GI Flashcards

(207 cards)

1
Q

what is dysphagia

A

difficulty swallowing

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2
Q

what is odynophagia

A

painful swallowing

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3
Q

what are the broad causes of dysphagia

A

mechanical block
motility
others

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4
Q

what are mechanical causes of dysphagia

A

oesophageal strictures
malignancy - oes/gastric
extrinsic pressure: nodes, lung Ca, goitre, aortic aneurysm, pharyngeal pouch

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5
Q

what are motility causes of dysphagia

A

achalasia
diffuse oesophageal spasm
systemic sclerosis
neurological: MND, MG, PD, syringobulbia

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6
Q

what are other causes of dysphagia

A

oesophagitis - reflux, candidiasis, eosinophilic

globus

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7
Q

5 key questions to ask in dysphagia

A
  1. was there difficulty swallowing both solids and liquids from the start
  2. is it difficult to make the swallowing movement
  3. is swallowing painful
  4. is it intermittent or constant
  5. does the neck bulge or gurgle on drinking
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8
Q

D.Dx of dysphagia with difficulty swallowing both liquids and solids from the start

A

motility disorders e.g. achalasia

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9
Q

D.Dx of dysphagia with difficulty in making swallowing movement

A

neurological e.g. bulbar palsy

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10
Q

D.Dx of dysphagia with odynophagia

A

cancer
stricture
candidiasis
spasm

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11
Q

D.Dx of dysphagia with intermittent vs constant symptoms

A

intermittent - spasm

constant - stricture, cancer

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12
Q

D.Dx of dysphagia with gurgling/bulging

A

pharyngeal pouch

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13
Q

investigations for dysphagia

A
FBC
U+E 
CXR - mediastinal mass? 
OGD +- biopsy 
barium swallow/fluoroscopy 
oesophageal manometry
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14
Q

symptoms of diffuse oesophageal spasm

A

intermittent dysphagia and chest pain

corkscrew appearance on barium swallow

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15
Q

what is achalasia

A

lower oesophageal sphincter fails to relax
degeneration of myenteric plexus
dysphagia to solids and liquids, regurgitation, weight loss
dilated tapering / ‘bird’s beak appearance’ oesophagus on barium swallow

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16
Q

management of achalasia

A

endoscopic balloon dilatation
Heller’s cardiomyotomy
PPIs
botox injection

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17
Q

causes of oesophageal strictures

A

longstanding GORD
radiotherapy
corrosives

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18
Q

what is globus sensation

A

non painful sensation of a lump/tightness/foreign body in the pharyngeal area

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19
Q

what is globus

A

functional oesophageal disorder characterised by globus sensation without any underlying structural abnormality

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20
Q

dysphagia is a normal part of ageing?

A

no

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21
Q

associated symptoms of dysphagia

A
heartburn 
weight loss 
haematemesis 
anaemia 
regurgitation of food 
respiratory symptoms
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22
Q

what is GORD

A

gastro-oesophageal reflux disease

incompetent LOS leading to reflux of acidic stomach contents back into the oesophagus

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23
Q

RF for GORD

A
abdominal obesity 
alcohol 
smoking 
pregnancy 
drugs - tricyclics, anticholinergics
hiatus hernia 
H. pylori (Gm-)
gastric acid hypersecretion 
systemic sclerosis
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24
Q

complications of GORD

A

oesophagitis
strictures
Barrett’s oesophagus
oesophageal (adeno)carcinoma

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25
symptoms of GORD
``` heartburn - retrosternal discomfort after a meal belching salivation odynophagia nocturnal asthma chronic cough laryngitis - hoarse voice ```
26
What is Barrett's oesophagus
metaplasia of stratified squamous epithelium of the oesophagus to glandular columnar epithelium similar to that of the gastric/intestinal mucosa occurs after longstanding GORD
27
RF for Barrett's oesophagus
``` GORD obesity smoking M>F alcohol FH ```
28
which part of the oesophagus does Barrett's oesophagus affect
lower 1/3rd
29
investigations of GORD
``` endoscopy Ba swallow (hiatus hernia) oesophageal manometry and pH studies ```
30
GORD is more likely to cause adeno / squamous cell carcinoma of the oesophagus
adenocarcinoma (glandular)
31
what are the steps in the pathogenesis of adenocarcinoma of the oesophagus
normal oesophagitis (reversible) Barrett's adenocarcinoma
32
lifestyle modifications in the management of GORD
``` smoking cessation lose weight prop up the bed head reduce alcohol avoid provoking factors small regular meals avoid eating right before bed ```
33
pharmacological symptomatic relief for GORD
antacids | have no healing benefit
34
What medications can be used for GORD that have healing and symptomatic relief
PPIs | e.g. omeprazole, lansoprazole, esomeprazole
35
what surgical procedure is available for GORD
Nissen fundoplication
36
Barrett's oesophagus is ir/reversible
irreversible
37
management of oesophageal dysplasia
``` more frequent surveillance optimaise PPI dose endoscopic mucosal resection (EMR) radiofrequency ablation argon ```
38
what is a hiatus hernia
the fundus of the stomach slides through a weakness in the diaphragm
39
what is gastroparesis
delayed gastric emptying
40
symptoms of gastroparesis
feeling of fullness N+V weight loss upper abdominal pain
41
causes of gastroparesis
``` idiopathic DM cannabis medications - opioids, anticholinergics systemic sclerosis ```
42
investigation for gastroparesis
gastric emptying studies
43
management of gastroparesis
``` remove precipitating factors liquid diet eat small regular meals promotility agents gastric pacemaker ```
44
how can patients with Barrett's oesophagus be surveilled
endoscopy with biopsy
45
Barrett's oesophagus is a premalignant condition for oesophageal adenocarcinoma, true or false
true
46
what is dyspepsia
epigastric pain/burning postprandial fullness early satiety
47
what are the ALARM Symptoms?
``` A - anaemia L - loss of weight A - anorexia R - recent onset M - malaena/haematemesis S - swallowing difficulties ```
48
RF for dyspepsia
H.pylori infection | NSAID use
49
broad causes of dyspepsia
organic | functional
50
organic causes of dyspepsia
PUD gastric cancer drugs - NSAIDs H. pylori infection
51
what is functional dyspepsia
all the symptoms of dyspepsia with no underlying organic pathology usually associated with IBS normal endoscopy and H. pylori -
52
dyspepsia is burning in the epigastrium and retrosternal pain?
NO, only epigastric burning NO retrosternal pain
53
management of dyspepsia
in the absence of ALARM Symptoms: consider lifestyle advice and antacids H. pylori test and treat
54
management of dypepsia with ALARM Symptoms or >=55yr
refer to hospital specialist
55
symptoms of PUD
``` dyspepsia epigastric pain radiating to the back nocturnal symptoms aggravated/relieved by eating relapsing and remitting ```
56
which is more common duodenal or gastric ulcers
duodenal > gastric
57
duodenal ulcers are aggravated/relieved by eating and gastric ulcers are aggravated/relieved by eating
duodenal - relieved by eating | gastric - aggravated by eating
58
RF/causes of PUD
H. pylori drugs - NSAIDs, steroids, SSRIs gastric acid hypersecretion smoking
59
what is H. pylori
Gm - microaerophilic spiral flagellated bacilli | oral-oral / faecal-oral spread
60
complications of H. pylori infection
nothing PUD gastric cancer - adenocarcinoma, MALToma
61
how long should you stop PPIs before OGD
2 weeks
62
investigation for H. pylori
13C urea breath test OR stool antigen test OR lab serology (not very accurate)
63
investigation for H. pylori retesting following eradication therapy
13C urea breath test
64
management of H. pylori
7 days of BD: - PPI + - amoxicillin + - metronidazole or clarithromycin (or PPI and M + C is penicillin allerguc)
65
H. pylori increases the pH of its environment, true or false
true | urease causes production of ammonium bicarbonate
66
complications of PUD
anaemia bleeding perforation fibrosis - gastric outlet obstruction
67
what is haematemesis
vomiting of blood from the upper GI tract
68
what is malaena
black tarry stools from upper GI bleeding
69
Rockall score is pre/post endoscopic
pre endoscopic | Blatchford is post endoscopic
70
RF/common causes of upper GI bleeding
``` PUD oesophageal varices Mallory-Weiss tear oesophagitis gastritis duodenitis drugs - NSAIDs, steroids, anticoagulants malignancy ```
71
initial management of upper GI bleeding
``` ABCDE IV access with large bore cannula - IV fluids and bloods oxygen assess patient for stigmata or bleeding and cirrhosis urine output - catheter check drugs do Rockall/Blatchford score ECG, CXR Major haemorrhage protocol? transfusion IV omeprzole ? ```
72
what investigation should be done for upper GI bleeding
endoscopy - identifies cause - therapeutic manoeuvres - assess risk of re bleeding
73
definitive management of bleeding peptic ulcers
``` endoscopic: adrenaline injection heater probe coagulation clips haemospray IV omeprazole IR, surgery ```
74
blood tests for upper GI bleeding
``` FBC U+E LFT CRP urea clotting crossmatch ABG ```
75
definitive management of variceal bleeding
``` IV terlipressin endoscopic variceal ligation - banding sclerotherapy Sengstaken-Blakemore balloon / balloon tamponade - if all fails TIPS - IR transplant ```
76
considerations for variceal bleeding
``` reverse anticoagulation IV pabrinex antibiotics replace electrolytes delirium tremens hypoglycaemia ```
77
what is TIPS procedure
transjugular intrahepatic portosystemic shuny | connects the portal vein to the hepatic vein to bypass the liver
78
bleeding PU - adrenaline/terlipressin | bleeding varices - adrenaline/terlipressin
ulcer - adrenaline | varices - terlipressin
79
prophylaxis of variceal bleeding
non-selective B blocker e.g. propranolol | repeat banding
80
What is haematochezia
PR bleeding
81
what can causes of PR bleeding be broadly grouped into
local infections colitis pathologies of GI tract
82
what are local causes of PR bleeding
``` haemorrhoids fissures fistulas (aorto-enteric) ulcers peri-anal disease ```
83
what are haemorrhoids
engorged vascular cushions
84
what are infectious causes of PR bleeding
``` campylobacter shigella salmonella E.coli amoebiasis C.diff ```
85
what types of colitis cause PR bleeding
IBD - crohns and UC ischaemic radiation pseudomembranous
86
PR bleeding with gastroenteritis has symptoms for more than 4 weeks, true or false
false gastroenteritis <4 weeks IBD >4 weeks
87
what are pathological causes of PR bleeding
colorectal cancer diverticular disease/diverticulitis polyps angiodysplasia
88
list causes of diarrhoea
``` gastroenteritis IBS IBD CRC chronic pancreatitis laxative abuse lactose intolerance diverticular disease overflow diarrhoea bacterial overgrowth C.diff thyrotoxicosis carcinoid Pellagra amyloid drugs: antibiotics, PPI, cytotoxics, digoxin, alcohol ```
89
RF for C.diff infection
``` 4 C antibiotics: - cephalosporins - ciprofloxacin (quinolones) - clindamycin - co-amoxiclav PPIs increased age ```
90
what GI pathology should you rule out in someone with iron deficiency anaemia
PUD - bleeding CRC IBD malabsorption - Coeliac disease
91
what is IBS
irritable bowel syndrome is a functional disorder where the patient experiences symptoms but there is no underlying organic pathology
92
symptoms of IBS
``` abdominal pain constipation diarrhoea bloating PR mucous nausea bladder symptoms backache ```
93
management of IBS
``` education and explanation healthy diet constipation - biscodyl diarrhoea - bulking agent, loperamide bloating/colic - antispasmodic ```
94
what is the recommended alcohol limit for men and women
14 units per week | ideally spread over 3 days
95
what are the CAGE questions in relation to alcohol
ever felt the need to Cut down? have people Annoyed you by criticising your drinking? ever felt Guilty about your drinking? ever had an Eye opener to steady nerves in the morning?
96
what organs in the body can alcohol affect
``` trauma from intoxication liver CNS GI blood heart bone - osteoporosis, myopathy pregnancy - FAS ```
97
how does alcohol affect the liver
fatty liver alcoholic hepatitis cirrhosis --> portal HTN, varices, ascites, poor nutrition
98
how does alcohol affect the CNS
``` atrophy poor memory neuropathy fits falls Korsakoff's Wernickes encephalopathy confabulation delirium tremens dementia cerebellar degeneration ```
99
how does alcohol affect the gut
``` obesity D+V oesophagitis aspiration acute pancreatitis peptic ulceration varices - oesophageal, umbilical, rectal cancer - liver, CRC, pancreas, gastric oesophageal rupture ```
100
how does alcohol affect the blood
``` macrocytosis (^MCV) anaemia bone marrow suppression folate deficiency haemolysis ```
101
how does alcohol affect the heart
``` arrhythmias HTN dilated cardiomyopathy sudden death MI stroke ```
102
signs of alcohol withdrawal
``` starts within 10-72 hr of last drink tachycardia hypotension tremor confusion fits hallucinations - visual, tactile ```
103
initial management/investigations for alcohol withdrawal
ABCDE + NEWS FBC, U+E, LFT, creatinine, electrolytes, glucose, clotting IV pabrinex
104
definitive management for alcohol withdrawal
chlordiazepoxide or diazepam
105
what is Wernicke-Korsakoff syndrome
alcohol related brain damage | thiamine (B1) deficiency
106
what is thiamine
Vit B1 - cofactor
107
what is the triad of Wernicke's encephalopathy
mental confusion ataxia ophthalmoplegia
108
what is confabulation
falsification of memory in clear consciousness
109
what is Korsakoff's encephalopathy
late manifestation of untreated Wernicke's encephalopathy
110
features of Korsakoff's
memory loss | confabulation
111
what is steatosis and is it reversible
fatty liver | yes
112
clinical features of the spectrum of alcoholic liver disease
``` malaise nausea hepatomegaly fever jaundice sepsis encephalopathy ascites renal failure death ```
113
stigmata of chronic liver disease and portal HTN
``` finger clubbing leukonychia (hypoalbuminaemia) asterixis / flap spider naevi caput medusae ascites gynaecomastia palmar erythema Dupuytrens jaundice tremor encephalopathy hepatomegaly and splenomegaly low albumin prolonged PTT thrombocytopaenia ```
114
what factors are assessed in the Child-Pugh score
``` ascites hepatic encephalopathy bilirubin albumin PTT ```
115
what does the Child-Pugh score assess
degree of compensation in CLD
116
characteristic features of alcoholic hepatitis
hepatomegaly fever leukocytosis hepatic bruit
117
what is CLD
chronic liver disease has a duration of >6 months essentially progresses to cirrhosis recurrent inflammation and repair with fibrosis
118
causes of CLD/cirrhosis from most to least common
``` alcohol NAFLD ie bad diet hepatitis C PBC autoimmune hepatitis hepatitis B haemochromatosis PSC Wilsons disease alpha1 antitrypsin Budd chiari methotrexate ```
119
what is budd chiari syndrome
rare disease of hepatic venous outflow obstruction | thrombosis of hepatic veins
120
what is NAFLD
non-alcohol related fatty liver disease associated with metabolic syndrome fatty liver / steatohepatitis in absence of other cause
121
what is NASH
non-alcoholic steatoheaptitis
122
what are examples of autoimmune liver disease
primary biliary cirrhosis autoimmune hepatitis primary sclerosing cholangitis drug reactions
123
features of PBC
``` autoimmune destruction of small sized bile ducts middle aged women fatigue itch xanthelasma ```
124
investigations for PBC
AMA + cholestatic LFTs liver biopsy
125
treatment of PBC
urseo deoxycholic acid
126
features of autoimmune hepatitis
``` F>M associated with other autoimmune conditions may present acutely hepatomegaly, splenomegaly jaundice stigmata of CLD deranged LFTs malaise, fatigue, nausea, abdominal pain, anorexia ```
127
investigations for autoimmune hepatitis
``` ^ AST + ALT ^ IgG rule out other causes autoimmune antibodies biopsy showing interface hepatitis ```
128
management of autoimmune hepatitis
corticosteroids | azathioprine
129
what is PSC
autoimmune destruction of large and medium sized bile ducts
130
PSC is more associated with crohns/UC
UC
131
what can PSC progress to
cholangiocarcinoma | CRC
132
what is haemochromatosis
AR condition of iron overload | increased iron absorption in the gut results in iron deposition in the body
133
what organs can haemochromatosis affect
``` liver cirrhosis cardiomyopathy pancreas bronzed diabetic hypogonadism ```
134
management of haemochromatosis
venesection
135
what is Wilsons disease
AR condition with caeruloplasmin mutation | resulting in massive copper deposition especially in liver and basal ganglia
136
features of Wilsons disease
liver disease altered personality choreaform Kaiser Fleisher rings - eyes
137
management of Wilsons disease
copper chelation - penicillamine
138
what is alpha1 antitrypsin disease
mutation in A1AT gene
139
features of alpha1 antitrypsin disease
``` lung emphysema (COPD like image) liver disease ```
140
management of alpha1 antitrypsin disease
supportive
141
what is cardiac cirrhosis
secondary to right heart failure/HTN - congenital - rheumatic fever - constrictive pericarditis
142
what are the components that make up the portal vein
SMV splenic vein + gastric vein IMV
143
what is the main blood supply to the liver
hepatic portal vein
144
describe blood flow to and from the liver
O2 from hepatic artery + nutrients from HPV enter liver | central vein --> hepatic vein --> IVC --> RA of heart
145
sites of portocaval anastamosis
oesophageal and gastric umbilical retroperitoneal haemorrhoidal
146
what are clinical signs of portal HTN in terms of portocaval anastamosis
oesophageal and gastric varices caput medusae - umbilical rectal varices
147
what is the normal portal venous pressure
5-8mmHg
148
causes of portal HTN
prehepatic - portal vein thrombosis | intrahepatic - cirrhosis, schistosomiasis, ALD, budd chiari
149
signs of decompensated cirrhosis
``` jaundice ascites encephalopathy easy bruising variceal bleeding liver failure ```
150
should you avoid NSAIDs in the case of ascites
yes - causes Na and fluid retention
151
management of ascites
``` reduce salt diuretics - spironolactone paracentesis TIPS transplant ```
152
what is spontaneous bacterial peritonitis
translocated bacterial infection of ascites | E.coli, klebsiella
153
treatment of hepatic encepahlopathy
look for cause and reverse lactulose to clear gut and reduce absorption of ammonia rifaximin - antbx which reduces ammonia absorption also
154
what is fulminant hepatic failure
clinical syndrome resulting from massive necrosis of liver cells leading to severe impairment of liver function
155
causes of liver failure
infection - viral hepatitis drugs - paracetamol vascular - budd chiari others - alcohol, autoimmune, genetic conditions, malignancy, HELLP syndrome
156
signs of liver failure
``` jaundice hepatic encephalopathy fetor hepaticus - pear drops breath asterixis / flap apraxia signs of CLD ```
157
what is the cause of hepatic encephalopathy
liver failure results in a build up of ammonia which is carried to the brain and glutamine is produced, excess glutamine results in cerebral oedema
158
what does the following mean in ascitic fluid cytology: neutrophils >250 protein >25g/l protein <25g/l
neutrophils >250 - SBP protein >25g/l - exudate protein <25g/l - transudate
159
what is spironolactone
aldosterone antagonist diuretic promotes excretion of Na and retention of K
160
what are furosemide and bumetanide
loop diuretics
161
what is the commonest liver tumour
metastases | breast, bronchus, GI tract
162
what is the commonest primary liver tumour
HCC
163
blood tests for liver cancer
FBC U+E LFT aFP
164
RF for HCC
viral hep B+C cirrhosis (and all its causes) aflatoxin FH
165
what is cholangiocarcinoma
biliary tree cancer
166
what is the commonset benign liver tumour
haemangioma
167
list benign liver lesions
``` haemangioma adenoma cysts focal nodular hyperplasia fibroma ```
168
RF for pancreatic carcinoma
``` male age smoking alcohol carcinogens DM chronic pancreatitis central obesity ^ red meat ```
169
presenting features of pancreatic carcinoma
``` painless jaundice weight loss diabetes acute pancreatitis hypercalcaemia Courvoisier's sign organomegaly ```
170
prognosis for pancreatic cancer?
poor
171
what are carcinoid tumours
tumours of enterochromaffin cell origin (neuroendocrine) capable of producing 5HT site: appendix, ileum, rectum
172
features of carcinoid tumours
``` bronchoconstriction flushing diarrhoea CCF ^5HIAA levels ```
173
what surgical procedure may be done for pancreatic cancer
Whipple's procedure
174
clinical features of UC
``` bloody diarrhoea >4weeks abdominal pain tenesmus night rising urgency weight loss finger clubbing ```
175
extra GI features of UC
eyes - iritis, episcleritis, uveitis, conjunctivitis liver - PSC, fatty liver MSK - arthritis, AS nutritional deficits
176
IBD investigations
``` FBC U+E LFT CRP stool culture - rule out infection colonoscopy ```
177
complications of UC
``` toxic megacolon perforation bleeding CRC PSC cholangiocarcinoma ```
178
pathophysiology of UC
``` surface inflammation (ucosa and submucosa) continuous pattern pseudopolyps crypt abscesses depletion of goblet cells mucosal ulcers Th2 disease ```
179
site of UC
starts at rectum and moves proximally along large bowel | never goes beyond ileocaecal valve
180
classification of UC
mild <4 motions moderate 4-6 severe >6
181
management of mild -moderate UC (induction of remission)
topical / oral 5ASA e.g. sulfasalazine or mesalazine | steroids, but wean these down
182
management of severe UC (induction of remission)
``` admission IV fluids IV hydrocortisone prophylactic LMWH for VTE assess need for surgery ```
183
clinical features of crohns disease
``` diarrhoea >4weeks urgency abdominal pain weight loss failure to thrive malaise peri-anal disease: skin tags, fistulae, abscess, strictures ```
184
extra GI features of crohns
``` aphthous ulcers finger clubbing eyes - episcleritis, uveitis, conjunctivitis arthritis erythema nodosum gallstones ```
185
complications of crohns
``` toxic megacolon SBO fistulae abscesses strictures perforation bleeding ```
186
site of crohns
whole GI tract can be affected | mouth to anus
187
pathophysiology of crohns
``` transmural inflammation --> fistulae skip lesions, patchy increased goblet cells granulomatous cobblestone appearance ```
188
management of crohns
steroids immunosuppressants - azathioprine biologics - anti-TNF infliximab
189
what is scurvy
``` vit C deficiency gingivitis halitosis anorexia muscle pain oedema ```
190
what is beriberi
vit B1 deficiency (thiamine)
191
what is dry beriberi
neuropathy
192
what is wet beriberi
heart failure with oedema
193
what is pellagra
niacin deficiency (B3)
194
what are the 4Ds of pellagra
dermatitis diarrhoea dementia death
195
what is refeeding syndrome
clinical findings in those that are severely malnourished and are receiving nutritional support
196
RF for refeeding syndrome
``` eating disorders alcoholism depression fasting vomiting prolonged NBM ```
197
clinical features of refeeding syndrome
arrhythmias abdo pain, vomiting weakness SOB
198
there is hypo/hyperphosphataemia in refeeding syndrome
HYPO phosphataemia kalaemia magnesaemia
199
what is parenteral feeding
feeding through IV | ie not through the GI tract
200
indications for OGD
``` dysphagia dyspepsia GORD weight loss haematemesis/malaena vomiting upper abdo mass coeliac oesophageal varices upper GI bleed - therapeutic management ```
201
indications for sigmoidoscopy
PR bleeding CIBH IBD
202
indications for colonoscopy
``` CIBH polyp surveillance IBD cancer surveillance genetics eg FAP ```
203
indications for ERCP
obstructive jaundice CBD stones gallstone pancreatitis
204
steroids can mask a silent GI perforation, true or false
true
205
for severe colitis, by which day would you expect response to treatment
by day 3 there should be some response but if not you can wait till day 5 If by day 5 there is no response, call the surgeons
206
what criteria do you use for patients with eating disorders
MARSIPAN
207
risks of refeeding syndrome
``` rapid drop in phosphate, magnesium or potassium arrhythmias death constipation increased adverse effects of drugs distress self harm ```