Mixed Flashcards
Normal stool fat content
< 14 g/day
14-20: investigate small bowel causes
>20: investigate pancreatic causes
Indications to pursue stool micro studies
Fever >38.5
bloody stools
high stool WBC
elderly aged 70 and above
ICC state
Duration >48 hours without improvement
Recent antibiotic use
New community outbreak
Associated severe abdominal pain in patients >50 years
INDICATED TO GIVE ANTIBIOTIC TREATMENT FOR ACUTE DIARRHEA
- Immunocompromised
- (+) mechanical heart valves or recent vascular grafts
- Elderly
INDICATION TO GIVE ANTIBIOTIC PROPHYLAXIS for Diarrhea
“GIIH”
- Immunocompromised**
- IBD**
- Hemochromatosis**
- Gastric achlorhydria**
DOC for diabetic diarrhea
Clonidine
Drug for diarrhea in IBS
5 HT3 antagonist (Ondansetron)
Treatment of diarrhea associated with IBS
5 HT3 antagonist (Ondansetron)
Rifaximin
eluxadoline (κ-OR agonist and δ-OR antagonist)
What 3 conditions would make colonoscopy among < 40 years old preferable than flexible sigmoidoscopy?
-Copious bleeding
-Family hx of colon CA
-IDA
Conditions with SAAG < 1.1
“Bili Neph Peri Tub”
Biliary Leak
Nephrotic Syndrome
Peritoneal carcinomatosis
Pancreatitis
Tuberculosis
Conditions with SAAG >= 1.1 with Ascitic protein < 2.5
“C LB M”
Cirrhosis
Late Budd Chiari
Massive liver mets
Conditions when abx prophy needed for GI procedures
ERCP
-Sterile pancreatic fluid collection*
-Bile duct obstruction ⊖ cholangitis (with expected incomplete drainage)*
EUS FNA
-Cyst along GI, pancreas, mediastinum
PEG
Cirrhosis with GI bleed
Continuous PD
Transmural drainiage
-Sterile pancreatic collection
*continue after procedure
Types of gastritis and their level of acid production
Type I - body; low
II- antrum; normal to low
III- pylorus with DU; normal to high
IV - cardia; low
Nutrition deficient with long term PPI use
Iron
Magnesium
Vit B12
Chronic gastritis types and features
Type A - Autoimmune
Type B
-antral
-assoc with adenocarcinoma
-aging
What stage of hemorrhoids are the following initially indicated?
RBL
Sclerotherapy
Sclerotherapy - II
RBL - III
GERD Warning Signs
Dysphagia/Odynophagia
Recurrent vomiting
GI bleed
Jaundice
Weight loss
Palpable adenopathy or mass
Familial hx of GI malignancy
Antibiotic coverage is required in these patients who present with acute diarrhea, whether or not a causative organism is discovered
“I love old ppl”
ICC state
Mechanical heart valves
Elderly
Most consistent clinical feature in IBS
Alteration in bowel habits
Percutaneous drainage in Hinchey II is highly recommended with what abscess size?
> 3cm
< 5cm may resolve with abx alone
What 2 conditions are contraindications to hemorrhoid procedures?
1) ICC state
2) Proctitis
Which of the following is the most common cause of functional bowel obstruction?
Intaabdominal surgery
Acetaminophen blood level correlated with severe hepatic damage?
> 300 ug/mL 4hr
< 150 ug/mL - unlikely
Risk factors for progression to advanced liver fibrosis to those with NASH
Age > 45-50
Overweight/obese
T2DM
3 recommendations for cholecystectomy
1) symptomatic
2) prior history of gallstone disease
3) calcified GB/porcelain gallbladder
Diagnostic algorithm for chronic pancreatitis
CT
MRI
EUTZ
Pancreas function test
ERCP
Most prevalent cause of drug induced acute liver failure?
Acetaminophen
The most common agent implicated as causing drug-induced liver injury
Co-Amoxiclav
Drugs with mild, transient, nonprogressive serum aminotransferase elevations that resolve with continued drug use
VIPS
Valproate
Isoniazid
Phenytoin
Statin
Most common pattern of liver injury
Hepatocellular injury
Pathologic findings in hepatocellular injury
Spotty necrosis in the liver lobule with a predominantly lymphocytic infiltrate resembling that observed in acute hepatitis A, B, or C
Pathophysiology of cholestasis
Binding of drugs to canalicular membrane transporters, accumulation of toxic bile acids resulting from canalicular pump failure, or genetic defects in canalicular transporter proteins
R values and corresponding type of liver pattern injury
- R value of >5 → HEPATOCELLULAR INJURY
- R value of <2 → CHOLESTATIC INJURY
- R value of 2.0 - 5.0 → MIXED HEPATOCELLULAR-CHOLESTATIC INJURY
Pathology in acetominophen liver injury
Dose related centrilobular necrosis
Laboratory findings in hyperacute acetaminophen injury
Very high ALT
Low bilirubin
Symptomatic phase –> clinical resolution –> markers deranged 3-5 days post ingestion
What acetaminophen levels will administration of N-acetylcysteine reduce the severity of hepatic necrosis?
> 200 μg/mL measured at 4 h or >100 μg/mL at 8 h after ingestion
Time frame when there is benefit of charcoal or cholysteramine in Acetaminophen induced liver injury
Within 30 mins