Why should cassettes and intensifying screens be examined prior to use?
What will be an ideal response?
To check the hinges and snaps of the cassette for light tightness. Check rigid cassettes for warping. Check for cleanliness and scratches of the intensifying screens. If cassettes are warped, there will not be close screen-film contact and images will be blurry. Debris on screens results in radiopaque artifacts. Scratched screens will not produce the light needed to expose the films.
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The physician who invented the ECG was:
A) Alexander Wood. B) Willem Einthoven. C) Crawford W. Long. D) D. D. Palmer.
________, or high blood pressure, is a term used to describe a blood pressure that is higher than 140/90
a. Hypotension b. Dehydration c. Osmosis d. Hypertension
Which statement made by the EMT shows an understanding of how an open wound should be bandaged?
A) "Bandages are sterile gauze pads used to stop bleeding." B) "I use bandaging material to secure the sterile dressing in place." C) "You must always make sure that the bandage is sterile." D) "After you apply a bandage, you should place a dressing over it."
While attempting to draw blood from an indwelling arterial catheter, the respiratory therapist no-tices a dampened waveform and has difficulty withdrawing blood for sampling. What should the respiratory therapist's immediate action be?
a. Flush the catheter. b. Remove the catheter. c. Reposition the catheter. d. Recalibrate the transducer.