. c. Increasing the OID when imaging an anatomic structure that creates significant scatter radiation will require the mAs to be increased 10% for every centimeter of OID elevation. d. At tube potentials below 60 kVp, an increase in the OID has little if any effect on density.
What is the trigger variable for the Respironics BiPAP Focus?
a. Time c. Volume b. Flow d. Pressure