Which treatment uses acid concentrations to remove damages layers of skin?
A. Chemical peel
B. Mohs surgery
C. Microdermabrasion
D. Laser resurfacing
Answer: A
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Which North American railroad tank car markings indicate the standards to which a tank car was built?
A. Capacity stencils B. Initials and numbers C. Specification markings D. International markings
Which of the following describes the distribution of lymphocytes within the body?
a. 75% exist in peripheral blood, 25% in lymph nodes and spleen b. 50% exist in the circulating pool, 50% in the marginating pool c. 95% are found in the lymph nodes and spleen, 5% in the peripheral blood d. 80% are short-lived, 20% are long lived
Cushing's reflex is associated with increasing intracranial pressure and is identified by:
A) a combination of hypotension and tachycardia. B) a combination of hypertension and bradycardia. C) a combination of decreased respiration and pulse rate. D) a combination of increased respiration and pulse rate.
The primary purpose of periodontal probing is to determine the extent of detachment of which of the following periodontal structures from the tooth surface?
A) Periodontal ligament fibers B) Gingival fibers C) Junctional epithelium D) Sulcular epithelium