GI Disorders Flashcards
hormone that is produced in adipose cells
leptin
the most common site affected by UC
rectum and sigmoid colon
client with 5Fs risk factors most likely has…
cholelithiasis
Mother-infant transmission of Hepatitis B Virus (HBV) will have a high vertical transmission rate when the woman is seropositive for both hepatitis B surface antigen (HBsAg) and _______
HBeAg ( Hep B viral protein)
Gastric ulcers are more likely to be seen in patients aged ______
55-65
A colon lesion that may result in obstruction is most likely to be found in the ______
descending colon
The primary diagnostic marker for acute pancreatitis is…
serum lipase
Blockage of the bile duct by gallstones or tumor will result in…
obstructive jaundice
Epigastric pain that is relieved by food is suggestive of…
duodenal ulcer
hereditary nonpolyposis colorectal cancer is an example of a _________ risk factor
non-modifiable
condition caused by reflux of acid and pepsin into the esophagus through the lower esophageal sphincter (LES) that causes erosion of esophageal lining (mucosal injury)
GERD
condition of precancerous lesions in the esophogas which can lead to adenocarcinoma
Barrett’s esophogas
Risk Factors for ______:
Obesity
Hiatal hernia
Drugs that relax the LES (Ca+ channel blockers, nitrates, nicotine)
GERD
Causes of ______:
abnormalities in LES
anything that alters closing strength of LES
increased abdominal pressure
GERD
foods/drink that relax the LES
caffeine
alcohol
fatty foods
chocolate
severity of esophagitis depends on…
composition of gastric contents
exposure time
Heartburn (wet burp/regurgitation) is worse with…
within 1 hour of eating
lying down
increased abdominal pressure
Clinical Manisfestations of \_\_\_\_\_\_: heartburn asthma chronic cough dysphagia w/ weight loss sinusitus laryngitis chest pain
GERD
How GERD is diagnosed?
patient history
clinical manifestations
endoscopy
Findings in endoscopy that confirm \_\_\_\_\_\_: hyperemia edema erosion strictures inflammation poor closure of LES Barrett's (biopsy)
GERD
injury to protective mucosal layer of the stomach resulting in inflammation of the lining (deep or superficial) that occurs with or w/o hemorrhage
gastritis
acute causes of \_\_\_\_\_\_\_: chemicals NSAIDS alcohol histamine metabolic disorders (uremia) h.pylori shock/hypotension
gastritis
NSAIDS cause gastritis by…
being COX1 inhibitors- inhibits mucoasal prostaglandins
prostaglandin action in the stomach
stimulate mucous production
suppress inflammation
h.pylori action in the stomach
inflammation
increased gastric secretions
symptoms of h.pylori in the stomach
pain
n/v
chronic causes of ______:
chronic inflammation
mucosal atrophy
epithelial metaplasia
gastritis
h.pylori results in _____ gastritis
antral
most rare and most severe type of chronic gastritis that affects the fundus and leads to gastric atrophy
Type A: Fundal/Immune
more common type of chronic gastritis that affects the antral
Type B: Antral/Non-Immune
Type B chronic gastritis causes
chronic alcohol use
NSAIDS
tobacco use
Type B chronic gastritis can result in high levels of…
hydrochloric acid
increased secretion of hydrochloric acid leads increases risk of _______
duodenal ulcers
condition when Type B gastritis progresses to include Type A and antrum is more severely involved
Type AB: Pan Gastritis
type of gastritis associated with secretion of bile and pancreatic secretions into the stomach causing chemical injury
Type C Gastritis
break or ulcer of the mucosal lining of the lower esophagus, stomach or duodenum
Peptic Ulcer Disease
Risk Factors for \_\_\_\_\_\_: Genetics H. Pylori ASA & NSAIDS ETOH smoking COPD obesity Stress (unknown why) Age < 65 y.o
Peptic Ulcer Disease (PUD)
most common form of ulcer
duodenal
duodenal ulcers are most commonly caused by…
h.pylori and NSAIDS
duodenal ulcers are negatively associated with…
gastric cancer
symptoms of \_\_\_\_\_\_\_: chronic/intermittent abdominal pain pain occuring 30 min-2 hrs after eating pain relieved by ingestion of food weight gain
duodenal ulcers
PUD is diagnosed with…
UGI, endoscopy, and h.pylori tests
______ testing is recommended for any peptic ulcer
h.pylori
90% of DU and 80% of GU are caused by…
h.pylori
bacteria that releases toxins and enzymes that promote inflammation and ulcers
h.pylori
h.pylori infections cause increase of…
acid
pepsin
gastrin
pepsinogen
ulcers in the antral portion of the stomach that are more prevalent in adults 55-65 yo caused by defect that increases permeability of hydrogen ions in the mucosa
gastric ulcers
Risk Factors for \_\_\_\_\_\_\_: H. Pylori NSAIDS duodenal reflux Type A: Immune chronic gastritis
Gastric Ulcers
Symptoms of _______:
pain that occurs immediately after eating then relieved
N/V
anorexia
Gastric Ulcers
inflammation of the vermiform appendix due to obstruction by fecalith (stone made of feces)
appendicitis
Symptoms of \_\_\_\_\_\_\_\_: epigastric or peri-umbilical pain in 1st 24 hrs increasing in intensity over 3-4 hrs RLQ pain with rebound tenderness at McBurney's point n/v anorexia fever diarrhea (especially in children) sense of constipation LLQ tenderness leukocytosis (on CBC)
appendicitis
presence of out-pouching herniations of mucosa through the colon muscular wall
diverticular disease
Risk Factors for \_\_\_\_\_\_\_\_\_: Older age (>60) Smoking Obesity Genetic predisposition Diet Physical inactivity ASA /NSAIDS
diverticular disease
Diverticular Disease is most common in…
left colon (descending and sigmoid colon)
chronic inflammatory disease most commonly of the mucosa of the rectum and sigmoid colon, where large ulcers form
Ulcerative Colitis (UC)
UC starts at the rectum but may extend to…
the entire colon
Clinical Manifestations of \_\_\_\_\_: bloody diarrhea water diarrhea passage of purulent mucous lower abdominal pain rare: shock w/ severe blood loss
Ulcerative Colitis (UC)
in acute phase of UC, fever is caused by…
activated macrophages and cytokines
UC for multiple years (7-10) can increase risk of…
colon cancer
Risk Factors for \_\_\_\_\_\_\_: 20-40 yo Family Hx Jewish descent Caucasian and northern European
Ulcerative Colitis (UC)
UC is limited to _____ and does not involve _____
mucosa, skip lesions
in chronic UC, _______ develops from rapidly regenerating epithelium
inflammatory polyps
an idiopathic, autoimmune, inflammatory disorder that may affect any part of the GI tract from the mouth to the anus (ascending and transverse colon most common sites)
Chron’s Disease
inflammatory bowel disorder that results in transmural inflammation and skip lesions (normal areas interspersed with abnormal areas)
Chron’s Disease
progression of Chron’s causes
abscess formation
crypt destruction
cobblestone projections of inflamed tissue/fissures, surrounded by areas of ulceration
Chron’s Disease
Chronic inflammation of all layers of intestinal wall resulting from blockage of lymphoid and lymphatic vessels
Chron’s Disease
Clinical Manifestations of _________:
only sx may be “irritable bowel”
Intermittent bouts of fever, diarrhea (if the diarrhea is bloody, it isn’t as severe or bloody as seen with ulcerative colitis)
> 5 stools per day
RLQ pain and may have RLQ mass and tenderness.
Anemia may occur due to malabsorption of iron, B12 and folic acid
Weight loss
Anal fissure, perianal abscess and fistulas
Steatorrhea (excretion of abnormal amounts of fat with the feces d/t reduced absorption of fat by the intestines)
Chron’s Disease
Diverticula form at _____ in the colon wall
weak points where arteries penetrate
lack of fiber and altered intestinal microbe might contribute to…
diverticular disease
_____ and ______ causes intestinal wall thickening and contributes to increased pressure and herniation
increased collagen and elastin deposits
Symptoms of \_\_\_\_\_\_\_: may be asymptomatic diarrhea constipation flatulence
Diverticulosis
Symptoms of _______:
fever
acute LLQ pain
leukocytosis
Diverticulitis
chronic inflammatory disease most commonly of the mucosa of the rectum and sigmoid colon where large ulcers form
Ulcerative Colitis
UC could be caused by…
dietary habits
infection
genetics
immunology
____ protects against UC
smoking
UC begins as inflammation at the base of _____
the crypts of Lieuberkuhn
Cardinal feature of Chron’s Disease
granulomas that form on the intestinal wall
Chron’s Disease increases risk of…
intestinal adenocarcinoma
a disorder of brain-gut interaction characterized by abd pain with altered bowel habits
Irritable Bowel Syndrome (IBS)
IBS is more common in _____
women, youth, middle-aged
Hep A is transmitted through…
fecal-oral
enzyme that digests carbs/sugars
amylase
enzyme that digests protein
tripsin
when tripsin regurgitated back to the pancreas
auto digestion
What lab tests do we order for appendicitis?
CBC w/ diff (WBC >10k w/ left shift)
type of colon polyp that has 100% chance of becoming cancer
familial adenomatous polypopsis
These manifestations are indicative of problem with the \_\_\_\_\_\_\_\_ colon: pedunculated polyps anemia (Fe deficient) fatigue dark red/mahogony stools (melena) unusual to see obstruction
ascending
These manifestations are indicative of problem with the ________ colon:
small sessile polyp/lesion that can ulcerate
grows circumferentially
bright red rectal bleeding
obstruction (in 8-20% of cases, this is the only sx)
progressive abd distention, pain, n/v, constipation
descending
________ is usually asymptomatic until advanced disease
colorectal cancer
higher risk for cancer is associated with _____ ulcers
gastric
alarm signs with IBS
pain that awakens the patient at night fever bleeding anemia sudden weight loss
type of ulcers seen in patients w/ increased ICP in the esophagus or stomach
Cushing’s ulcers
Risk Factors for \_\_\_\_\_: age less than 40 family hx jewish descent slight increase in women more common in smokers
Chron’s
These GI disorders cause that cause _____:
ulcers
cancer
esophogeal varices
Iron deficient anemia
pre-hepatic or excessive bili production (hemolysis)
unconjugated
pre-hepatic or excessive bili production (hemolysis) results in _____ bilirubin
unconjugated (indirect)
hepatic, post-hepatic or extra-hepatic type of bilirubin
conjugated (direct)
hormones associated with obesity
leptin
ghrelin
adinopectin
Where is leptin produced?
in adipose cells
What does obesity cause concerning leptin?
increases it
Where is ghrelin produced?
stomach
Ghrelin is produced in response to…
hunger
Adinopectin is produced where?
abdominal (visceral) fat
In obesity, what happens with adinopectin?
decreases it so risk for CV disease is increased
_____ are more often affected by pyloric stenosis
Boys
Which ethnic group is more affected by pyloric stenosis?
White
True celiac Sprue Disease is what type of disease?
autoimmune
Celiac disease affects the _____ of the GI track
small bowel
What triggers gluten sensitivity?
Gliaden
Percentage of people w/ true celiac disease?
1%
The most common site of lesions in Chron’s
ascending and transverse colon
If the small intestine is involved in Chron’s, the most common site would be…
distal small intestine
endoscopy may show strictures or fistula in patient with…
Chron’s
tissue sample of small intestine shows atrophy blunting of villi increased intraepithelial lymphocytes & other immune cells normal mucosal thickness in what disease?
Celiac
Symptoms of \_\_\_\_\_\_\_\_\_: tachycardia hypotension pallor weakness sweating dizziness abd pain epigastric fullness n/v diarrhea B12, folate, Ca+, fat-soluble vitamin deficiency
Dumping Syndrome
______ bilirubin increases because the body metabolizes the heme component of the red blood cell that was destroyed.
unconjugated (indirect)
Intrahepatic disorders can lead to _________ hyperbilirubinemia
conjugated or unconjugated
What level of serum bilirubin on labs would you expect to see jaundice?
2.5-3 mg/dL
3 phases of bilirubin metabolism
prehepatic
intrahepatic
posthepatic
prehepatic bilirubin metabolism
hemolytic
intrahepatic bilirubin metabolism
hepatocellular disease
posthepatic bilirubin metabolism
obstructive
posthepatic bilirubin metabolism
obstructive/ extrahepatic
lab findings of acute Hep B
+ HbsAg
+Anti-HBc IgM
lab diagnosis of Hep C
serum HCV RNA
anti-HCV IgG
elevated alanine aminotransferase
IBS-C
IBS w/ constipation
IBS-D
IBS w/ diarrhea
IBS-M
IBS w/ diarrhea & constipation
symptoms of IBS are relieved by…
defecation
this condition has a 40% chance of developing into colorectal cancer
Hereditary nonpolyposis CRC
signs of colorectal tumor in the ________ colon:
melena (dark red/mahogany stools)
possible anemia
normal shaped stool
ascending
signs of colorectal tumor in the \_\_\_\_\_\_\_\_ colon: intermittent cramping fullness obstruction (due to lumen narrowing) pencil/ribbon-like stool bright red bleeding
descending
signs of colorectal tumor in the \_\_\_\_\_\_\_\_ : obstruction bowel habit change constipation diarrhea urgent need to defecate upon awakening dull ache in rectum/sacrum
rectum
Risk Factors for \_\_\_\_\_\_: age > 50 red meat consumption alcohol use smoking African American descent obesity Type II DM
Colorectal Cancer
type of polyp that traverses the muscularis mucosae and becomes invasive and highly malignant
adenomatous polyp
criteria for for polyps to have malignant potential:
> 2 cm
numerous
villous architecture
exogenous chemicals that stimulate adipogenesis and fat storage and interfere with neuroendocrine control of appetite and satiety
obesogens
hormone that promotes insulin resistance and increased blood glucose
resistin
High levels are ineffective at decreasing appetite and energy expenditure
Central Leptin Resistance
Ghrelin enhances…
appetite
hormone that has has insulin-sensitizing, anti-inflammatory, and antiatherogenic properties until visceral obesity occurs
adiponectin
In _____ obesity, levels of adiponectin decrease, and this contributes to insulin resistant and Type 2 DM, as well as cardiovascular disease.
central (visceral)
produces low grade inflammation of white adipose tissue and lipolysis
obesity
Risk Factors for \_\_\_\_\_\_\_\_: Prolonged fasting or rapid weight loss Pregnancy Oral contraceptives (progesterone slows bile) Obesity 5Fs: female, forty, fat, fertile, fair Diabetes High fat diet Low HDL and hypertriglyceridemia Native Americans – especially Pima Indians
Cholelithiasis (Gallstones)
type of gallstones that are associated with hyperbilirubinemia and may be brown or black
pigmented stones
most common type of gallstones that are formed by bile that is saturated in cholesterol
cholesterol stones
Symptoms of \_\_\_\_\_\_\_\_: *often asymptomatic* epigastric and right hypochondrium pain intolerance of fatty foods & cabbage heartburn flatulence pruritus jaundice
Cholelithiasis (Gallstones)
acute inflammation of the gallbladder wall usually caused by bile duct obstruction and gallstones
cholecystitis
cholecystitis may be accompanied by…
bacterial infection
Symptoms of _______:
fever
leukocytosis
rebound tenderness and guarding
Severe RUQ pain that radiates to the back
Murphy’s sign: RUQ tenderness upon palpation of gallbladder
Cholecystitis
lab diagnostics of cholecystitis
maybe…
elevated bilirubin
elevated alkaline phosphatase
most common diagnostic tool for cholecystitis
Ultrasound
most sensitive diagnostic tool for cholecystitis
HIDA scan
epigastric or midabdominal pain that may radiate to the back severe tenderness w/ palpation n/v abd distention hypoactive bowel sounds low fever
pancreatitis symptoms
if there is a gallstone obstruction in pancreatitis, labs would show…
increased LFTs
elevated lipase is primary marker for pancreatitis and what other labs will be affected?
leukocytosis
hyperlipidemia
hypocalcemia
elevated amylase
pancreatitis is diagnosed by…
CT scan
Complications of \_\_\_\_\_\_\_\_\_\_\_ ARDS heart failure renal failure intraabdominal HTN SIRS
pancreatitis
Symptoms of \_\_\_\_\_ RUQ pain malaise anorexia nausea low-grade fever jaundice dark urine
Hep A
incubation period of Hep A
15-50 days (avg 28)
acute Hep A would have lab results of…
+ Anti-HAV IgM
+ Anti-HAV IgG would indicate…
past infection and immunity to Hep A
incubation period of Hep B
45-160 days (avg 120)
liver cancer risk is greatest with coinfection of…
Hep B and Hep C
symptoms of \_\_\_\_\_ (discrete) jaundice elevated ALT n/v anorexia fever malaise RUQ pain
Hep B
prodomal stage of \_\_\_\_\_ could have no sx OR rash arthralgia arthritis angioedema serum sickness glomerulonephritis jaundice
Hep B
lab findings of chronic Hep B
+ anti-HBc (total Hep B core antibody)
lab finding of recovery or immunity to Hep B
+ anti-HBs (Hep B surface antibody)
________ provides post-exposure prophylaxis to Hep B
HBV immunoglobulin
Hep C is transmitted via
blood to blood
Symptoms of \_\_\_\_\_ Fever fatigue dark urine clay-colored stool abd pain loss of appetite N/V joint pain jaundice
Hep C
Causes of Esophagitis (P.I.E.C.E.)
Pills (tetracyclines) Infectious (HSV, Candida) Eosinophils (Inflammatory) Caustic (ingestion of poison) Everything else or gErd
incubation period of Hep C
14-180 days (avg 45 days)
type of bilirubin that is water-soluble and appears in urine
unconjugated bili
jaundice caused by excess hemolysis of RBC
hemolytic jaundice
jaundice caused by gallstones, tumor or inflammation of the ducts
obstructive jaundice
jaundice caused by decreased conjugation, cirrhosis or hepatitis
hepatocellular
hemolytic jaundice = _______ bilirubin
unconjugated
obstructive jaundice = _______ bilirubin
conjugated
hepatocellular jaundice = _______ bilirubin
mostly conjugated but can be unconjugated
celiac disease is most often seen in the ______
duodenum
in celiac disease, ______ enzymes and ____ are decreased
pancreatic; bile
leptin sends signals to hypothalamus to _______ appetite but this stops working in obesity
inhibit