APPENDICITIS
• Appendicitis isinflammation of the
vermiform appendix caused by an
obstruction of the intestinal lumen
from infection, stricture, fecal mass,
foreign body, or tumor.
3.
Pathophysiology and Etiology
•Obstruction is followed by edema,
infection, and ischemia.
• As intraluminal tension develops,
necrosis and perforation usually
occur.
• Appendicitis can affect any age-
group; most common in
adolescents/young adults, especially
males.
4.
Clinical Manifestations
• Generalizedor localized abdominal pain in
the epigastric or periumbilical areas and
upper right abdomen. Within 2 to 12 hours,
the pain localizes in the right lower
quadrant and intensity increases.
• Anorexia, moderate malaise, mild fever,
nausea and vomiting.
• Usually constipation occurs; occasionally
diarrhea.
• Rebound tenderness, involuntary guarding,
generalized abdominal rigidity.
5.
Diagnostic Evaluation
• Physicalexamination consistent with clinical manifestations.
• WBC count reveals moderate leukocytosis (10,000 to
16,000/mm3) with shift to the left (increased immature
neutrophils).
• Urinalysis to rule out urinary disorders.
• Abdominal X-ray may visualize shadow consistent with
fecalith in appendix; perforation will reveal free air.
• Abdominal ultrasound or CT scan can visualize appendix and
rule out other conditions, such as diverticulitis and Crohn's
disease. Focused appendiceal CT can quickly evaluate for
appendicitis.
6.
Management
• Surgery (appendectomy)is indicated.
– Simple appendectomy or laparoscopic
appendectomy in absence of rupture or
peritonitis.
– An incisional drain may be placed if an abscess or
rupture occurs.
• Preoperatively maintain bed rest, NPO
status, I.V. hydration, possible antibiotic
prophylaxis, and analgesia.
Nursing Assessment
• Obtainhistory for location and extent of pain.
• Auscultate for presence of bowel sounds; peristalsis may be
absent or diminished.
• On palpation of the abdomen, assess for tenderness anywhere in
the right lower quadrant, but usually localized over McBurney's
point (point just below midpoint of line between umbilicus and iliac
crest on the right side). Assess for rebound tenderness in the
right lower quadrant as well as referred rebound when palpating
the left lower quadrant.
• Assess for positive psoas sign by having the patient attempt to
raise the right thigh against the pressure of your hand placed over
the right knee. Inflammation of the psoas muscle in acute
appendicitis will increase abdominal pain with this maneuver.
• Assess for positive obturator sign by flexing the patient's right
hip and knee and rotating the leg internally. Hypogastric pain with
this maneuver indicates inflammation of the obturator muscle.
9.
Nursing Diagnoses
• AcutePain related to inflamed
appendix
• Risk for Infection related to
perforation
10.
Nursing Interventions
• Preoperativenursing care is listed; for postoperative care,
see Caring for the Patient Undergoing Gastrointestinal
Surgery.
Relieving Pain
• Monitor pain level, including location, intensity, pattern.
• Assist patient to comfortable positions, such as semi-
Fowler's and knees up.
• Restrict activity that may aggravate pain, such as coughing
and ambulation.
• Apply ice bag to abdomen for comfort.
• Give antiemetics and analgesics as ordered and evaluate
response.
• Avoid indiscriminate palpation of the abdomen to avoid
increasing the patient's discomfort.
11.
Nursing Interventions
Preventing Infection
•Monitor frequently for signs and symptoms of worsening
condition indicating perforation, abscess, or peritonitis:
increasing severity of pain, tenderness, rigidity, distention,
ileus, fever, malaise, tachycardia.
• Administer antibiotics as ordered.
• Promptly prepare patient for surgery.
Patient Education and Health Maintenance
• Instruct patient to avoid heavy lifting for 4 to 6 weeks
after surgery.
• Instruct patient to report symptoms of anorexia, nausea,
vomiting, fever, abdominal pain, incisional redness or
drainage postoperatively.
12.
Evaluation: Expected Outcomes
•Verbalizes decreased pain to 2 or 3
level on 0-to-10 scale with positioning
and analgesics
• Afebrile; no rigidity or distention