Upon admission to a nursing home, an 85-year-old patient receives a negative result on the purified protein derivative (PPD) test. To determine TB status in the frail elderly, a second PPD should be performed in: 1. 72 hours. 2. 1 week. 3. 3 months. 4. 6 months. {Ans: 1 week}Which of the following is typically observed in the GI system upon stimulation of the parasympathetic nervous system? 1. No overall effect 2. Increased sphincter tone 3. Increased peristalsis 4. Decreased secretions {Ans: increased peristalsis}There are three reasons for latex allergies. Which of the following does NOT cause the problem? 1. Immediate hypersensitivity 2. Irritant contact of dermatitis 3. Cytotoxic hypersensitivity 4. Immune complex reaction {Ans: cytotoxic hypersensitivity}The most common side effect of the oral ribavirin used in the treatment of hepatitis C is: 1. hemolytic anemia. 2. weight loss. 3. depression. 4. hypothyroidism. {Ans: hemolytic anemia}During the past 24 hours, a 62-year-old has experienced abdominal pain that radiates to the back. The patient also reports several episodes of nausea and vomiting, a low-grade temperature, and a history of excessive drinking. Physical examination reveals a distended abdomen. Laboratory serum values indicate elevated alkaline phosphatase, amylase, and serum