GI and Nutritional Flashcards
Describe the most common clinical presentation of appendicitis.
Umbilical pain migrating to the RLQ. Fever, nausea, vomiting, anorexia.
Describe three PE tests used to evaluate for appendicitis.
Rovsing’s: RLQ pain elicited by palp of LLQ
Obturator: hip internally rotated with knee and hip in flexion
Psoas: Pt supine –> flex right hip with leg straight. Pt on left side –> extend right hip with leg straight
What imaging is most useful in the diagnosis of appendicitis?
US initial, CT with contrast more sensitive.
What antibiotic is best in the management of appendicitis?
3rd generation cephalosporin
Define cholecystitis.
Inflammation and/or infection of gallbladder s/p cystic duct obstruction.
What is the most common causative agent in infective cholecystitis?
E. Coli
What clinical findings are most associated with cholecystitis?
Colicky RUQ pain worse after fatty meal, fever, nausea, vomiting, hypoactive bowel sounds (indicates perforation).
What imaging tests are used in the diagnosis of cholecystitis?
US initial
HIDA scan gold standard
ERCP diagnostic and therapeutic
What pharmacologic agent is most commonly used to manage pain in cholecystitis?
Meperidine (Demerol)
Differentiate cholelithiasis from choledocholithiasis.
Cholelithiasis: gallstones
Choledocholithiasis: obstruction of biliary tree s/p stone
What is the treatment of choledocholithiasis?
Stone removal via ERCP
Define primary sclerosing cholangitis.
Autoimmune, progressive cholestasis with diffuse fibrosis of intrahepatic and extrahepatic ducts. Usually associated with inflammatory bowel disease.
What clinical findings are associated with primary sclerosing cholangitis?
progressive jaundice, pruritus, RUQ pain, hepatosplenomegaly, inc ALP (very high), GGT, ALT, AST, and total bilirubin.
Define ascending cholangitis.
Biliary tract infection s/p obstruction by gallstone
Describe Charcot’s triad.
Fever, RUQ pain, jaundice - indicate ascending cholangitis. Add shock and AMS for Reynold’s pentad.
What is the treatment of ascending cholangitis?
Abx: PCN (Zosyn) and aminoglycoside (gentamicin)
ERCP for stone removal
Differentiate between the types of hepatitis.
A: fecal-oral transmission B: IVDU, STI (most common) C: STI, IVDU (most common) D: Requires co-infection with HBV E: fecal-oral transmission, waterborne outbreaks --> high infant mortality if mom has HEV
Describe the findings of antigen and antibody testing for HBV.
A
What are the most common causes of acute and chronic pancreatitis?
Acute: cholelithiasis –> hypertriglyceridemia
Chronic: alcohol use disorder
Describe the clinical findings most commonly associated with pancreatitis.
Epigastric pain radiating to back - improves when patient leans forward, N/V, fever, leukocytosis
Describe the triad of chronic pancreatitis.
Calcifications, steatorrhea, diabetes mellitus
Which lab finding is most sensitive in diagnosis of pancreatitis?
lipase
What is the treatment of pancreatitis?
- Fluid resus and stop PO intake –> 90% resolve
- ERCP if biliary sepsis/obstruction suspected
- Alcohol use cessation
What is the most common location of an anal fissure.
Posterior midline
What clinical S/S are most commonly associated with anal fissure?
Hematochezia, tearing pain on defecation, constipation s/p BM being too painful, skin tags in chronic
What is the treatment of anal fissure?
80% resolve spontaneously,
1st line: Sitz bath, increased fluid and bulking agents to reduce straining
2nd line: topical NTG, topical nifedipine, topical silver nitrate
Maintenance/Prevention: high fiber diet
What are the most common causative agents of anorectal abscess and what is the treatment?
Cause: Staph aureus or E. Coli
Tx: I&D –> no antibiotics
Define obstipation.
Severe or complete constipation
What are the most common causes of bowel obstruction?
Post-op adhesions or ischemia