1.Regarding the treatment of recurrent C.difficile infection, which of the following statements is correct A. All patients who develop recurrent diarrhea when they stop taking metronidazole or vancomycin have recurrent C.difficile infection. B. A positive toxin assay in a patient with minimal or no symptoms should not prompt treatment. C. Lactobacillus species and Staphylococcus aureus have shown efficacy in reducing the incidence of simple antibiotic-associated diarrhea D. No passive or active immunization has been used to treat patients with recurrences yet. E. Tolevamer is a high-molecular-weight,inert polymer that has direct antimicrobial activity. Ans (B) 2.What antibiotic is the recommendation for treating severe pseudomembranous colitis? A.IV form vancomycin B.Oral form vancomycin C.Oral form metronidazole D.Clindamycin Ans:B 3.Botulinum Toxin is broken into 7 neurotoxins (labeled as types A, B, C,, D, D, E, F, and G), which type was used for treatment of spasticity in humans? (A) TYPE A (B)TYPE B (C)TYPE C (D)TYPE D ? Ans:(A) 4.Considering A. baumannii,which of the following statement is incorrect? A. AmpC β-lactamases are chromosomally encoded by all A. baumannii. B. Currently, the term “multidrug resistance” in reference to acinetobacter does not have a standard definition. C. A. baumannii is a gram-negative coccobacilli whose natural habitat is warm and humid environment, including water and soil. D. Prolonged colonization(for years) of A. baumannii in patients of only one hospital is most likely due to epidemic outbreak of A. baumannii. Ans: D 5.Which one of the folowings cannot be used to treat Acinetobacter infection A.Unasyn B.Augmentin C.Colistin D.Tigecyclin E.Imipenem Ans.(B) 6.What is the most common subtype in spastic cerebral palsy? (A)diplegia (B)hemiplegia (C)quadriplegia (D)paraplegia Ans:(A) --

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