Gastro extra Flashcards

1
Q

What is the strict definition of acute liver failure and what are the top causes?

A

Liver failure <8 weeks in those with no previous liver disease.
otherwise it is Decompensated liver failure.

Causes:

  • paracetamol overdose
  • Viral hepatitis
  • Idiosyncratic drug reaction
  • Budd Chairi
  • Autoimmune
  • Ischemia
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2
Q

What are the clinical findings and you’re major investigations in a patient with acute liver failure (someone with no known liver disease)?

A
Encephalopathy 
Jaundice 
Hepatic Foetor 
Metabolic acidosis 
Coagulopathy 
Circulatory collapse 

Bloods:

  • FBC
  • Coagulation
  • Glucose
  • U&Es
  • LFTs
  • viral serology
  • paracetamol levels
  • autoimmune markers

Orifices:
- urine cultures

X-rays:

  • US of liver
  • Doppler for Budd Chiari

Special tests:

  • ascitic tap
  • EEG if in doubt about encephalopathy
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3
Q

General management of Acute liver failure?

A

ITU support:

General:

  • Monitor fluid output
  • Monitor Glucose

Encephalopathy:

  • Nurse 30 degree angle
  • Manitol

Hypoglycaemia
- Dextrose with Saline between

Coagulopathy
- Vitamin K

Renal failure:
- Dialysis

**liver transplant?

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4
Q

When draining Ascites when should albumin be given?

A

Every 2.5L drained

other management prior to paracentesis is:

  • fluid/ salt restriction
  • spirolactone
  • albumin
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5
Q

Which drug should be avoided in decompensated liver disease?

A

Gentamicin

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6
Q

In someone with decompensated liver disease with encephalopathy - what things do you want to screen for?

A

Sepsis

  • systemic
  • SBP

Bleeding

Renal failure

Constipation

Medication/ drugs
- anything causing sedation

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7
Q

What can be used to assess a patient in A&E for their alcohol consumption?

A

FAST screening tool

Fast Alcohol Screening Tool *

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8
Q

What is the general management for patients with drawing of alcohol?

A

Screen them using FAST screen
- if low risk they can be discharged with follow up to addiction services

High risk: (previous seizure, high scoring FAST):

Unexceptional group:
(no liver disease, jaundice, COPD, >70, pregnant, head injury)
- fixed dose diazepam for 48 hours

Exceptional group:
(live disease, jaundice, COPD, >70 pregnant, head injury)
- symptom triggered lorazepam

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9
Q

What are the endoscopic findings of coeliac and what is the management

A

Endoscopically:

  • Absence of mucosal folds
  • Scalloping of mucosa

Management:

  • Gluten free diet (wheat, Barley, rae)
  • Ca2+, Vit D and Iron
  • Pneumococcal vaccine

Follow up 12 months

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10
Q

What are the main causes of gastritis?

A
H. Pylori 
NSAIDs 
Alcohol
Pernicious anaemia
Critically ill - reduces gastrointestinal flow
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11
Q

What are the major types of gastritis?

A

H.Pylori
- urease - creates Co2 and ammonia which induces more gastrin.

Erosive:

  • NSAIDs
  • Alcohol

Autoimmune:

  • anti - parietal cell antibodies
  • Anti- intrinsic factor
  • atrophic type

Stress/ Ischemic

  • prolonged critical illness
  • Raise ICP
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12
Q

What are the key symptoms of PBC, what investigations are done and what is the treatment?

A

Female typically:

Fatigue 
Hepatosplenomegaly 
Jaundice 
pigmented xanthelesma 
Athropathy 

Investigations:

  • LFTs (obstructive)
  • IgM Anti - mitochondrial antibodies

Management:

  • cholestyramine
  • Ursodeoxycholic acid
  • liver transplant
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13
Q

What are the key symptoms of PSC, what investigations are done and what is the treatment?

A

Male
Jaundice
RUQ pain
Heptosplenomeglay

Investigations:
- MCRP

Management:

  • liver transplant
  • Ursodeoxycholic acid
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14
Q

What investigations should be done into constipation?

A

Bloods:

  • FBC (malignancy)
  • ESR
  • U&Es - dehydration? Obstruction to kidneys?
  • Ca2+
  • TFTS

Orifices:
- Colonoscopy if suspicion of malignancy

X-ray
- abdominal x-ray for any obstruction

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15
Q

List some causes of constipation:

A

General:

  • Poor diet and excersies
  • Dehydration
  • pain

Colorectal disease:

  • colorectal cancer
  • Anal fissure

Metabolic:

  • Hypercalcemia
  • hypothyroidism

Drugs:

  • opioids
  • Tricyclics (anti-cholinergic)
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16
Q

What are some laxatives which can be used?

A

Bulking agents:

  • Ispaghula husk
  • contraindicated in intestinal obstruction

Stimulator laxatives:

  • Senna
  • Bisacodyl
  • avoided in intestinal obstruction

Osmotic:

  • lactulose
  • avoided in intestinal obstruction
  • electrolyte imbalances
17
Q

What are two methods used to investigate the staging of gastric cancer, and what are the complications of a gastrectomy?

A

CT scan. C/A/P

If negative an oesophageal US can be done to stage locally.

Complications:

  • B12 deficiency
  • CA2+ deficiency
  • Dumping syndrome
18
Q

In an elderly person with achalasia - what can be a cause?

A

Reduced vagal stimulation

19
Q

What investigations can be done to diagnose a hiatus hernia?

A

Endoscopy
- Z line will be seen

CXR
- Bubble sign

Barium swallow

Treatments:

  • lifestyle
  • PPIs

Surgery:

  • Cruroplasty
  • Nissan’s fundoplication
20
Q

List two causes of bowel obstruction seen in HIV and infection which affect G.I system:

A

Enteropathy lymphoma - Burkits
Kaposi’s sarcoma
*typically lead to an intussusception like pathology

CMV
Cryptosporidium Parvum
Mycobacterium avium (TB)

21
Q

What are the causes of chronic pancreatitis and how is it investigated?

A
Alcohol abuse 
CF 
Autoimmune (requires steroids) 
Metabolic - hyperlipidaemia, hypercalcemia 
Strictures 

Investigations:

  • Serum lipases
  • faecal elastase
  • serum amylase (might be moderately raised)
  • HbA1c
  • CT abdomen - calcification
  • note that often neuropathic analgesia is used as treatment
22
Q

What are the stages of liver disease in alcohol? Histologically what is seen in alcohol hepatitis?

A

Steatosis
Hepatitis - painful and enlarged
Cirrhosis (nodular, fibrotic and diffuse)
Hepatocellular carcinoma

Mallory Bodies
Neutrophil infiltration