GIT-DISORDERS

Constipation

• Definition:

  • An abnormal frequency of defecation; usually fewer than 3 bowel movements per week.

  • Often associated with hardening of stools, leading to difficulty and pain during passage.

• Normal Bowel Movements:

  • Typically 1-3 times a day.

• Symptoms:

  • Individuals may experience diarrhea with liquid stools due to intestinal and rectal irritation, particularly when severe constipation leads to impaction.

Possible Causes of Constipation

• Medications:

  • Tranquilizers

  • Anticholinergics

  • Narcotics

  • Antacids containing aluminum

• Rectal Disorders:

  • Hemorrhoids

  • Anal fissures

• Obstruction:

  • Tumors or cancers of the bowel

• Metabolic and Neurologic Disorders:

  • Diabetes Mellitus

  • Multiple Sclerosis

• Endocrine Conditions:

  • Hypothyroidism

  • Pheochromocytoma

• Lead Poisoning

• Irritable Bowel Syndrome (IBS)

• Connective Tissue Disorders:

  • Scleroderma

  • Systemic lupus erythematosus (SLE)

  • Diverticular disease

Causative Factors for Constipation

• Decreased physical activity: weakness, immobility.

• Lack of intra-abdominal pressure for stool passage.

• Busy lifestyles, leading to delayed or missed bowel movements.

• Low fiber intake and inadequate exercise.

• Stress and chronic laxative use.

• Aging and poor-fitting dentures.

Clinical Manifestations of Constipation

• Symptoms include:

  • Abdominal distention (swelling)

  • Borborygmus (stomach rumbling)

  • Pain and pressure.

  • Decreased appetite, headaches, fatigues.

  • Indigestion and sensation of incomplete emptying.

  • Straining at stool and small-volume hard stools.

Diagnostic Evaluation for Constipation

• Complete physical examination.

• Barium Enema:

  • A radiologic procedure where barium liquid is instilled into the large intestine, allowing imaging.

• Sigmoidoscopy:

  • Minimally invasive examination of the large intestine from the rectum to the last part of the colon.

• Guaiac Test:

  • Tests for hidden blood in stool.

• Anorectal Pressure Studies:

  • Evaluates the function of rectal and anal muscles.

Management of Constipation

• Aimed at addressing underlying causes:

  • Discontinue abusive laxative use.

  • Modify diet to increase fiber intake.

  • Establish a routine for regular bowel movements.

  • Incorporate physical exercise to strengthen abdominal muscles.

  • Consider increasing oral fluid intake and dietary adjustments (6-12 teaspoons of unprocessed bran, high-residue diet).

  • Use laxatives appropriately; avoid cathartics and enemas unless in cases of impaction.

Complications of Constipation

• Toxic Megacolon:

  • Severe dilation of the colon, risk of rupture.

• Fecal Impaction:

  • Severe blockage due to hardened stool.

• Megacolon:

  • Dilation and loss of muscle tone in the colon, requires intervention.

Diarrhea

• Definition:

  • Increased frequency of bowel movements (more than 3 times within 24 hours).

  • Typically includes changes in amount (>200g/day) and consistency (increased liquidity).

• Symptoms:

  • Associated with urgency, perianal discomfort, or incontinence.

Factors Determining Severity of Diarrhea

• Increased intestinal secretions

• Altered mucosal absorption

• Increased intestinal motility

Classifications of Diarrhea

• Acute/Large Volume:

  • Resulting from increased secretion of water and electrolytes.

• Small Volume Diarrhea:

  • Caused by increased peristaltic movements or inflammatory bowel disorders.

• Infectious Diarrhea:

  • Related to pathogens in food/water.

Severity Classifications of Diarrhea

• Mild: 1-3 unformed stools within 24 hours.

• Moderate: 3-6 unformed stools within 24 hours.

• Severe: More than 6 unformed stools with fever or blood.

Preventive Health Measures for Diarrhea

• Proper food storage and refrigeration.

• Ensure meat products are well cooked.

• Maintain hygiene in food preparation.

• Train food handlers in hygienic practices.

Clinical Manifestations in Acute Diarrhea

• Stool Appearance:

  • Grayish-brown, foul-smelling, with undigested particles.

• Symptoms include:

  • Abdominal cramps, distention.

  • Anorexia, thirst.

  • Painful straining during defecation.

Subtypes of Diarrhea

• Food Poisoning:

  • Rapid onset (hours post intake), resolves within 1-2 days.

• Dysentery:

  • Gradual onset, persists for days/weeks, with mucus and blood presence in stool.

Diagnostic Evaluation for Diarrhea

• Complete blood count (CBC).

• Chemical profiling.

• Urinalysis and routine stool examination.

• Barium Enema: for additional imaging.

Management of Diarrhea

• Focus on controlling and curing underlying causes:

  • Mild Cases:

    • Oral rehydration solutions or electrolyte solutions.

  • Moderate Cases:

    • Possible non-specific drugs: Diphenoxylate (Lomotil), Loperamide (Imodium).

    • Antimicrobials for infectious causes.

  • Severe Cases:

    • IV therapy for rapid hydration, particularly for vulnerable populations (children, elderly).

Nursing Diagnoses Related to Diarrhea

• Diarrhea related to bowel disorders.

• Risk for fluid volume deficit due to frequent, loose stools.

• Risk for impaired skin integrity and risk for infection transmission.

Nursing Interventions for Diarrhea

• Encourage bed rest, oral fluids, and a bland diet low in bulk.

• Monitor fluid balance and dehydration signs.

• Maintain perianal skin care to prevent irritation.

• Implement precautionary measures for infection control.

Acute Inflammatory Intestinal Disorders: Appendicitis

• Most common inflammation in right lower quadrant abdominal area.

• More prevalent in males, teenagers, and individuals aged 10-30.

Clinical Manifestations of Appendicitis

• Pain localized at McBurney’s point, often with muscle rigidity.

• Rovsing’s Sign: Induces pain in RLQ upon palpation of LLQ.

• Obturator Sign: Discomfort with internal movement of the hip.

• Psoas Sign: Pain when flexing the hip due to inflamed appendix.

• Symptoms may include rebound tenderness, fever, nausea, and vomiting.

Complications of Appendicitis

• Perforation and peritonitis due to inflammation.

Management of Appendicitis

• Surgical removal (appendectomy) is standard.

• Narcotic analgesics should only be administered post-surgery decision.

• Use of prophylactic antibiotics.

Peritonitis

• Inflammation of the peritoneum; can be primary (from internal organs) or secondary (external injuries).

• Symptoms include diffuse, sharp abdominal pain becoming localized.

Management of Peritonitis

• Fluid and electrolyte replacement.

• Intestinal suction and oxygen therapy.

• Surgical removal of infected tissue, if indicated.

Inflammatory Bowel Disease (IBD): Ulcerative Colitis

• Recurrent ulcerative disease affecting the colon and rectum.

• Etiology involves genetic, environmental, and autoimmune factors.

• Characterized by superficial mucosa inflammation and ulcerations.

Colitis Clinical Findings

• Symptoms include chronic diarrhea (often bloody), abdominal pain, tenesmus, and weight loss.

• Diagnostic evaluations include stool exams, colonoscopy, and imaging studies.

Management of IBD: Drug Treatments

• Methods to reduce inflammation and suppress immune response.

• Utilize a low-residue or high-protein diet, including corticosteroids and medications such as sulfasalazine.

• Surgical options exist when medication fails to alleviate symptoms.

Crohn's Disease

• Commonly presents between adolescence and young adulthood.

• Distinct areas of inflammation ('skip lesions') and transmural involvement.

Clinical Findings in Crohn's Disease

• Symptoms overlap with IBD but can include severe malnutrition due to impaired absorption. Diagnostic criteria similar to those in ulcerative colitis, with particular attention to nutrient deficiencies and complications like abscesses and fistulas.

Comparison: Crohn's Disease vs. Ulcerative Colitis

• Involvement: Crohn's may see discontinuous lesions; UC involves continuous areas.

• Surgery: Crohn's may require more surgeries, while UC can often be cured by total colectomy.