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Acute Appendicitis. Epidemiology. The incidence of appendectomy appears to be declining due to more accurate preoperative diagnosis. Despite newer imaging techniques, acute appendicitis can be very difficult to diagnose. . Pathophysiology.

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epidemiology
Epidemiology
  • The incidence of appendectomy appears to be declining due to more accurate preoperative diagnosis.
  • Despite newer imaging techniques, acute appendicitis can be very difficult to diagnose.
pathophysiology
Pathophysiology
  • Acute appendicitis is thought to begin with obstruction of the lumen
  • Obstruction can result from food matter, adhesions, or lymphoid hyperplasia
  • Mucosal secretions continue to increase intraluminal pressure
pathophysiology4
Pathophysiology
  • Eventually the pressure exceeds capillary perfusion pressure and venous and lymphatic drainage are obstructed.
  • With vascular compromise, epithelial mucosa breaks down and bacterial invasion by bowel flora occurs.
pathophysiology5
Pathophysiology
  • Increased pressure also leads to arterial stasis and tissue infarction
  • End result is perforation and spillage of infected appendiceal contents into the peritoneum
pathophysiology6
Pathophysiology
  • Initial luminal distention triggers visceral afferent pain fibers, which enter at the 10th thoracic vertebral level.
  • This pain is generally vague and poorly localized.
  • Pain is typically felt in the periumbilical or epigastric area.
pathophysiology7
Pathophysiology
  • As inflammation continues, the serosa and adjacent structures become inflamed
  • This triggers somatic pain fibers, innervating the peritoneal structures.
  • Typically causing pain in the RLQ
pathophysiology8
Pathophysiology
  • The change in stimulation form visceral to somatic pain fibers explains the classic migration of pain in the periumbilical area to the RLQ seen with acute appendicitis.
pathophysiology9
Pathophysiology
  • Exceptions exist in the classic presentation due to anatomic variability of the appendix
  • Appendix can be retrocecal causing the pain to localize to the right flank
  • In pregnancy, the appendix ca be shifted and patients can present with RUQ pain
pathophysiology10
Pathophysiology
  • In some males, retroileal appendicitis can irritate the ureter and cause testicular pain.
  • Pelvic appendix may irritate the bladder or rectum causing suprapubic pain, pain with urination, or feeling the need to defecate
  • Multiple anatomic variations explain the difficulty in diagnosing appendicitis
history
History
  • Primary symptom: abdominal pain
  • ½ to 2/3 of patients have the classical presentation
  • Pain beginning in epigastrium or periumbilical area that is vague and hard to localize
history12
History
  • Associated symptoms: indigestion, discomfort, flatus, need to defecate, anorexia, nausea, vomiting
  • As the illness progresses RLQ localization typically occurs
  • RLQ pain was 81 % sensitive and 53% specific for diagnosis
history13
History
  • Migration of pain from initial periumbilical to RLQ was 64% sensitive and 82% specific
  • Anorexia is the most common of associated symptoms
  • Vomiting is more variable, occuring in about ½ of patients
physical exam
Physical Exam
  • Findings depend on duration of illness prior to exam.
  • Early on patients may not have localized tenderness
  • With progression there is tenderness to deep palpation over McBurney’s point
physical exam15
Physical Exam
  • McBurney’s Point: just below the middle of a line connecting the umbilicus and the ASIS
  • Rovsing’s: pain in RLQ with palpation to LLQ
  • Rectal exam: pain can be most pronounced if the patient has pelvic appendix
physical exam16
Physical Exam
  • Additional components that may be helpful in diagnosis: rebound tenderness, voluntary guarding, muscular rigidity, tenderness on rectal
physical exam17
Physical Exam
  • Psoas sign: place patient in L lateral decubitus and extend R leg at the hip. If there is pain with this movement, then the sign is positive.
  • Obturator sign: passively flex the R hip and knee and internally rotate the hip. If there is increased pain then the sign is positive
physical exam18
Physical Exam
  • Fever: another late finding.
  • At the onset of pain fever is usually not found.
  • Temperatures >39 C are uncommon in first 24 h, but not uncommon after rupture
diagnosis
Diagnosis
  • Acute appendicitis should be suspected in anyone with epigastric, periumbilical, right flank, or right sided abd pain who has not had an appendectomy
diagnosis20
Diagnosis
  • Women of child bearing age need a pelvic exam and a pregnancy test.
  • Additional studies: CBC, UA, imaging studies
diagnosis21
Diagnosis
  • CBC: the WBC is of limited value.
  • Sensitivity of an elevated WBC is 70-90%, but specificity is very low.
  • But, +predictive value of high WBC is 92% and –predictive value is 50%
  • CRP and ESR have been studied with mixed results
diagnosis22
Diagnosis
  • UA: abnormal UA results are found in 19-40%
  • Abnormalities include: pyuria, hematuria, bacteruria
  • Presence of >20 wbc per field should increase consideration of Urinary tract pathology
diagnosis23
Diagnosis
  • Imaging studies: include X-rays, US, CT
  • Xrays of abd are abnormal in 24-95%
  • Abnormal findings include: fecalith, appendiceal gas, localized paralytic ileus, blurred right psoas, and free air
  • Abdominal xrays have limited use b/c the findings are seen in multiple other processes
diagnosis24
Diagnosis
  • Graded Compression US: reported sensitivity 94.7% and specificity 88.9%
  • Basis of this technique is that normal bowel and appendix can be compressed whereas an inflamed appendix can not be compressed
  • DX: noncompressible >6mm appendix, appendicolith, periappendiceal abscess
diagnosis25
Diagnosis
  • Limitations of US: retrocecal appendix may not be visualized, perforations may be missed due to return to normal diameter
diagnosis26
Diagnosis
  • CT: best choice based on availability and alternative diagnoses.
  • In one study, CT had greater sensitivity, accuracy, -predictive value
  • Even if appendix is not visualized, diagnose can be made with localized fat stranding in RLQ.
diagnosis27
Diagnosis
  • CT appears to change management decisions and decreases unnecessary appendectomies in women, but it is not as useful for changing management in men.
special populations
Special Populations
  • Very young, very old, pregnant, and HIV patients present atypically and often have delayed diagnosis
  • High index of suspicion is needed in the these groups to get an accurate diagnosis
treatment
Treatment
  • Appendectomy is the standard of care
  • Patients should be NPO, given IVF, and preoperative antibiotics
  • Antibiotics are most effective when given preoperatively and they decrease post-op infections and abscess formation
treatment30
Treatment
  • There are multiple acceptable antibiotics to use as long there is anaerobic flora, enterococci and gram(-) intestinal flora coverage
  • One sample monotherapy regimen is Zosyn 3.375g or Unasyn 3g
  • Also, short acting narcotics should be used for pain management
disposition
Disposition
  • Abdominal pain patients can be put in 4 groups
  • Group 1: classic presentation for Acute appendicitis- prompt surgical intervention
  • Group 2: suspicious, but not diagnosed appendicitis- benefit from imaging and 4-6h observation with surgical consult if serial exam changes or imaging studies confirm
disposition32
Disposition
  • Group 3: remote possibility of appendicitis- observe in ED for serial exams; if no change and course remains benign patient can D/C with dx of nonspecific abd pain
  • Patients are given instructions to return if worsening of symptoms, and they should be seen by PCP in 12-24 h
  • Also advised to avoid strong analgesia
disposition33
Disposition
  • Group 4: high risk population(including elderly, pediatric, pregnant and immunocomprimised)- require high index of suspicion and low threshold for imaging and surgical consultation
crohn disease
Crohn Disease
  • Chronic granulomatous inflammatory disease of the GI tract.
  • Can involve any part of GI tract from mouth to anus
  • Ileum is involved in majority of cases
  • Confined to colon in 20%
  • Terms:regional enteritis, terminal ileitis, granulomatous ileocolitis
crohn disease36
Crohn Disease
  • Etiology and pathogenesis are unknown.
  • Infectious, genetic, environmental factors have been implicated.
  • Autoimmune destruction of mucosal cells as a result of cross-reactivity to antigens from enteric bacteria.
crohn disease37
Crohn Disease
  • Cytokines,including IL and TNF have been implicated in perpetuating the inflammatory response.
  • Anti-TNF(remicade) drugs have shown efficacy in treating Crohn disease
crohn disease38
Crohn Disease
  • Epidemiology: peak incidence is 15-22 years old with a second peak 55-66years
  • 20-30% increase in women
  • More common in European
  • 4 times more common in Jews than non-Jews
  • More common in whites vs blacks
  • 10-15% have family hx
crohn disease39
Crohn Disease
  • Pathology: most important is the involvement of all layers of the bowel and extension into mesenteric lymph nodes
  • Disease has skip areas between involved areas
  • Longitudinal deep ulcers and cobblestoning of mucosa are characteristic
  • These result in fissures, fistulas, and abscesses
crohn disease40
Crohn Disease
  • Clinical features: variable and unpredictable
  • Abd pain, anorexia, diarrhea, and weight loss are present in most cases
  • 1/3 of patients develop perianal fissures or fistulas, abscesses, or rectal prolapse
crohn disease41
Crohn Disease
  • Patients may present with lat complications including:
  • Obstruction, crampy abd pain, obstipation, intraabdominal abscess with fever
  • 10-20% have extraabdominal features such as: arthritis, uveitis, or liver disease
  • Crohn’s should also be considered when evaluating FUO
crohn disease42
Crohn Disease
  • Clinical course and manifestation depends of anatomic distribution.
  • 30% involves only small bowel, 30% only colon, and 50% involves both
crohn disease43
Crohn Disease
  • Recurrence rate is as high as 50% for those responding to medical management
  • Rate is even higher for those requiring surgery
  • Incidence of hematochezia and perianal disease is higher when the colon is involved
crohn disease44
Crohn Disease
  • Dermatologic complications: erythema nodosum and pyoderma gangrenosum
  • Ocular: episcleritis and uveitis
  • Hepatobiliary: pericholangitis, chronic hepatitis, primary sclerosing cholangitis, cholangiocarcinoma, pancreatitis, gallstones
crohn disease45
Crohn Disease
  • Vascular: thromboembolic disease, vasculitis, arteritis
  • Other: anemia, malnutrition, hyperoxaluria leading to nephrolithiasis, myeloplastic disease, osteomyelitis, osteonecrosis
crohn disease46
Crohn Disease
  • Complications: >75% of patients will require surgery within the first 20 years
  • Abscesses present with pain and tenderness, but may also have palpable masses or fever spikes
  • Most common fistula sites are between ileum and sigmoid colon, cecum, another ileal segment, or the skin
crohn disease47
Crohn Disease
  • Fistulas should be suspected when there is a change in bowel movement frequency, amount of pain or weight loss
  • GI bleed is common, but only 1% develop life threatening hemorrhage.
  • Toxic megacolon occurs in 6% of patients and results massive GI bleed 50% of the time
crohn disease48
Crohn Disease
  • Complications can also arise from the treatment of the disease
  • Sulfasalazine, steroids, immunosuppressive agents, and antibiotics can cause leukopenia, thrombocytopenia, fever, infection, diarrhea, pancreatitis, renal insufficiency, liver failure.
crohn disease49
Crohn Disease
  • Incidence of malignancy is 3 times higher in Crohn disease than in general population
crohn disease50
Crohn Disease
  • Diagnosis: history, Upper GI, air-contrast barium enema and colonoscopy
  • Characteristic radiologic findings in small intestine include: segmental narrowing, destruction of normal mucosal pattern, and fistulas.
crohn disease51
Crohn Disease
  • Colonoscopy is most sensitive for patients with colitis
  • Useful for detecting mucosal lesions, defining extent of involvement, occurrence of colon ca.
  • Abd CT is most useful for acute presentation
crohn disease52
Crohn Disease
  • Findings of bowel wall thickening, mesenteric edema, local abscess formation suggest Crohn disease.
crohn disease53
Crohn Disease
  • Differential Dx: lymphoma, ileocecal amebiasis, sarcoidosis, deep chronic mycotic infections involving GI tract, GI TB, Kaposi’s sarcoma, campylobacter, Yersinia, ulcerative colitis, C.diff, ischemic colitis.
crohn disease54
Crohn Disease
  • Tx: relief of symptoms, induction of remission, maintenance of remission, prevention of complications, optimizing timing of surgery, and maintenance of nutrition
  • Since the disease is virtually incurable, emphasis should be placed of relief of symptoms and preventing complications
crohn disease55
Crohn Disease
  • Initial ED management: focus on severity of attack, identifying possible complications such as obstruction, hemorrhage, abscess, toxic megacolon.
  • CBC, electrolytes, BUN/creatinine, and type and cross if appropriate
  • Plain films may be useful for obstruction, perforation or toxic megacolon
crohn disease56
Crohn Disease
  • Initial Tx: NPO, IVF resuscitation and correction of electrolytes
  • NG decompression if indicated, broad spectrum atbx(ampicillin or a cephalosporin, aminoglycoside, and flagyl) should be used for suspected fulminant colitis or peritonitis
crohn disease57
Crohn Disease
  • IV steroids: hydrocortisone 300mg qd, methylprednisone 48mg qd, or prednisolone 60mg qd should be used for severe disease
  • Sulfasalazine 3-4g qd can be effective for mild-moderate cases, although it has many toxic side effects
crohn disease58
Crohn Disease
  • Oral steroids are reserved for severe disease-prednisone 40-60mg qd
  • Immunosuppressive drugs:

6-MP or azathioprine are useful for steroid alternatives, healing fistulas, or in patients with contraindications to surgery

Response to immunosuppressant agents takes 3-6 months

crohn disease59
Crohn Disease
  • Flagyl and Cipro have been shown some improvement in perianal complications and fistulous disease.
  • Medically resistant or moderate cases may benefit from anti-TNF(Remicade) 5 mg/kg IV
  • Cellcept, etanercept, thalidomide, IL therapy may also be beneficial
crohn disease60
Crohn Disease
  • Diarrhea can be controlled using imodium, lomotil, or questran
crohn disease61
Crohn Disease
  • Disposition: patients with signs of fulminant colitis, peritonitis, obstruction, significant hemorrhage, dehydration, electrolyte/fluid imbalance should be hospitalized under the care of a surgeon or gastroenterologist
crohn disease62
Crohn Disease
  • Patients with chronic disease can be discharged home as long as there are no serious complications.
  • Alterations in maintenance therapy should be discussed with GI
  • Close follow up should be secured.
ulcerative colitis
Ulcerative Colitis
  • Chronic inflammatory disease of the colon.
  • Inflammation is more severe from proximal to distal colon
  • Rectum is involved in nearly 100%
  • Characteristic symptom is bloody diarrhea
  • Etiology remains unknown
ulcerative colitis64
Ulcerative Colitis
  • Epidemiology: similar to Crohn disease
  • More prevalent in US and northern Europe.
  • First degree relatives have 15 fold increase for UC and 3.5 fold increase for Crohn disease
ulcerative colitis65
Ulcerative Colitis
  • Pathology: involves mucosa and submucosa
  • Mucosal inflammation and formation of crypt abscesses, epithelial necrosis, and mucosal ulceration
  • Early stages mucosa membrane appears finely granular and friable
  • Severe cases show large oozing ulcerations and pseudopolyps
ulcerative colitis66
Ulcerative Colitis
  • Clinical features:
  • Mild: <4 bm per day, no systemic symptoms, and few extraintestinal manifestations. (account for 60% of all UC patients)
  • Severe: frequent bm’s, anemia, fever, wt loss, tachycardia, low albumin, frequent extraintestinal manifestations. (accounts for 15% of all patients and 90% of mortality)
ulcerative colitis67
Ulcerative Colitis
  • Moderate: manifesations are less severe and respond well to treatment. Typically have left sided colitis, but can have pancolitis.
ulcerative colitis68
Ulcerative Colitis
  • Characterized by: intermittent attacks of acute disease with remission between attacks
  • Unfavorable prognosis and increased mortality is seen with higher severity and extent of disease, short interval between attacks, and onset of disease after 60
ulcerative colitis69
Ulcerative Colitis
  • Extraintestinal complications: arthritis, ankylosing spondylitis, episcleritis, uveitis, pyoderma gangrenosum, erythema nodosum, liver disease(similar to that found in Crohn disease)
ulcerative colitis70
Ulcerative Colitis
  • Complications: hemorrhage, toxic megacolon, perirectal abscesses and fistulas, colon ca, perforation
ulcerative colitis71
Ulcerative Colitis
  • Dx: lab findings are nonspecific.
  • Diagnosis is made by Hx of abd cramps and diarrhea, mucoid stools, stool negative for ova/parasites, negative stool cultures
  • confirmation of disease by colonoscopy showing granular, friable, ulceration of the mucosa, and sometimes pseudopolyps
ulcerative colitis72
Ulcerative Colitis
  • Differential Dx: similar to that of Crohn disease.
  • Also be aware of STD’s when confined to the rectum
ulcerative colitis73
Ulcerative Colitis
  • Treatment:
  • Severe UC: IV steroids, fluid replacement, electrolyte correction, broad spectrum atbx(amp and clindamycin or flagyl)
  • Cyclosporine has been advocated for steroid refractory cases
  • NG for toxic megacolon just as in crohn disease
ulcerative colitis74
Ulcerative Colitis
  • Mild to moderate: majority of cases can be treated as outpatient with daily prednisone 40-60mg
  • Active proctitis, proctosigmoiditis, and left side colitis can be treated with 5-aminosalicylic acid enemas or topical steroid preparations
ulcerative colitis75
Ulcerative Colitis
  • Treatment is very similar to Crohn disease
  • Other supportive measures include metamucil or other bulking agents
  • Anti-diarrheals should be used with caution in case of toxic megacolon
ulcerative colitis76
Ulcerative Colitis
  • Disposition:Fulminant attacks should be hospitalized for aggressive IVF and elctrolyte correction.
  • Complications should be managed with appropriate surgical or GI consult
  • Mild-moderate: may be discharged with close follow up secured. Instructions on when to return should be given
pseudomembranous colitis
Pseudomembranous Colitis
  • Inflammatory bowel disorder with membrane-like yellowish plaques of exudate overlie and replace necrotic intestinal mucosa
pseudomembranous colitis78
Pseudomembranous Colitis
  • Epidemiology:
  • Clostridium Difficile- spore forming obligate anaerobic bacillus
  • 3 types: neonatal, post-operative and antibiotic associated
  • Risk factors: recent atbx, GI surgery, severe medical illness, advancing age
  • Transmission: direct contact and objects
pseudomembranous colitis79
Pseudomembranous Colitis
  • Pathophysiology: 10-25% of hospital patients are colonized
  • Diarrhea in recently hospitalized person should suggest C.difficile
  • Broad spectrum atbx such as clindamycin, cephalosporins, amp/amox- alter gut flora and allow C.difficile to flourish
  • However any atbx can lead to C.difficile
pseudomembranous colitis80
Pseudomembranous Colitis
  • C. difficile produces
  • toxin A enterotoxin
  • toxin B cytotoxin
  • Toxins interact and produce the colitis and associated symptoms
pseudomembranous colitis81
Pseudomembranous Colitis
  • Clinical features: from frequent mucoid, watery stools to profuse toxic diarrhea(>20-30 stools/day), abdominal pain, fever, leukocytosis, dehydration, hypovolemia
  • Stool exam may reveal fecal leukocytes
pseudomembranous colitis82
Pseudomembranous Colitis
  • Complications: severe electrolyte imbalance, hypotension, anasarca from low albumin, toxic megacolon, bowel perforation
  • Onset is typically 7-10 days after starting atbx therapy
pseudomembranous colitis83
Pseudomembranous Colitis
  • Extraintestinal complications are rare, but include: arthritis, visceral abscesses, cellulitis, necrotizing fasciitis, osteomyelitis, prostheitc device infection
pseudomembranous colitis84
Pseudomembranous Colitis
  • Diagnosis: hx of diarrhea that develops during or within 2 weeks of atbx treatment.
  • Confirmed by stool for C.difficile toxin and colonoscopy
  • Most labs use ELISA to detect C.difficile toxins even though there are many other modes
  • 5-20% of patients require more than one stool to diagnose
pseudomembranous colitis85
Pseudomembranous Colitis
  • Treatment: d/c atbx, supportive IVF, electrolyte correction, flagyl 250 mg qid, or vancomycin 125-250mg po qid(alternative regimen)
  • 25% of patients will respond to supportive measures only
  • Severely ill patients should hospitalized
pseudomembranous colitis86
Pseudomembranous Colitis
  • Relapses occur in 10-20% of patients
  • Use of anti-diarrheals should be avoided
  • Surgery or steroids are rarely needed
pseudomembranous colitis87
Pseudomembranous Colitis
  • Disposition:
  • Severe diarrhea, symptoms that persist despite outpatient management, or those with systemic response(fever, leukocytosis, severe abdominal pain) should be hospitalized
  • Suspected perforation, toxic megacolon or failure to respond to medical treatment need a surgical consult
pseudomembranous colitis88
Pseudomembranous Colitis
  • For patients who are discharged whom: good oral intake must be encouraged. Flagyl or vancomycin are equally effective for treatment.
diverticulitis
Diverticulitis
  • Acute inflammation of the wall of a diverticulum and surrounding tissue
  • Caused by either a micro- or macroperforation
diverticulitis90
Diverticulitis
  • Epidemiology:
  • Acquire disease of the colon has become common in industrialized nations
  • Approximately 1/3 of population will acquire diverticuli by age 50 and 2/3 by age 85
  • Rare <20 years
diverticulitis91
Diverticulitis
  • Diverticulitis is estimated in 10-25% of people with known diverticulosis
  • Incidence increases with age
  • Only 2-4 % are < 40
  • Diverticulitis in younger age is associated with more complications requiring surgical intervention
diverticulitis92
Diverticulitis
  • Frequency is slightly higher in men, the incidence is on the rise in women
diverticulitis93
Diverticulitis
  • Pathophysiology:
  • Cause is not known
  • Low residue diets have been implicated
  • Acute complications: Inflammation(and associated complications) and Bleeding
diverticulitis94
Diverticulitis
  • Inflammation is the most common complication of diverticulosis
  • Mechanism was thought to occur when fecal material was inspissated in the neck of a diverticulum, resulting in bacterial proliferation, mucous secretion, and distention
diverticulitis95
Diverticulitis
  • More commonly, it results from high pressure in the colon, erosion of diverticulum wall, microperforation, and inflammation.
  • Free perforation can occur with generalized peritonitis, but is uncommon
diverticulitis96
Diverticulitis
  • Other complications: obstruction and fistula formation between the bladder and diverticulum
diverticulitis97
Diverticulitis
  • Clinical Features: most common symptom is pain.
  • Described as steady, deep discomfort in the LLQ
  • Other complaints: change in bowel habit, tenesmus, dysuria, frequency, UTI, distention, nausea, vomiting,
diverticulitis98
Diverticulitis
  • Presentation may be indistinguishable for acute appendicitis
  • Diverticulitis should always be considered in patient >50 with abdominal pain
  • Perforation is characterized by sudden lower abdominal pain progressing general abdominal pain
diverticulitis99
Diverticulitis
  • Physical exam: frequently fever of 38 C, localized abdominal tenderness, voluntary guarding, rebound, rectal tenderness on left side, possibly occult blood +,
  • As always, Pelvic should be done with female
  • Watch for signs of peritonitis or perforation
diverticulitis100
Diverticulitis
  • Diagnosis: typically suspected by Hx and physical
  • Abdominal plain films can show partial SBO, free air, extraluminal air
  • CT is procedure of choice. Demonstrates inflammation of pericolic fat, diverticula, thickening of bowel wall, peridiverticular abscess
diverticulitis101
Diverticulitis
  • Barium enema can be done, but are insensitive and may cause perforation due to the introduction of barium at high pressures
  • Routine labs include: CBC, electrolytes, BUN/creatinine, UA
  • Sigmoidoscopy and colonoscopy are performed only after inflammation has decreased
diverticulitis102
Diverticulitis
  • Differential Dx:
  • Similar to that of appendicititis, Crohn disease, UC, and C.difficile colitis
diverticulitis103
Diverticulitis
  • Treatment:
  • NPO, IVF, electrolyte correction, NG for obstruction, Broad spectrum atbx, observation for complications
  • Outpatient management includes liquids only for 48 hours and oral antibiotics(Cipro, flagyl, bactrim, ampicillin)
diverticulitis104
Diverticulitis
  • Disposition:
  • Patients without signs of peritonitis or systemic infection maybe treated as outpatients with careful follow up arranged. Should be instructed to return for fever, increasing pain, unable to tolerate po.
diverticulitis105
Diverticulitis
  • If patient shows signs of systemic infection, perforation or peritonitis then they should be hospitalized with a surgical consult
questions
Questions:
  • 1. With a retrocecal appendix, the pain of acute appendicitis may localize to the right flank. (True or false)
  • 2. Outpatient antibiotics is the standard treatment of acute appendicitis. (True or False)
questions107
Questions:
  • 3. Special populations of people that may have delayed diagnosis of acute appendicitis due to atypical presentation include:
  • A.) very young patients
  • B.) elderly patients
  • C.) AIDS patients
  • D.) Pregnant patients
  • E.) all of the above
questions108
Questions:
  • 4. Crohn disease can involve:
  • A.) any part of the GI tract(from mouth to anus
  • B.) colon only
  • C.) esophagus only
  • D.) small intestine only
questions109
Questions:
  • 5. Ulcerative colitis and Crohn disease are both considered types of inflammatory bowel disease. (True or False)
  • Answers: 1T, 2F, 3E, 4A, 5T
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