The two most frequent causes of ulcers are
a. Helicobacter pylori and stress.
b. Helicobacter pylori and smoking.
c. Helicobacter pylori and NSAIDs.
d. Helicobacter pylori and alcohol.
c. 90% of ulcers are caused by Helicobacter pylori. The other causative factor (10%) is use of nonsteroidal anti-inflammatory drugs (NSAIDs) such as aspirin and ibuprofen, which affect the mucosal defenses.
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Which of the following is an abnormal spinal curvature that may appear during childhood and adolescence?
A) Lordosis B) Scoliosis C) Kyphosis D) All of the above
Building department inspectors are usually sworn (uniformed) personnel
A. True B. False
The receptionist is often responsible for taking care of office equipment including ________.
A. copiers B. computers C. printers D. All of these
Passive filling of the coronary arteries occurs during:
A. ventricular diastole. B. atrial diastole. C. ventricular systole. D. ventricular contraction.