GI investigations Flashcards

1
Q

What are the 4 main principles of investigation?

A

history + examination
differentiate functional + organic
try to do simple, non invasive procedures if possible
justify all investigations as requested

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2
Q

Name some bedside investigations

A

BMI, pulse oximetry, ECG, urinalysis, capillary glucose

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3
Q

What is faecal calprotectin used for?

A

raised in inflammatory conditions and can be used to monitor disease activity

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4
Q

What is faecal elastase used for?

A

investigate pancreatic insufficiency/malabsorption

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5
Q

What can blood analysis be used for?

A

FBC, urea and electrolytes, Calcium and magnesium, LFT, CRP, thyroid, coagulation, haematinics

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6
Q

What can hepatic screen be used for?

A

hepatitis B,C,E

ferritin, alpha fetoprotein

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7
Q

What would a laxative screen be useful for?

A

to see if the problem is due to underlying bulimia

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8
Q

What are 3 different GI breath tests?

A

urea - H pylori
hydrogen - bacterial overgrowth
lactose intolerance

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9
Q

What is oesophageal pH and manometry used for?

A

oesophageal dysmotility and reflux

peristaltic movement

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10
Q

UGIE - preparation, used for and side effects

A

sedation
oesophagus –> duodenum, biopsy, stenting
haemorrhage, perforation and aspiration

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11
Q

What is picolax and what is it given before?

A

strong laxative to prepare bowel before colonography

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12
Q

What is colonoscopy used for and what are risks?

A

rectum –> caecum, biopsy and polypectomy

perforation, haemorrhage and renal impairment

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13
Q

What is ERCP used to look at?

A

ampulla, biliary system and pancreatic ducts

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14
Q

What is ERCP used for?

A

biopsy/cytology, stone removal and stenting

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15
Q

What are the risks of ERCP?

A

pancreatitis, death, haemorrhage, perforation

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16
Q

What are endoscopic ultrasounds used for?

A

diagnose, stage, biopsy and cyst drainage

17
Q

What do enteroscopys look at and used for?

A

small intestine

double or single balloon for biopsy or therapy

18
Q

What is the difference with a capsule enteroscopy?

A

Cannot take biopsies but are less invasive

19
Q

What 2 types of x-ray can be used?

A

CXR, abdomen

20
Q

What are the 3 contrast studies?

A

barium swallow, meal and enema

21
Q

What are some ultrasound scans used?

A

contrast enhanced, endoscopic and pelvic

22
Q

What are 2 examples of image guided radiology?

A

percutaneous drainages and biopsies