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58 CHRONIC VOMITING IN CATS PEER REVIEWED 1. Vomiting can be distinguished from regurgitation by a. association with eating. b. presence of food in vomitus. c. frequency of occurrence. d. presence of nausea or ptyalism. 2. _______ testing has the highest sensitivity for detecting heartworm infection in cats. a. Modified Knott b. Serum antibody c. Serum antigen d. Serum antibody with antigen 3. Thyroid hormone quantitation should be performed in _____ cats with chronic vomiting. a. juvenile b. adult c. geriatric d. all 4. Diffuse thickening of the muscularis mucosa without concurrent clinical signs of disease necessitates advanced diagnostics such as endoscopy. a. True b. False 5. Ultrasonographic small intestinal thickening of _____ cm is generally considered clinically significant. a. ≥0.08 b. ≥0.10 c. ≥0.18 d. ≥0.28 6. A duration of _____ is appropriate for a diet trial to rule out food responsive disease in most cats. a. 2 days b. 2 weeks c. 2 months d. 4 months 7. Approximately what percentage of cats with food responsive disease relapse when rechallenged with their original diet? a. 25% b. 50% c. 75% d. 100% 8. Tissue in which area of the gastrointestinal tract is inaccessible via endoscopy? a. Stomach b. Duodenum c. Ileum d. Jejunum 9. Because endoscopy does not allow collection of full-thickness biopsy specimens, it has low diagnostic value for cases with diffuse muscularis propria thickening. a. True b. False 10. Fenbendazole is ineffective for treatment of which of the following parasites? a. Ancylostoma species b. Dipylidium species c. Toxascaris species d. Trichuris species Chronic Vomiting in Cats: When to Recommend Endoscopy LEARNING OBJECTIVE After reading this article, participants will be able to categorize common causes of chronic vomiting in cats, create a systematic diagnostic plan, and distinguish when endoscopy is warranted. The article you have read has been submitted for RACE approval for 1 hour of continuing education credit and will be opened for enrollment when approval has been received. To receive credit, take the approved test online for free at vetfolio.com/journal-ce . Free registration on VetFolio.com is required. Questions and answers online may differ from those below. Tests are valid for 2 years from the date of approval. 55. Willard MD, Jergens AE, Duncan RB, et al. Interobserver variation among histopathologic evaluations of intestinal tissues from dogs and cats. JAVMA 2002;220(8):1177-1182. 56. Kiupel M, Smedley RC, Pfent C, et al. Diagnostic algorithm to differentiate lymphoma from inflammation in feline small intestinal biopsy samples. Vet Pathol 2011;48(1):212-222. 57. Moore PF, Rodriguez-Bertos A, Kass PH. Feline gastrointestinal lymphoma: mucosal architecture, immunophenotype, and molecular clonality. Vet Pathol 2012;49(4):658-668. 58. Pohlman LM, Higginbotham ML, Welles EG, et al. Immunophenotypic and histologic classification of 50 cases of feline gastrointestinal lymphoma. Vet Pathol 2009;46(2):259-268. 59. Gabor LJ, Canfield PJ, Malik R. Immunophenotypic and histological characterisation of 109 cases of feline lymphosarcoma. Austral Vet J 1999;77(7):436-441. 60. Scott KD, Zoran DL, Mansell J, et al. Utility of endoscopic biopsies of the duodenum and ileum for diagnosis of inflammatory bowel disease and small cell lymphoma in cats. J Vet Intern Med 2011;25(6):1253-1257.