Page 50 - Rule Outs in Small Animal Medicine, Problem-oriented Assessment of Problems in Physical Examination and Clinical Pathology, 2nd Edition

Internal Medicine Internal Medicine
Gastrointestinal tract Gastrointestinal tract

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Haematemesis Dark-coloured faeces

Damage of the â Coagulopathy Damage of the muscosa
mucosa of the
intestinal tract pp. 18−19 of the respiratory tract Melaena Ingestion of dark dyes

– Nasal bleeding
Ulceration Neoplasia Mechanical damage – Bleeding from the oral Damage to the wall – Raw liver
– Bismuth
cavity of the oesophagus, Swallowed blood â Coagulopathy
stomach or small pp. 18–19 – Charcoal tablets
intestines

– Gastritis – Foreign body
– Kidney failure
– Liver failure – Enteritis – Nasal bleeding
– Hypoadrenocorticism – Neoplasia – Bleeding from the oral
– Iatrogenic (e.g. therapy – Lesions caused by cavity
with high-dose parasites
glucocorticoids, NSAIDs) – Ulceration
– Mast cell tumour – Foreign body
– Gastrinoma

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