Oral squamous cell carcinoma:
a. Is most commonly seen on the dorsum of the tongue
b. Is more common in women than in men
c. Presents typically as a painful recurring ulcer
d. Has been linked etiologically to the use of tobacco in all forms
e. May be preceded by a vesiculobullous eruption
D
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Which of the following should a medical assistant always do?
a. Always protect the patient's modesty. b. Assist any patient who is unable to remove his or her clothing. c. Knock before entering an examination room. d. All of the above
Which of the following is an example of a rash?
A) Acne B) Contact dermatitis C) Psoriasis D) Rosacea
Of the following breath descriptions, which one is considered spontaneous?
a. Flow triggered, pressure limited, flow cy-cled b. Time triggered, volume limited, volume cycled c. Pressure triggered, pressure limited, time cycled d. Patient triggered, patient cycled, baseline pressure +5 cm H2O
The dose required to produce the desired effect on 50% of the subjects tested is:
A. the maximal dose. B. the lethal dose. C. ED50. D. LD50.