Which of the following structures will result in the most radiopaque shadow on the chest radio-graph?
a. Aorta
b. Heart
c. Lungs
d. Ribs
ANS: D
Bone absorbs a large amount of the x-ray beam and is seen as a nearly white (radiopaque) shad-ow.
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The ________ learner learns better by hands-on activities and movement
a. active b. kinesthetic c. visual d. auditory
Which patient has an isolated brain injury that should be considered the most serious?
A) A 31-year-old male who fell from a roof and who is now nonverbal and extends his arms and legs when you pinch the muscles on his shoulder B) A 62-year-old female who fell and hit her head and who is becoming more confused and combative C) A 53-year-old female who crashed her bicycle and who has a large laceration that is bleeding heavily on the back of her head D) A 21-year-old male wearing a deformed motorcycle helmet who does not respond to verbal or painful stimuli after crashing
TRICARE beneficiaries older than age 65 are eligible for TRICARE for Life if they have:
Medicare Part A coverage. Medicare Part B coverage. Medicare Parts A and B coverage. no Medicare coverage.
Chromatin is found in the:
A. Golgi apparatus. B. nucleus. C. centrosome. D. mitochondria.