Gastrointestinal and Nutritional Flashcards
What are the causes of epigastric pain?
PUD, gastritis, MI, pancreatitis, biliary colic, gastric volvulus, Mallory-Weiss
What are the causes of RUQ pain?
cholecystitis, hepatitis, PUD, perforated ulcer, pancreatitis, liver tumors, gastritis, hepatic abscess, choledocholithiasis, cholangitis, pyelonephritis, nephrolithiasis, appendicitis (especially during pregnancy), thoracic causes (e.g, pleurisy/pneumonia), PE, pericarditis, MI (especially inferior MI)
What are the causes of LUQ pain?
PUD, perforated ulcer, gastritis, splenic injury, abscess, reflux, dissecting aortic aneurysm, thoracic causes, pyelonephritis, nephrolithiasis, hiatal hernia (strangulated paraesophageal hernia), Boerhaave’s syndrome, Mallory-Weiss tear, splenic artery aneurysm, colon disease
What are the causes of LLQ pain?
diverticulitis, sigmoid volvulus, perforated colon, colon cancer, urinary tract infection, small bowel obstruction, inflammatory bowel disease, nephrolithiasis, pyelonephritis, fluid accumulation from aneurysm or perforation, referred hip pain, gynecologic causes, appendicitis (rare)
What are the causes of RLQ pain?
appendicitis! and same as LLQ; also mesenteric lymphadenitis, cecal diverticulitis, Meckel’s diverticulum, intussusception
What is the presentation of acute/chronic cholecystitis?
45-year old woman with RUQ pain for 12 hours, fever, and leukocytosis
- 5 Fs: female, fat, forty, fertile, fair
- (+) Murphy’s sign (RUQ pain with GB palpation on inspiration)
- RUQ pain after a high-fat meal
How is acute/chronic cholecystitis dx?
- ultrasound if the preferred initial imaging
- gallbladder wall > 3 mm, pericholecystic fluid, gallstone
- HIDA is the best test (gold standard)
- porcelain gallbladder = chronic cholecystitis
What is the tx for acute/chronic cholecystitis?
cholecystectomy
What is acute pancreatitis?
epigastric abdominal pain with radiation to the back and elevated lipase
What is the etiology of acute pancreatitis?
cholelithiasis or alcohol abuse
How is acute pancreatitis dx?
- clinical + elevated lipase and amylase
- CT required to differentiate from necrotic pancreatitis
What are the signs of acute pancreatitis?
grey turner’s sign (flank bruising) and Cullen’s sign (bruising near umbilicus)
What is ransoms criteria for poor prognosis of acute pancreatitis?
at admit: -age > 55 -leukocyte >16,000 -glucose >200 -LDH >350 -AST >250 at 48 hours: -arterial PO2 <60 -HCO3 <20 -calcium < 8.0 -BUN increased by 1.8+ -hematocrit decrease by 10% -fluid sequestration > 6 L
What is the tx for acute pancreatitis?
IV fluids (best), analgesics, bowel rest
What are the complications of acute pancreatitis?
pancreatic pseudocyst (a circumscribed collection of fluid rich in pancreatic enzymes, blood, and necrotic tissue)
What is chronic pancreatitis?
the classic triad of pancreatic calcification (plain abdominal x-ray), steatorrhea (high fecal fat), and diabetes mellitus
-alcohol abuse
What is the tx of chronic pancreatitis?
no alcohol, low-fat diet
What are the characteristics of anal fissure?
- small split or tear in the anal mucosa
- there may be blood on the outside of the stool or on the toilet tissue following a bowel movement
- anal fissures are extremely common in your infants but may occur at age
- studies suggest 80% of infants will have had an anal fissure by age one
- most fissures heal on their own
- vertical fissures = most common
- horizontal fissures = Crohn’s dz, HIV
What is the tx of anal fissures?
stool softeners, bulk, petroleum jelly
-these measures generally heal more than 90% of anal fissures
What is anorectal abscess?
- infection of an anal fissure, STDs, and blocked anal glands are common causes of anorectal abscesses
- deep rectal abscesses may be caused by intestinal disorders such as Crohn’s disease or diverticulitis
What is the tx for anorectal abscess?
I&D, warm sitz baths, pain medication and antibiotics
What is an anorectal fistula?
open tract between two epithelium-lined areas and is associated with deeper anorectal abscesses
-fistulae will produce anal discharge and pain when the tract becomes occluded
What are the characteristics of appendicitis?
the first symptom is crampy or “colicky” pain around the navel (periumbilical)
- there is usually a marked reduction in or total absence of appetite, often associated with nausea, and occasionally, vomiting and low-grade fever
- as the inflammation increases, the abdominal pain tends to move downward - begins in epigastrium - umbilicus - RLQ
- right lower quadrant = “McBurney’s point”
- this “rebound tenderness” suggests inflammation has spread to the peritoneum
What are the signs of appendicitis?
- Rovsing - RLQ pain with palpation of LLQ
- Obturator sign - RLQ pain with internal rotation of the hip
- Psoas sign - RLQ pain with hip extension
How is an appendicitis dx?
- imaging if atypical presentation - apply ultrasound or abdominal CT scan
- CBC - neutrophilic supports the diagnosis
What is the tx for appendicitis?
surgical appendectomy
What are the guidelines for bariatric surgery?
- BMI > 40 (basically 100 pounds above ideal body weight) or
- BMI > 35 with a medical problem related to morbid obesity
- individuals must have failed other non-surgical weight loss programs
- they must be psychologically stable and able to follow post-op instructions
- obesity is not caused by a medical disease such as endocrine disorders
How is BMI measured?
body weight in kg divided by height in meters squared
What are the characteristics of bowel obstruction?
colicky abdominal pain, nausea, bilious vomiting, obstipation, abdominal distention, hyperactive bowel sounds (early) or hypoactive bowel sounds (late), prior abdominal surgery
What are the characteristics of large bowel obstruction?
gradually increasing abdominal pain with longer intervals between episodes of pain, abdominal distention, obstipation, less vomiting (feculent), more common in the elderly
What should you look for in bowel obstruction?
- look for vomiting of partially digested food, severe abdominal dissensions and high pitch hyperactive bowel sounds progressing to silent bowel sounds
- KUB shows dilated loops of bowel with air-fiuid levels with little or no gas in the colon
What is the treatment of bowel obstruction?
bowel rest, NG tube placement, surgery as directed by underlying cause
What is cholangitis?
RUQ pain, jaundice, and fever
-a complications of gallstones with symptoms secondary to an infected obstruction of the common bile duct (E.coli is the #1 cause)
What is Charcot’s triad?
RUQ tenderness, jaundice, fever
What is Reynold’s pentad?
Charcot’s triad + altered mental status and hypotension
What is the dx and tx for cholangitis?
ERCP is the optimal procedure both for diagnosis and for treatment
What is cholelithiasis and choledocholithiasis?
a precursor to cholecystitis, cholesterol stones account for >85% of gallstones in the Western world
What is colorectal carcinoma?
painless rectal bleeding and a change in bowel habits in patients 50-80 years of age
What are the characteristics of colorectal carcinoma?
- apple core lesion on barium enema, adenoma most common type
- Tumor Marker: CEA
- more likely to be malignant: sessile, >1 cm, villous
- less likely to be malignant: pedunuclated, < 1 cm, tubular
What is the tx of colorectal carcinoma?
resection and adjuvant chemotherapy
How is constipation defined?
as less than 2 bowel movements per week
What is obstipation?
a severe form of constipation, where a person cannot pass stool or gas
What are the signs and symptoms of a small bowel obstruction?
colicky abdominal pain, nausea, bilious vomiting, obstipation, abdominal distention, hyperactive bowel sounds (early) or hypoactive bowel sounds (late), prior abdominal surgery
What are the signs and symptoms of a large bowel obstruction?
gradually increasing abdominal pain with longer intervals between episodes of pain, abdominal distention, obstipation, less vomiting (feculent), more common in the elderly
What is an illeus?
- hypomotility of the gastrointestinal tract in the absence of mechanical bowel obstruction
- illeus that persists for more than 3 d following surgery is termed postoperative dynamic ileum or paralytic ileus
- signs: absent bowel sounds
- CT scan with gastrografin - must exclude mechanical obstruction
What is gastroparesis?
- a condition that affects the stomach muscles and prevents proper stomach emptying
- MCC: diabetes
What is pseudomembranous colitis?
- inflammation of the colon caused by the bacteria clostridium difficile
- occurs secondary to treatment with antibiotics with broad-spectrum antibiotics - pencilling, cephalosporins, and FQ
- mild watery foul-smelling diarrhea (>3 but < 20 stools/day)
- IV metronidazole OR PO vancomycin (this is the only use for oral vancomycin)
What is diverticular disease?
LLQ pain, tenderness, abdominal distention, fever, and leukocytosis in older patients
- inflammation of an abnormal pouch (diverticulum) in the intestinal wall, usually found in the large intestine
- the presence of the pouches themselves is called diverticulosis
- when they become inflamed, the condition is known as diverticulitis
What are the characteristics of diverticular disease?
- left-sided Appy
- most common location: sigmoid colon
- fevers/chills/nausea/vomiting/left-sided abdominal pain
How is diverticular disease dx?
abdominal/pelvic CT scan revealing fat stranding and bowel wall thickening
-the most common cause of massive lower gastrointestinal bleedings
What is the tx of diverticular disease?
ciprofloxacin or augmentin/+ metronidazole (flagyl)
- recurrent attacks or presence of perforation, fistula, or abscess requires surgical removal of the involved portion of the colon
- treat by increasing the bulk in the diet with high-fiber foods and bulk additives such as Metamucil
What is esophageal cancer?
progressive dysphagia to solid foods along with weight loss, reflux, and hematemesis
-squamous cell m/c worldwide and adenocarcinoma common in the US