Gasteroenterology Flashcards
Give two signs Coeliac disease is often associated with.
Iron deficiency anaemia
Non specific diarrhoea
How do we test for Coeliac disease?
Using tTG IgA antibodies
tTG = Tissue transglutaminase antibody
; Coeliac disease is autoimmune
What is the Gold standard for diagnosing Coeliac disease?
Give two features you may see.
Duodenal biopsy.
Villus atrophy (smaller villi).
Crypt hyperplasia
What is IBD?
Inflammatory bowel disease.
Umbrella term for Crohn’s disease and Ulcerative Colitis.
Inflammation of the GI Tract.
What are Crohn’s and Ulcerative Colitis NOT?
IBS
Give two differences between Ulcerative Colitis and Crohn’s disease?
Crohn’s disease = affects the entire GI tract and is transmural inflammation.
Ulcerative Colitis = only affects the large colon and there is no inflammation beyond the submucosa. Starts working from the rectum upwards.
How does smoking affect Crohn’s disease and Ulcerative Colitis risk?
Smoking increases the risk of Crohn’s disease.
Smoking decreases the risk of Ulcerative Colitis.
Which medication increases the risk of Crohn’s disease/Ulcerative Colitis?
NSAIDs
Give one key sign of IBD.
Erythema nodosum
What is the Gold standard in diagnosing Crohn’s disease?
Colonoscopy (cobblestone appearance)
What is the Gold standard in diagnosing Ulcerative Colitis?
Colonoscopy and biopsy. (need biopsy in UC!)
How do we treat Crohn’s disease?
Stop smoking
Corticosteroids to reduce inflammation: Prednisolone/ Budenoside
Aminosalicylate, azathioprine
For maintenance: Azathioprine.
How do we treat Ulcerative Colitis?
5- ASAs. Topical then oral.
In acute admission of UC, treat as an emergency with:
IV Corticosteroids/Ciclosporin/infliximab
What is the Gold standard in diagnosing Colorectal Carcinoma?
Colonoscopy and biopsy.
What is the acronym in identifying Red flag symptoms?
Fatigue Lethargy Appetite loss Weight loss Sweats (night)
What is one clear way to differentiate between gastric and duodenal ulcers?
Gastric = worse after eating Duodenal = relieved by eating
What are patients with Ulcerative Colitis at risk of even once treated?
Adenocarcinoma so give regular colonoscopies after 10 years.
osce question. How do we investigate for a suspected peptic ulcer?
Full Blood count
U&Es for dehydration/ bleed
Upper GI endoscopy
Biopsy
What is the main treatment for peptic ulcers
PPIs.
What is a key feature in a history which may indicate pancreatitis?
Heavy drinking
Epigastric pain radiating to the back - what are 2 key differentials?
AAA - Abdominal aortic aneurysm
Pancreatitis.
What are the investigations to look at in acute pancreatitis?
Amylase
Lipase
Ultrasound for ?gallstone
What are the two most common causes of acute pancreatitis?
Heavy drinking
Gallstones
What are the key markers in acute pancreatitis Vs. chronic pancreatitis?
Acute = high amylase Chronic = reduced elastase