Gastroenterology Flashcards
Defined as >3 months of bothersome post-prandial fullness, early satiety or epigastric pain or burning with symptom onset of at least 6 months before diagnosis in the absence of organic cause
Functional dyspepsia
What are the 3 dominant mechanism of esophagogastric junction incompetence?
- Transient LES relaxation (90%)
- LES hypotension
- Anatomic distortion of the esophagogastric junction inclusive of hiatus hernia
Alarming Symptoms of GERD (7)
Odynophagia
Dysphagia
Unexplained weight loss
Jaundice
Occult or grossGIT bleeding
Recurrent vomiting
Adenopathy or palpable mass
Family history of gastroesophageal malignancy
Most severe histologic consequence of GERD
Barrett’s esophagus with associated risk of adenocarcinoma
Treatment for Chronic GERD
Nissen Fundoplication
Urgent endoscopy cut-offs (age)
Dyspepsia? PUD?
Greater than 55 years old for dyspepsia with alarm symptoms
Greater than 45 years old for PUD with alarm symptoms
Classic symptom of GERD
Water brash and substernal heartburn
Most sensitive test for GERD diagnosis
24 hour ambulatory monitoring of pH
Gold standard for confirmation of Barrett’s esophagus
Endoscopic biopsy
Most common esophageal symptom in GERD
pyrosis or heartburn
Most common cause of esophageal chest pain in GERD
Gastroesophageal reflux
Characteristic symptom of infectious esophagitis
Odynophagia
Indications for testing for H.pylori
Active PUD
History of PUD without prior treatment
MALT
Uninvestigated dyspepsia
Test of choice to document eradication of H.pylori
Urea breath test
Stool Antigen
Common first line of treatment for H.pylori: triple therapy and quadruple therapy
“OCA”
Omeprazole
Clarithromycin
Amoxicillin
“TOMB”
Tetracylcine
Omeprazole
Metronidazole
Bismuth
Duodenal cancers occur most often in
first portion of the duodenum (90%)
Benign gastric ulcers are most often found in
distal junction between the antrum and the acid secretory mucosa
Two predominant causes of PUD
NSAID ingestion and H.pylori infection
Most discriminating symptom of duodenal ulcer
pain that awakes the patient from sleep
Complication of PUD
most common: GIT bleeding
Second most common: perforation
least common: gastric outlet obstruction
most potent acid inhibitory agents available
PPIs
most leading cause of acute pancreatitis
gallstone followed by alcohol
cardinal symptom of acute pancreatitis
abdominal pain radiating to the back
Indicate which part can you find the ecchymosis for pancreatitis:
1. Cullen’s sign
2. Turner’s sign
- periumbilical area
- flank area
Charcot’s Triad
Abdominal Pain
Fever
Jaundice
SIRS Criteria
- Temp >38 or <36
- Leukocytosis >12,000 or Leukopenia <4000 or 10% bands seen in PBS
- Tachycardia (>100)
- Tachypnea >20 cpm
SOFA scoring
SBP >90 mmHg
RR >22cpm
altered mentation
most common cause of death for pancreatitis
hypovolemic shock
BISAP Score
B: BUN > 25mg/dL
I: Impaired mental status
S: SIRS : >2 of 4 present
A: >60 years old
P: pleural effusion
Modified Marshall Score
CVS:
SBP >90
HR >130 bpm
Pulmonary:
PaO2 < 60mmHg
Renal: serum creatinine > 2.0
Pharmacologic intervention for cholelithiasis. How long do they need to take it?
UDCA 10-15mg/kg/day for 2 years
Triad for cholecystitis
RUQ tenderness
fever
leukocytosis
Two types of gallstones:
- cholesterol (90%)
- pigment stones (black or brown)
Black: chronic hemolytic states
Brown: chronic biliary infection
Most common cause of:
1. LGIT bleeding?
2. UGIT bleeding?
- hemorrhoids ; diverticula
- peptic ulcer
In ICU setting, an earliest sign of occult GIT bleeding would be ___?
rising levels of BUN
Type of diagnostic test to perform when there is active GIT bleeding
endoscopy
Identify the condition: classic history of vomiting, retching or coughing preceding hematemesis especially in alcoholic patient
Mallory Weiss Tear
Signs for cirrhosis
(not sure if chak2 ni)
spider angiomata
gynecomastia
splenomegaly
ascites
Depth of break in the mucosa before you can consider it an ulcer?
> 5mm depth
Enumerate the Forrest Classification for GIT ulcers
Ia: active pulsatile bleeding
Ib: active nonpulsatile bleeding
IIa: nonbleeding visible vessel
IIb: adherent clot
IIc: black clot
III: no signs of recent bleeding
high risk of bleeding: I-IIa
What is your next step when a patient comes in with hematochezia and unstable vital signs?
upper endoscopy to rule out UGIB before evaluating lower GIT
what anatomic structure separate upper and lower GI bleeding?
suspensory ligament of Treitz
endoscopic therapy of choice for esophageal varices
ligation
responsible for majority of cases of obscure GIB
small intestinal bleeding sources
most common causes of obscure GIB adults
vascular ectasia, tumors, NSAID induced
for <40-50 years old: small bowel tumors
for >50-60 year old: vascular ectasia, NSAID induced
most common cause of significant lower GIB in children
meckel’s diverticulum
in children and adolescents, most common colonic cause of significant GIB i
IBD and juvenile polyps
Test of choice for the following conditions:
- UGIB
- LGIB:
- massive obscure bleed:
- endoscopy
- colonoscopy unless massive bleeding -> endoscopy
- angiography
backbone of treatment for colon cancer
5 FU (5 flourouracil?)
most frequent visceral site of metastasis for colon cancer
liver
4 entities that increases AST/ALT to up to thousands
- viral hepatitis
- drug induced
- ischemic hepatitis
- transient blocking of the CBD by a choledocholith
What is the first test to become abnormal in acute hepatitis B?
surface antigen
markers for chronic hepatitis
Persistence of HBsAg or HBeAg
Signs of Portal Hypertension (4)
ascites
peripheral edema
GI bleeding
splenomegaly
Stigmata of Cirrhosis (6)
palmar erythema
spider angiomata
gynemocastia
Dupuytren’s contracture
Caput medusae
Testicular atrophy
Presence of scleral icterus indicates total bilirubin level of at least
2.5-3mg/dL
another sensitive indicator of increased
serum bilirubin
tea colored urine
Phase of Hepatitis:
precede onset of jaundice by 1-2 weeks
Prodromal phase
Risk factors for severe pancreatitis
more than 60 years old
obesity BMI > 30
comorbid disease
marker for chronic hepatitis
persistence of HBsAg or HBeAg
- Interval between the disappearance of HBsAg and the appearance of anti-HBsAb
- What is the only detectable serology during this interval?
- Window Period
- anti-HBc
How are the following vaccines given for prevention of Hepatitis infection?
1. Hepatitis A? Recommended for who?
2. Hepatitis B vaccine. Recommended for who?
3. For needle stick injury?
- 2 doses 6 months apart ; planning to travel to endemic places
- given in 3 doses 6 months apart ; health care workers and universal vaccination to infants
- Hepa B immunoglobulin
Mainstay treatment for liver encephalopathy
lactulose
significant alcohol intake
Alcohol intake of 30g or more (3 pilsens cans) everyday
Syndrome due to mainly nitric oxide in the splanchnic circulation causing peripheral vascular resistance
Hepatorenal Syndrome
Pulmonary vasodilation or direct portopulmonary capillary connection creating a vascular shunt resulting to hypoxemia, V/Q mismatch
Hepatopulmonary syndrome
Complications/signs of decompensation
GI bleeding
ascites/edema
Jaundice
Encephalopathy
True or False:
Enlarged caudate lobe can be found in Budd Chiari Syndrome
True
Normal Liver Span
21-23 cm
Three primary complications of portal HPN
varices
ascites
hypersplenism
Treatment for Cirrhosis (VIBES)
V - volume
I - infection
B - bleeding
E - encephalopathy
S - Screening for hepa and HCCa
Management for the following:
1. portal hypertension
2. ascites
3. encephalopathy
- nonselective beta blocker with goal of HR 50-60bpm or SBP >90mmHh, splanchnic vasoconstrictors
- sodium restriction, diuretics, paracentesis, for SBP, give cefotaxime or fluoroquinolones
- lactulose, transplant
When do you give TIPS (transjugular intrahepatic portosystemic shunt)?
individuals who fail endoscopic and medical management
Preferred site for paracentesis
LLQ
Most common cause of ascites
Liver cirrhosis
Initial treatment of cirrhotic ascites
restriction of NA intake (spironolactone + furosemide)
- Test that distinguish portal HPN from non-portal HPN
- Interpretation
- SAAG (serum ascites albumin gradient)
- SAAG > 1.1g/dL: presence of portal HPN
SAAN < 1.1g/dL: not related to portal HPN
Indicate whether Crohn’s disease or UC have the following features or which features is more common:
1. Gross blood in stool
2. mucus
3. systemic symptoms
4. pain
5. abdominal mass
6. significant perineal disease
7. fistulas
8. small intestinal bowel obstruction
9. colonic obstruction
10. response to antiobiotic
11. recurrence after surgery
12. rectal sparing
13. continuous disease
14. cobblestone appearance
15. granuloma
- UC
- UC
- CD
- CD
- CD
- CD
- CD
- CD
- CD
- CD
- CD
- CD
- UC
- CD
- CD
T/F Smoking is protective in ulcerative colitis while it increases the risk of Crohn’s disease
True