pts mock 2 Flashcards
What is the imaging of choice for diverticulitis
CT ab/pelvis with contrast. Would demonstrate a thickened bowel wall
Diverticulitis management
- Mild presentation: oral antibiotics, analgesia, low residue or liquid diet
- Severe presentation:
- Supportive management:NBM, IV fluids and analgesia
- IV antibiotics:co-amoxiclav is typical but depends on local guidelines
- Acute PR bleeding: transfuse blood products and arrange angiographic embolisation (blocks blood vessels) if available, otherwise, surgery is required
- Surgery: if bleeding is not controlled or perforation is present, emergency surgical resection is required e.g. Hartmann’s procedure (removing the affected section of the bowel and creating an alternative path for faeces to be passed).
- Diverticular abscess: radiological drainage or surgery
- Recurrent diverticulitis: elective colonic resection
colonoscopy of crohn’s
- Mucosal inflammation, deep ulcers, skip lesions and cobblestone mucosa
- Histology: transmural inflammation, granulomas and goblet cells
Maintaining remission of Crohn’s
1st line: Azathioprine or Mercaptopurine
2nd line:Methotrexate, Infliximab, Adalimumab
Post-surgery: consider azathioprine, with or without methotrexate
Colonoscopy of UC
- Red and raw mucosa with widespreadshallow ulceration
- No inflammation beyond the submucosa, unless fulminant disease
- Lamina propria inflammatory cell infiltrates
- Pseudopolyps: mucosa adjacent to ulcers is preserved, which has the appearance of polyps
- Crypt abscessesdue to neutrophil migration through gland walls
- Goblet cell depletion, withinfrequent granulomas
What is the scoring system for ulcerative colitis
Truelove and Witts’ severity index
management for ulcerative colitis
Mild = 1st line aminosalicylate and 2nd line corticosteroids (if limited to the sigmoid flexure - proctosigmoiditis and left-sided colitis- use a topical aminosalicylate, for extensive - from proximal to the sigmoid - use topical and high dose oral) Acute severe (any site) = 1st line IV corticosteroid and 2nd line IV ciclosporin Maintenance = aminosalicylate, azathioprine, mercaptopurine
Surgery for people with ulcerative colitis
- Colectomy may be required: leaves patient with J-pouch (can be reversed) or ileostomy.
- J- pouch: ileoanal anastomosis, colon removed and rectum fused to ileum
- Ileostomy: colon and rectum are removed and the ileum brought out on
to the abdominal wall as a stoma
Tubulo-interstitial causes of AKI
usually due to acute tubular necrosis (ATN). Other tubulointerstitial causes include acute interstitial nephritis that can occur secondary to medications (e.g. NSAIDs, PPI’s, penicillins) and infections. This typically leads to damage to the renal parenchyma that can lead to scarring and fibrosis in the long-term.
what levels are assessed before starting azathioprine or mercaptopurine
Thiopurine methyltransferase (TPMT)
signs of nephritic syndrome in AKI
Nephritic syndrome: haematuria; proteinuria; oliguria and hypertension
signs of tubulo-interstitial disease in AKI
arthralgia, rashes and fever
complications of AKI
hyperkalaemia, fluid overload, metabolic acidosis, uraemia, Uraemic complications
how do you protect the myocardium with hyperkalaemia
- Protection of the myocardium:10ml of 10% calcium gluconate.
- Reduce extracellular potassium: aim is to drive potassium into the intracellular compartment. Insulin and beta agonists (e.g. 2.5mg nebulised salbutamol) are given.
- Additional: stop or adjust potassium-sparing or potassium-containing medications. Resins can reduce potassium absorption but these takehours/days to have effect.
treatment of metabolic acidosis
sodium bicarbonate or dialysis
Give examples of nephrotoxic drugs
ACEi, NSAIDs, Spironolactone
Prostatitis (acute) medication
- Antibiotics: courses typically 14 days
- First line:Oral ciprofloxacinor ofloxacin
- Second line:Oral levofloxacin or co-trimoxazole
- IV antibiotics: for patients with significant infection under microbiology guidance.
- TRUSS guided abscess drainage, if needed
reiter’s syndrome triad
Reactive Arthritis
urethritis, arthritis and conjunctivitis (might also get mouth ulcers)
Typically get acute, asymmetrical monoarthritis, typically in the lower leg
Budd-Chiari syndrome presentation
presents with abdominal pain, ascites and liver enlargement
Saint’s triad
hiatus hernia, cholelithiasis and colonic diverticulosis