Diarrhea Nursing Diagnosis & Care Plan

Diarrhea on the floor is rarely just loose stool. It is fluid and electrolytes walking out the door, skin breaking down at the perineum, nutrition slipping, and (with the wrong organism) something you can hand to the next patient if you skip precautions. This plan covers the assessment, diagnoses, goals, and interventions that keep a diarrheal patient hydrated, intact, and contained.

What is Diarrhea?

Diarrhea is an increase in the frequency of bowel movements along with higher water content and volume. It comes from malabsorption, increased secretion of fluid by the intestinal mucosa, intestinal hypermotility, infection, inflammatory bowel disease, drug side effects, increased osmotic loads, or radiation.

Mild cases resolve in a few days. Severe diarrhea drives dehydration and nutritional collapse, with the predictable companions of fluid and electrolyte imbalance, impaired nutrition, and altered skin integrity. Treat some causes as transmissible and use the appropriate precautions.

Causes

Common causes and related factors:

• Anxiety, stress
• Alcohol abuse
• Chemotherapy, radiation
• Disagreeable dietary intake
• Enteric infections: viral, bacterial, or parasitic
• Gastrointestinal disorders
• Increased secretion
• Laxative abuse
• Malabsorption (e.g., lactase deficiency)
• Motor disorders: irritable bowel
• Mucosal inflammation: Crohn's disease or ulcerative colitis
• Short bowel syndrome
• Medication side effects
• Surgical procedures: bowel resection, gastrectomy
• Tube feedings

Signs and Symptoms

• Abdominal pain
• Cramping
• Frequency of stools (more than 3/day)
• Hyperactive bowel sounds (borborygmi)
• Loose or liquid stools
• Urgency

Nursing Diagnosis

Nursing diagnoses organize care but vary by setting; clinical judgment drives the plan. Examples tied to diarrhea:

• Diarrhea (usually stated without related factors)
• Fluid Volume Deficit related to excessive fluid loss as evidenced by decreased urine output, dry mucous membranes, and orthostatic hypotension.
• Imbalanced Nutrition: Less Than Body Requirements related to inadequate nutrient absorption as evidenced by unintentional weight loss and muscle wasting.
• Acute Pain related to abdominal cramping as evidenced by reports of sharp abdominal pain and guarding.
• Impaired Skin Integrity related to frequent loose stools as evidenced by redness and irritation around the perianal area.

Goals and Outcomes

• Within 8 hours, the patient verbalizes the causes of diarrhea and the rationale for treatment.
• Within 24 hours, the patient consumes at least 1,500 to 2,000 mL of clear liquids to maintain good skin turgor and normal weight.
• Within 24 hours, the patient re-establishes and maintains a normal bowel pattern.

Nursing Assessment and Rationales

1. Assess for abdominal discomfort, pain, cramping, frequency, urgency, loose or liquid stools, and hyperactive bowel sensations. Patients define diarrhea differently: loose consistency, increased frequency, urgency, or incontinence. Normal stool frequency runs from 3 times a week to 3 times a day. Acute diarrhea often brings gas, cramps, bloating, distention, flatulence, nausea, vomiting, and abdominal pain. Fast entry of chyme into the small or large intestine drives propulsive motor patterns and accelerated transit.

2. Evaluate the pattern of defecation. Normal is whatever is usual for that patient, anywhere from 3 times a day to 3 times a week. Knowing the baseline directs treatment.

3. Culture the stool. Stool studies distinguish infectious or parasitic organisms, bacterial toxins, blood, fat, electrolytes, and white blood cells, and identify the likely cause.

4. Determine tolerance to milk and dairy. Lactose intolerance is a classic trigger. Without enough lactase, lactose stays in the intestine, raises osmotic pressure, and pulls water into the lumen. The lactose breath hydrogen test measures malabsorption noninvasively.

5. Determine food intolerances. Trigger foods stimulate intestinal nerve fibers and peristalsis or raise osmotic pressure. Spicy, fatty, or high-carbohydrate foods, caffeine, sorbitol-containing sugar-free foods, and contaminated tube feedings all qualify. A food and symptom diary finds the pattern. Intolerance is not allergy; food allergy can also cause diarrhea alongside hives, itching, congestion, and throat tightening.

6. Determine food preparation methods. Undercooked food, bacterial contamination during prep, foods held at the wrong temperature, and contaminated tube feedings all cause diarrhea. Food-safety education works: one intervention cut diarrhea incidence in children by 52%.

7. Review current and recent medications. Thyroid hormone replacement, stool softeners, laxatives, prokinetics, antibiotics, chemotherapy, antiarrhythmics, antihypertensives, and magnesium-based antacids all cause diarrhea. Antibiotics cause hospital-acquired diarrhea in about 20% of patients on broad-spectrum agents.

8. Assess eating habits and behaviors. Changes in how a patient eats alter intestinal function. It takes less than 30 minutes for the stomach to signal fullness, so eating too quickly means overeating and more to digest. Gulping swallows air and traps wind. Big heavy meals and late-night eating both tax a digestive system that is least efficient at the end of the day.

9. Review osmolality of tube feedings. Hyperosmolar food or fluid draws fluid into the gut, stimulates peristalsis, and causes diarrhea. Formula composition, administration method, and bacterial contamination all contribute. Rule out every other cause before reducing or stopping the formula. Diabetes, malabsorption syndromes, infection, and concomitant drug therapy also drive diarrhea in tube-fed patients.

10. Assess stress levels. Some patients answer stress with GI hyperactivity. The fight-or-flight response releases hormones and signals the bowel to increase large-intestine motility, producing mild diarrhea.

11. Assess for fecal impaction. Liquid stool can seep past an impaction. The mass is too large to pass, but loose watery stool gets by, presenting as diarrhea or leakage.

12. Determine hydration status with intake and output. Diarrhea drives profound dehydration when fluid loss outpaces intake.

13. Assess moisture of mucous membranes. Dehydration dries them out. Watch for dry mouth and tongue, no tears when crying, listlessness or crankiness, sunken cheeks or eyes, sunken fontanel in infants, fever, and skin that does not rebound when pinched.

14. Assess skin turgor. Pinch the skin (back of the hand in adults, abdomen in children). Tenting and slow rebound signal dehydration.

15. Assess for other signs of dehydration. Thirst, decreased and dark urine, dry mouth and tongue, fatigue, sunken eyes or cheeks, lightheadedness or fainting. In children, add low energy, no wet diapers for 3 hours, irritability, and no tears when crying.

16. Assess history for GI disease. Gastroenteritis and Crohn's disease cause malabsorption and chronic diarrhea. Watery stools point to small-bowel disease; loose semisolid stools to large-bowel disease. Voluminous greasy stools indicate intestinal malabsorption. Blood, mucus, and pus indicate inflammatory enteritis or colitis. Oil droplets on the toilet water suggest pancreatic insufficiency. Nocturnal diarrhea can be diabetic neuropathy.

17. Assess history for abdominal radiation. Radiation sloughs the intestinal mucosa, cuts absorption, and causes exudative diarrhea through mucosal injury and epithelial loss.

18. Grade chemotherapy-related diarrhea with the Common Toxicity Criteria (CTC). CTC guidelines are used to grade and treat chemotherapy-related diarrhea.

19. Assess history of GI surgery. Diarrhea is normal 1 to 3 weeks after bowel resection. Gastric partitioning patients may have diarrhea on refeeding, a sign of dumping syndrome as an osmotic bolus draws fluid into the small intestine.

20. Assess foreign travel, unpasteurized dairy, or untreated water. Contaminated food and water cause intestinal infections. Travelers to developing countries and passengers on planes and cruise ships are at high risk. Most travelers' diarrhea (85%) is enterotoxigenic E. coli.

21. Determine stool type with the Bristol Stool Chart. Type 3 or 4 is ideal. Types 1 and 2 indicate constipation; types 5, 6, and 7 trend toward diarrhea.

• Type 1: Separate hard lumps, like nuts (hard to pass)
• Type 2: Sausage-shaped but lumpy
• Type 3: Like a sausage with surface cracks
• Type 4: Like a sausage or snake, smooth and soft
• Type 5: Soft blobs with clear-cut edges
• Type 6: Fluffy pieces with ragged edges, mushy
• Type 7: Watery, no solid pieces

22. Assess the perianal skin. Diarrheal stool is corrosive from increased enzyme content. Frequent loose acidic stools break down perianal skin, especially in young children.

23. Examine the emotional impact of illness, hospitalization, and soiling accidents. Loss of bowel control breeds embarrassment and lowered self-esteem. Patients who feel they cannot predict or manage episodes carry real fear of public incontinence, which dictates what they will and will not do socially.

Nursing Interventions and Rationales

1. Weigh daily and note decreased weight. Diarrhea drives severe water loss and weight loss. Daily weight is a key short-term indicator of fluid balance.

2. Have the patient keep a bowel diary. A self-care log directs treatment, especially for cancer-related diarrhea. Record time of day, stimulus, stool consistency and amount, food type and timing, fluid intake, bowel and laxative history, diet, exercise, relevant medical and surgical history, medications, perianal sensation changes, and the current bowel regimen.

3. Avoid medications that slow peristalsis when infection is present. With Clostridium difficile infection or food poisoning, do not slow peristalsis. Antimotility agents in C. diff have caused toxic megacolon, exacerbated colitis, and systemic infection. Increased motility helps clear the cause. Opioids, antidepressants, NSAIDs, and anticholinergics can all worsen toxic megacolon.

4. Give antidiarrheal drugs as ordered. Most suppress GI motility and allow more fluid absorption. Probiotics or yogurt may help by re-establishing normal flora. Opiates, the most common agents, decrease motility but have no antisecretory effect. Racecadotril, an enkephalinase inhibitor, blocks intestinal fluid secretion without affecting motility. Agents for severe secretory and inflammatory diarrhea carry more serious side effects.

5. Provide bulk fiber (cereal, grains, psyllium). Bulking agents and dietary fiber absorb fluid and thicken stool. One teaspoonful of psyllium twice daily is the usual dose. Its water-holding effect bulks watery stool and binds some toxins. Avoid combining psyllium products with laxatives. Psyllium husk has a gut-stimulatory effect mediated partly by muscarinic and 5-HT4 receptor activation, plus a gut-inhibitory activity mediated by blockade of Ca2+ channels and the NO-cyclic guanosine monophosphate pathway.

6. Provide natural bulking agents (rice, apples, matzos, cheese). Soluble fiber removes excess fluid and slows the digestive tract, easing diarrhea. Push soluble-fiber fruits and vegetables: apples, oranges, pears, strawberries, blueberries, peas, avocados, sweet potatoes, carrots, turnips. Insoluble fiber speeds transit and is for constipation, not diarrhea.

7. Avoid stimulants (caffeine, carbonated beverages, artificial sweeteners). Caffeine increases motility. High-fructose corn syrup in sodas causes fructose malabsorption with bloating, pain, heartburn, diarrhea, and gas. Artificial sweeteners pull water into the colon and act as laxatives. Carbonation adds belching, flatulence, and bloating that can trigger a flare.

8. Record number and consistency of stools per day; use a fecal incontinence collector for accurate output. Documentation sets a baseline and guides fluid replacement. A closed Fecal Collection System manages liquid or semi-liquid stool, diverts feces from burned or wounded areas, and reduces skin breakdown and cross-infection.

9. Watch for dehydration and shock. Check skin turgor over the sternum and look for longitudinal furrows of the tongue. Watch for excessive thirst, fever, dizziness, palpitations, severe cramping, bloody stools, hypotension, and shock. Severe diarrhea causes deficient fluid volume and can kill the very young, the chronically ill, and the elderly.

10. Encourage fluids 1.5 to 2 L/24 hr plus 200 mL for each loose stool in adults unless contraindicated; consider nutritional support. Increased fluid intake and liquid meal replacements replenish loss.

11. Encourage oral rehydration solution. Water alone is not enough. Diarrhea strips minerals and electrolytes that water cannot replace.

For adults: Use oral rehydration solutions, diluted juices, diluted sports drinks, clear broth, or decaffeinated tea. Sugary, carbonated, caffeinated, or alcoholic drinks worsen diarrhea.

For children:

• Continue breastfeeding on demand and offer oral rehydration solution (ORS) on schedule. If not breastfeeding, continue food and drink and give ORS.
• During the first 6 hours: 6 months and under, give 30 mL to 90 mL (1 oz to 3 oz) every hour. 6 to 24 months, 90 mL to 125 mL (3 oz to 4 oz) every hour. Over 2 years, 125 mL to 250 mL (4 oz to 8 oz) every hour.
• If the infant refuses ORS by cup or bottle, use a medicine dropper, small teaspoon, or frozen pops.
• If the child vomits, stop food and drink but keep giving ORS by spoon: 15 mL (1 tablespoon) every 10 to 15 minutes until vomiting stops, then resume regular amounts.
• For 6 to 24 hours (recovery): keep giving ORS until diarrhea is less frequent. When vomiting decreases, resume usual formula or whole milk and regular food in small frequent feedings. After 24 to 48 hours, most children resume a normal diet. Stools may increase at first; it may take 7 to 10 days or longer for stools to fully form.

12. Monitor intake and output; note oliguria and dark, concentrated urine; measure specific gravity if possible. Dark concentrated urine with high specific gravity signals deficient fluid volume. Record all intake and output in milliliters on the I/O chart. Measure, do not estimate. Enlist the patient in keeping the record when able.

13. Match bowel-prep protocols to age, weight, condition, disease, and other therapies. Older, frail, or already-depleted patients may need lighter prep or extra IV fluid during preparation.

14. Provide perianal care after each bowel movement. Diarrhea burns and inflames the perianal skin. Use a mild perineal cleanser, apply a protective ointment or barrier cream, and use a wound hydrogel on excoriated or desquamated skin.

15. Avoid rectal Foley catheters. Rectal tubes can safely prevent soiling in critically ill patients, but rectal Foley catheters cause rectal necrosis, sphincter damage, or rupture.

16. With cancer or cancer treatment, once infection is ruled out, give medications as ordered to stop the diarrhea. Cancer treatment raises infection risk, and the antibiotics that treat those infections also cause diarrhea. A cancer patient losing protein, electrolytes, and water can deteriorate fast toward fatal dehydration.

17. For enteral tube feeding:

• 17.1. Change feeding tube equipment per policy, at minimum every 24 hours. Contaminated equipment causes diarrhea.
• 17.2. Administer tube feeding at room temperature. Temperature extremes stimulate peristalsis.
• 17.3. Initiate tube feeding slowly. A slow infusion rate lets the GI system accommodate intake.
• 17.4. Decrease the rate or dilute the feeding if diarrhea persists. Rule out other causes first. Formula factors that drive diarrhea include caloric density, osmolality, nutrient density, residue content, and lactose.
  • Caloric density: commercial formulas range from 0.5 to 2.0 kcal/mL. As density rises, gastric motility and emptying slow.
  • Osmolality: commercial formulas range from 280 to 1100 mOsm/kg. Formulas of 400 to 1100 mOsm/kg are hypertonic and can be started at full strength. Watch hypertonic-formula patients for delayed gastric emptying, severe diarrhea, electrolyte depletion, and severe dehydration. Lowering the rate or osmolarity prevents hyperosmolar diarrhea.
  • Nutrient density: high-fat, low-carbohydrate formulas delay gastric emptying and risk reflux and aspiration.
  • Residue content: low- or no-residue formulas are usually hypertonic at 1 to 2 kcal/mL and contain soy or pectin fiber. Insoluble fiber like soy polysaccharides increases fecal weight, peristalsis, and transit speed.
  • Lactose: blenderized formulas contain lactose. In known lactase deficiency, give by continuous infusion, not intermittent or bolus, to reduce intolerance.

18. For chronic diarrhea with malnutrition, request a dietary consult and consider a hydrolyzed formula. A hydrolyzed formula has protein broken into small peptides or amino acids for patients who cannot digest standard formulas, maintaining nutrition while the GI tract heals.

19. Encourage small, frequent meals of easy-to-digest foods that tend to firm stool. Bland starchy foods are the starting point when returning to solids.

20. Do not let the patient stay on bland foods only. The BRAT diet (bananas, rice, applesauce, toast) is fine for the first day of stomach flu, but it lacks fat and protein, and prolonged use slows recovery. Return to a normal diet as tolerated.

21. Teach dietary measures to control diarrhea. Avoid spicy and fatty foods, alcohol, and caffeine. Broil, bake, or boil instead of frying. Avoid carbonated drinks and dairy. These changes slow colonic transit and reduce diarrhea.

22. Reinforce diet modification. Add potassium (potatoes, bananas, fruit juices) and salt (pretzels, soup), plus yogurt with active cultures. A little fat slows digestion and can reduce diarrhea.

23. Have the patient report diarrhea linked to prescription drugs. More than 700 medications cause diarrhea, including furosemide, caffeine, protease inhibitors, thyroid preparations, metformin, mycophenolate mofetil, sirolimus, cholinergic drugs, colchicine, theophylline, selective serotonin reuptake inhibitors, proton pump inhibitors, histamine-2 blockers, 5-ASA derivatives, ACE inhibitors, bisacodyl, senna, aloe, anthraquinones, and magnesium- or phosphorus-containing medications. Antibiotics cause hospital-acquired diarrhea in about 20% of patients on broad-spectrum agents. Report drug-triggered diarrhea early.

24. Teach proper use of antidiarrheal medications as ordered. Review correct use of each agent to prevent worsening the condition and further dehydration.

25. Stress fluid replacement during diarrheal episodes. Severely dehydrated patients get IV Ringer's lactate or saline, with added potassium and bicarbonate as needed. Oral rehydration solutions replace fluid and electrolyte losses through their sodium, sugar, and amino acid content, which drive nutrient-dependent sodium uptake. In alert patients with mild to moderate dehydration, oral rehydration matches IV hydration. After rehydration, give ORS at rates equal to stool loss plus insensible losses until diarrhea stops.

26. Stress good perianal hygiene. Hygiene cuts excoriation and promotes comfort. Neglected prolonged diarrhea with perianal excoriation and poor hygiene has progressed to Fournier's gangrene, a life-threatening necrotizing fasciitis of the perineum.

27. Teach the patient and family proper food preparation, food sanitation, and handwashing. This prevents fecal-oral transmission and outbreaks.

28. Provide stress-management tips. GI hyperactivity in response to stress produces mild diarrhea. Identify triggers, plan around them, and teach deep breathing, which signals the brain to calm and relax.

29. Encourage relaxation: free time to read, meditate, or listen to music. A slower musical tempo quiets the mind and relaxes the muscles.

30. Provide emotional support for unpredictable episodes. Diarrhea embarrasses the elderly and breeds social isolation and powerlessness. Steady support matters.