A clear or blank image indicates that
A) there was an overexposure to radiation.
B) there was no exposure to radiation.
C) a full denture blocked the film from radiation.
D) the image receptor was accidentally exposed to white light.
B
Explanation: A) If no radiation reached the image receptor, the result is a blank radiograph.
B) If no radiation reached the image receptor, the result is a blank radiograph.
C) If no radiation reached the image receptor, the result is a blank radiograph.
D) If no radiation reached the image receptor, the result is a blank radiograph.
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A 23-year-old roofer has fallen 20 feet from the roof of a house into shrubs below. Aside from superficial abrasions and complaint of soreness, you detect no obvious injuries. Consequently, the patient states that as long as his legs are not broken, he does not see the need to go to the hospital. As a knowledgeable EMT, your best response would be:
A) "Since this is a work-related injury, you should really be evaluated in the hospital. Workman's comp may not cover you if you do not." B) "From a fall of this height, you may have hurt some internal organs. You really need to be examined." C) "Since you did not lose consciousness, I feel better about having you refuse. Just keep an eye on your feet and watch for swelling." D) "Although you feel okay now, you will most likely be sore later on. Why don't we go to the hospital and ask about some medications for pain?"
Hydrogen ion activity can be expressed as which of the following?
a. pH = log10[H–] c. pH = –log10[H+] b. [H+] = log ? 10 d. pH = 1 ? 10?7 mol/L
The personal opinions of the caregivers and the "who, what, when, where, why, and how" regarding the patient's receipt of health care services are the most important components of the patient's medical records
A. True B. False
Two of the MOST common mechanisms of injury for blunt trauma are:
A. low-caliber gunshot wounds and falls. B. falls and motor vehicle collisions. C. gunshot wounds and vehicle ejections. D. motor vehicle collisions and stabbings.