Answer to Question 1
B
Feedback:
Tinidazole is prescribed for trichomoniasis, which is transmitted during sexual intercourse. The drug should not be used when there is a history of alcohol use. Alcohol use could interfere with the drug's metabolism in the liver and cause toxicity and patients should be warned to avoid consuming all alcoholic beverages while taking this medication. There is no need to question about working conditions unless transmission involved environmental contamination of food and water, which is not indicated by the question. A recent visit to a beach or desert would be indicated if the patient was diagnosed with leishmaniasis and questioning the patient concerning AIDS would be indicated if the patient had a diagnosis of Pneumocystis carinii pneumonia and would not involve trichomonas.
Answer to Question 2
D
Feedback:
If a single step in one of the many enzyme systems is blocked, normal cell function is disrupted. Cell life and cell membrane may be impacted by disruption of some enzymes but not all enzymes. Receptor sites would not be disrupted by disruption in a single step in the enzyme system.
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