Alcohol and alcohol-based prep solutions are volatile and flammable. When alcohol solution or volatile fumes come in contact with heat sources, they can easily cause
A. allergies C. fire
B. chemical burn D. thermal burn
ANS: C
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Off-center neurons
a. Increase their discharge when the central portion of the receptive field is illuminated b. Decrease their discharge when the central portion of the receptive field is illuminated c. Respond only to color d. Do not respond to light contrast
A chemical spray used to preserve a specimen obtained from the body for pathologic examination is a(n) ________.
Fill in the blank(s) with the appropriate word(s).
Terry Stanford is experiencing profuse hematemesis. She was known to have portal hypertension, and her physician has determined that she has bleeding esophageal varices due to the hypertension. Select the appropriate code(s)
401.9 Hypertension 456.20 Esophageal varices with bleeding 572.3 Hypertension, portal 578.0 Hematemesis A) 578.0, 456.20, 572.3 B) 456.20, 401.9 C) 572.3, 456.20 D) 456.20, 572.3, 578.0
Which of the following information obtained during the history taking would lead you to suspect that emphysema is the cause of the patient's respiratory distress?
A) The patient has a history of Marfan's disease. B) History of smoking a pack of cigarettes a day. C) The patient has had a cough and fever for three days. D) You can hear audible stridor upon inhalation.