GI examination Flashcards
what are the clinical signs to look for during general inspection in a GI examination?
- age
- confusion
- pain
- obvious scars
- abdominal distension
- pallor
- jaundice
- hyperpigmentation
- oedema
- cachexia
- hernias
- body habitus
- perspiration
- discomfort
- breathing
- consciousness
what is cachexia?
ongoing muscle loss that’s not entirely reversed with nutritional supplementation; commonly associated with underlying malignancy and advanced malignancy
what objects and equipment should be looked for during general inspection?
- stoma bag
- surgical drains (location and type/volume of contents)
- feeding tubes
- ECG leads, medications, TPN, catheters, IV access
- mobility aids
- vital signs
- FBC
- prescriptions
what should be inspected during hand inspection?
- palms
- nail signs
- finger clubbing
- asterixis
what should be looked for in the palms during hand inspection?
- pallor
- palmar erythema
- Dupuytren’s contracture
what should be looked for in the nails during hand inspection?
- koilonychia
- leukonychia
- Terry’s nails/leukonychia totalis
what is koilonychia?
spoon shaped nails, associated with iron deficiency anaemia
what is leukonychia?
whitening of the nail bed, associated with hypoalbuminaemia; small isolated white patches or striae are often seen in nail plates of normal people in response to minor trauma to the germinal matrix
what are Terry’s nails?
leukonychia totalis; whitening of the entire nail occurs with hypoalbuminaemia
what is finger clubbing?
involves uniform soft tissue swelling of the terminal phalanx of a digit with subsequent loss of the normal angle between the nail and the nail bed
what are the likely causes of finger clubbing in a GI examination?
IBD, coeliac disease, UC, Crohn’s, liver cirrhosis, lymphoma of the GI tract
how do you assess for finger clubbing?
- ask patient to place the nails of their index fingers back to back
- you should observe a small diamond-shaped window (Schamroth’s window)
- when finger clubbing develops, this window is lost
what is Schamroth’s window?
a small diamond-shaped window seen when nails of both index fingers are placed back to back; this is lost in finger clubbing
what is asterixis?
type of negative myoclonus characterised by irregular lapses of posture causing a flapping motion of the hands
what are the likely causes of asterixis in a GI examination?
hepatic encephalopathy (due to hyperammonaemia), uraemia secondary to renal failure, or CO2 retention secondary to type 2 respiratory failure
how do you assess for asterixis?
- ask the patient to stretch their arms out in front of them for 15 seconds
- ask them to cock their hands backwards at the wrist joint and hold the position for 30 seconds
- observe for evidence of asterixis
- a coarse flapping tremor suggests liver failure with failure of ammonia metabolism to urea
what should be palpated in hand palpation?
- temperature
- radial pulse
- Dupuytren’s contracture
what is Dupuytren’s contracture?
involves thickening of the palmar fascia, resulting in the development of cords of palmar fascia which will cause contracture deformities of the fingers and thumb; fibrosis and shortening of the palmar aponeurosis
what should be looked for in arm inspection?
- bruising
- excoriations
- needle track marks
what should be looked for in axilla inspection?
- acanthosis nigricans
- hair loss
what is acanthosis nigricans?
darkening (hyperpigmentation) and thickening (hyperkeratosis) of the axillary skin which can be benign and associated with insulin resistance or GI malignancy
what should be looked for in face inspection?
telangiectasia (hereditary haemorrhagic telangiectasia (HHT/Osler-Weber-Rendu syndrome)) affecting the face, oral mucosa, GI tract, lungs, liver and brain
what should be looked for in eye inspection?
- conjunctival pallor
- jaundice
- corneal arcus
- xanthelasma
- Kayser-Fleischer rings
- perilimbal injection
what is corneal arcus?
a hazy white, grey or blue opaque ring located in the peripheral cornea, typically occurring in patients over 60
what are Kayser-Fleischer rings?
dark rings that encircle the iris, associated with Wilson’s disease
what is perilimbal injection?
inflammation of the area of conjunctiva adjacent to the iris; sign of anterior uveitis, which can be associated with IBD; other features of anterior uveitis are photophobia, ocular pain and reduced visual acuity
what should be looked for in mouth inspection?
- angular stomatitis
- glossitis
- oral candidiasis
- aphthous ulceration
- hyperpigmented macules
- telangiectasia
- dehydration
- halitosis (bad breath)
what is angular stomatitis?
common inflammatory condition affecting the mouth corners, can be caused by iron deficiency; may be caused by deficiency of vitamin B6, B12, folate or iron
what is glossitis?
smooth erythmatous enlargement of the tongue associated with iron, B12 and folate deficiency; painful glossitis is seen in vitamin B12 or folate deficiency, usually painless in iron-deficiency
what is oral candidiasis?
associated with immunosuppression; characterised by pseudomembranous white slough which can be easily wiped away to reveal underlying erythematous mucosa
what is aphthous ulceration?
round or oval ulcers occurring on the mucous membranes inside the mouth; typically benign but can be associated with iron, B12 and folate deficiency and Crohn’s disease
what are hyperpigmented macules?
pathognomonic for Peutz-Jeghers syndrome, an AD disorder that results in polyps in the GI tract