GI disorders, Urinary Tract Disorders Flashcards
constipation is a symptom rather than a disease
-functional
-structural
-hypothyroidism
-neurologic
-celiac disease
-medications
-pregnancy
-functional: low fiber diet, motility disorders, sedentary lifestyle, dehydration
-medications: laxative overuse, anticholinergics, opioids, iron supplements
-more common in elderly adults
constipation is defined as less than ___ BMs per week
less than 3 BMS per week
diagnostic tests/findings only indicated with “red flags” including:
- abdominal pain, N/V
- weight loss
- melena, rectal bleeding
- rectal pain
- fever
- new onset older than age 50
treatment
-non pharm and pharm
non pharm: increase activity, increase fluids, high-fiber diet
pharm:
1. bulk-forming agents like psyllium husk- used to PREVENT constipation; do NOT use if signs of fecal impaction or obstruction; plan time for defecation
- stool softeners- docusate sodium (Colace)
-lowers surface tension, allows water to penetrate stool
-for patients with hard stools/straining - Osmotic laxatives- sorbitol, lactulose
- saline laxatives- magnesium hydroxide/milk of magnesia
-draw water into intestinal lumen; treats acute constipation - chloride channel activator- Lubiprostone
-GI motility enhancer
diarrhea also a symptom rather than a disease
-more than ___ stools/day
-defined as (acute vs chronic)
loose, watery stools three or more times a day
acute: less than 1 to 2 weeks duration
chronic: more than 3 weeks
T/F diagnostic tests/findings are not usually indicated for symptoms lasting less than 72 hours unless asx with bloody diarrhea or patient appears ill
true
BUT if persistent: stool eval, HIV testing, CBC, electrolytes, TSH (low in hyperthyroidism)
pharm
a. antimotility agents
b. antisecretory agents
c. antibiotics
a. antimotility agents: loperamide (Imodium)
-safe in pregnancy
b. antisecretory agents bismuth subsalicylate (Pepto-Bismol)
-NOT rec in pregnancy
c. antibiotics
-only when pathogen is identifiable
hemorrhoid symptoms
-internal
-external
-managements
-internal: painless, bright red bleeding with defecation
-external: protrude when straining, blue, shiny masses if thrombosed (refer immediately)
-MNGMT: sitz bath, witch hazel pads, topical anesthetic, avoid straining with stool softeners (Colace)
Irritable bowel syndrome (IBS)
-abdominal pain
-changes associated with…
-subgroup identifications (constipation IBS, diarrhea IBS, mixed/alternating IBS)
chronic condition; recurrent abdominal pain or discomfort at least 3 days per month in previous 3 months
associated with two or more of the following
a. improvement with defecation
b. onset associated with change in stool frequency
c. onset associated with change in stool form
one or more of the following symptoms on at least 25% of occasions:
1. abnormal stool frequency- less than 3 times per week or more than 3 times per day
2. abnormal stool forms (lumpy/hard vs loose)
3. abnormal stool passage
4. bloating, feelings of abdominal distension
5. paassage of mucus
T/F diagnostic tests for IBS is not indicated for patients younger than 50 years old who meet above criteria, have normal exam, or lack of symptoms
TRUE
-colonoscopy if patient > 50, weight loss, anemia, evidence of GI bleeding
important education for patients with IBS
reassurance of benign nature of disease!!!
-decrease caffeine, alcohol, fatty foods, gas-forming foods
-increase fiber in diet
-stress management, relaxation techniques
-regular physical activity
-probiotics
treatment of. IBS should be guided by patient’s symptoms
a. pain predominant
b. diarrhea predominant
c. constipation predominant
a. pain predominant
1. antispasmodic/anticholinergics:
2. tricyclic antidepressants
b. diarrhea predominant
1. Loperamide (Imodium), diphenoxyalate (Lomotil)
c. constipation predominant
1. fiber supplements: psyllium
2. osmotic laxative- lactulose, sorbitol
IBS referral is required…
in those older than 50, weight loss, suggestive of GI bleeding
Appendicits
-incidence
-symptoms
-physical findings: McBurneys, Psoas, Rovsing’s, obturator
-pain begins in epigastrum or periumbilical area then localizes to RLQ after several hours
-anorexia, N/V
-sense of constipation
-fever: 99-100
-tenderness localized to McBurney’s point (pain worsened and localized with cough)
-absent bowel sounds
-positive psoas sign: pain with flexion of hip against resistance or hyperextension
-positive Rovsing’s sign- RLQ pain elicited when LLQ is deeply palpated and pressure is released
-positive obturator sign: pain with passive internal rotation of flexed right hip/knee
Referral for immediate surgery
what should be ruled out when appendicitis is suspected?
ectopic pregnancy! pregnancy test
Peptic Ulcer Disease definition/etiology
-chronic mucosal ulcerative disorder involving the upper GI tract; too much acid and pepsin production for gastric and duodenal mucosa to protect itself
-H. pylori is established causative factor
-NSAID-related ulcers are more likely to be GASTRIC
symptoms of PUD
-how long after eating?
-burning or deep epigastric pain that occurs 1 to 3 hours after meals; relieved by ingestion of food or antacids
-pain commonly causes early-morning waking
-cluster of symptoms lasting a few weeks followed by symptom-free periods
GASTRIC: food may make it worse
diagnostic test includes serologic testing for H pylori
- serologic test: ELISA detects IgG antibodies; indicates current or past infection
- stool antigen test- reverts to negative within 5 days
- urea breath test- detects active infection
PUD management
-non pharm
-avoid ASA and NSAIDs
-smoking cessation
-decrease alcohol intake
-use stress management
NO FUN!!!
PUD pharm management
1. when disease is NOT due to H. pylori
- ulcers caused by H. pylori
- NOT h pylori:
-Histamine 2 Receptor Antagonists- Ranitidine (Zantac)
-PPI: omeprazole (Prilosec)
^^both can alter absorption of other drugs - ulcers caused by H. pylori
-PPI triple therapy: PPI, amoxicillin, clarithromycin
-Bismuth quadruple therapy: bismuth subsalicylate, metronidazole, tetracycline, PPI
Viral hepatitis defintions
group of systemic infections involving the liver with common clinical manifestations caused by different viruses with distinctive patterns
- Hepatitis A virus (HAV)
-spread via
a. oral-fecal route by person to person contact or eating/drinking contaminated food or water; spreads readily in households and daycare
b. self-limited; no carrier state or chronic-liver disease2.
- Hepatitis B Virus (HBV)
-spread via
a. transmitted via percutaneous or mucosal contact with infectious blood or body fluids (saliva, vaginal secretions, semen) by parenteral, sexual, PERINATAL exposure
b. spectrum of illness: asymptomatic to acute illness
c. 10% of people infected as adults and 90% infected as neonates become chronic carriers
- Hepatitis C Virus (HCV)
-spread vis
-IVDU, infected blood through transfusion prior to 1992, much less frequently through sex, occupational, perinatal exposure
-acute disease often mild in adults; asymptomatic in chilren
-80% of infected individuals develop chronic hepatitis, with 20-30% eventually developing cirrhosis
- Hepatitis D Virus (HCD)
-which other hepatitis is needed for this to replicate?
-needs HBV to replicate
-also spread via percutaneous or mucosal exposure to infectious blood as a co-infection with HBV
-suspect superinfection with HDV in patient who presents with fulminant hepatitis and chronic HBV
- hepatitis E virus
-spread via
oral fecal route!! just like hep A
-endemic in developing countries
-more common in children and young adults
symptoms- all viral types produce very similar syndromes; severity can vary
- phase 1- incubation
- phase 2- pre-icteric (prodromal)
- phase 3- icteric
- phase 4- convalescence
- phase 1- incubation
-asymptomatic lasting weeks to months - phase 2- pre-icteric (prodromal)
-three to 10 days in length
-malaise, fatigue, anorexia, nausea, vomiting, skin rash, flulike aches, headache, skin rash, change in sense of smell or taste; aversion to cigarettes - phase 3- icteric
-one to four weeks in length
-RUQ pain, dark-colored urine, clay-colored stools
-jaundice of skin, sclera, nail beds - phase 4- convalescence
-may last weeks to months
-chronic disease may develop in certain types
-Hep B, C, D may be fatal; HEV has 10-20% mortality rate in pregnant women
physical findings in in hepatitis
-what organs are affected?
- rash- maculopapular and urticarial lesion
- low grade fever
- slight jaundice, yellow sclera
- hepatomegaly
- splenomegaly
diagnostic tests for hepatitis include (3)
- viral serologies
- urinalysis- + for protein, bilirubin
- LFTS with marked elevations
HAV igM antibody vs IgG antibody
IgM: positive, current or recent infection, resolves in 6 months
IgG: positive; indicates immunity due to prior infection or vaccination
HBV
-surface antigen (HBsAg)
-surface antibody (anti-HBs)
-HBV core antibody (anti-HBc)
-HBV core IgM antibody
-HBV e antigen
-HBV DNA
-HBV surface antigen (HBsAg): positive; acute and chronic infection, indicates person is INFECTIOUS
-HBV surface antibody: positive; immune due to prior infection or vaccination
-HBV core antibody (anti-HBs): positive; acute and chronic infection, persists for life
-HBV core IgM antibody (IgM anti-HBV): positive; acute infection; resolves in 4-6 months
-HBV e antigen: positive; acute infection, highly INFECTIOUS
-HBV DNA: positive; acute and chronic infection
HCV antibody (anti-HCV)
HCV RNA
HCV antibody (anti-HCV): positive; current or resolved infection, persists for life
HCV RNA: positive confirms current infections, persists with chronic infection
HDV antibody
HDV IgM antibody
HDV antibody: positive with positive HBV surface antigen, current or past HBV/HDV coinfection or superinfection
HDV IgM antibody: positive; positive HBV surface antigen, current or past HBV/HDV coinfection or superinfection; negative: resolved HDV infection
non pharm management/patient education regarding hepatitis
a. activity as tolerated; avoid strenuous activity or contact sports
b. hydration
c. maintain adequate caloric intake and balanced diet
d. d/c all meds but essential
e. avoid alcohol (obvi)
-careful disposal of infected waste, SCRUPULOUS hand-washing and food handling, safer sex practices, avoid blood contamination (DO NOT SHARE toothbrushes, razors, needles)
hepatitis prevention
a. hep A
b. hep B
- HAV
-immune globulin rec for travelers going to countries for longer than 6 months where HAVs endemic - HBV
-hep b immune globulin: give as prophylaxis to infants born to HBsAg positive women; give within 14 days of sexual exposure
cholecystitis definition and etiology
acute or chronic distention and inflammation of gallbladder, commonly r/t obstruction of cystic or bile ducts by gallstones (cholesterol, mostly) –> results in inflammation
risk factors for cholecystitis (5)
-female gender
-advanced age
-obesity
-pregnancy
-rapid weight loss
symptoms of cholecystitis
-RUQ epigastrium pain that is severe, steady, localized
-more common at night
-pain typically sudden and may last 3 hours; may be accompanied by N/V
acute cholecystitis
-physical findings: Murphy’s sign
- fever
- Murphy’s sign: inspiratory arrest secondary to pain during deep palpation of right subcostal region
what diagnostic technique can we use for acute cholecystitis that has a 95% sensitivity?
-labs
ultrasound!!!
95% sensitivity for detecting stones in the gallbladder
labs: r/o pregnancy, CBC with left shift, LFTS elevated serum bili, pancreatic enzymes: increased amylase and lipase
T/F elective cholecystectomy is recommended for most patients with symptomatic gallstones
true
GERD
-repeated movement of gastric contents from the stomach into the esophagus
-when esophagus is repeatedly exposed to refluxed material for prolonged periods of time, inflammation of esophagus can occur
diagnostic evaluation if symptoms are chronic or refractory to therapy or if esophageal complications are suspected….
a. endoscopy: useful for diagnosis of esophagitis, stricture, Barrett’s esophagus; indicated with: dysphagia, unplanned weight loss, evidence of GI bleeding or iron deficiency anemia, screen for Barretts if 10 years or more of GERD symptoms
management of GERD
-non pharm
-pharm
NON PHARM
-weight loss if obese
-smoking cessation
-elevate HOV
-avoid recumbency 3 hours after eating if symptoms worsen when supine
-reduce fat to no more than 30% of calories
-reduce consumption of alcohol, chocolate, colas, coffee, peppermint, citrus juice, tomato products
PHARM
-commercially available antacids are useful for mild, infrequent
-h2 receptor antagonists
-PPIS (acid suppressant): most effective agents for healing esophagitis and preventing complications