BOWEL ELIMINATION

What is the GI tract ?

is the long pathway food travels through your body

What structures make up the GI tract?

• Upper GI tract

  • Mouth

  • Pharynx

  • Esophagus

  • Stomach

• Small intestine

• Large intestine

• Rectum

• Anus

What is the main job of the SMALL intestine?

• Digestion of food

• Absorption of nutrients

WHY?

• Food enters the small intestine after leaving the stomach.

• Most nutrients are absorbed here before the remaining material moves to the large intestine.

🧠 Question clue:
If the question asks where most digestion and nutrient absorption occurs → SMALL INTESTINE.

What is the main job of the LARGE intestine/colon?

• Absorb water, Form feces/stool, Expel feces from the body

WHY?

• By the time food reaches the colon, most nutrients have already been absorbed.

• The colon removes water from what remains.

• That turns the remaining material into formed stool.

🧠 Think:

Small intestine = NUTRIENTS
Large intestine = WATER + STOOL

What is peristalsis?

A:

• Involuntary, wave-like contractions of intestinal muscles

• Pushes contents forward through the GI tract

WHY does a nurse care?

• ↓ peristalsis → contents move slowly → constipation

• ↑ intestinal movement can contribute to diarrhea

• No peristalsis after surgery can indicate paralytic ileus

Is peristalsis voluntary

• ❌ No.

• It is involuntary

• Controlled by the nervous system.

Meaning:
You don't consciously tell your intestines, “Okay, move the poop now.”

What is defecation?

The process of eliminating feces/waste from the body.

What happens when feces enter the rectum?

1. Rectum stretches.

2. Stretch receptors activate.

3. Sigmoid colon and rectal muscles contract.

4. Internal anal sphincter relaxes.

5. Brain recognizes the urge to poop.

6. Person voluntarily bears down.

7. External sphincter relaxes.

8. Stool leaves.

🧠 SIMPLE:

Poop enters rectum → STRETCH → urge → sphincters relax → poop OUT.

What happens if a person repeatedly ignores the urge to defecate? (poop)

• The reflexive contractions temporarily decrease.

• The urge can disappear until another mass peristaltic movement occurs.

WHY should a nurse care?

• Habitually ignoring the urge can promote bowel dysfunction.

What is the Valsalva maneuver during defecation?

• Straining/bearing down

• Contracting abdominal muscles while holding the breath/maintaining a closed airway

• Increases pressure to expel stool

WHY should nurses recognize this?

• It's the pressure-producing action patients may use when having difficulty passing stool

What factors can affect bowel elimination?

• Age/development

• Normal habits

• Privacy

• Pregnancy

• Food

• Fluid

• Activity

• Lifestyle

• Stress/psychological factors

• Disease

• Medications

• Diagnostic tests

• Surgery/anesthesia

Why does fiber help prevent constipation?

• Fiber increases stool bulk.

• Bulky foods absorb fluid.

• Increased stool mass stretches the bowel wall.

• Stretching stimulates peristalsis and defecation.

🧠 Think:

FIBER → BULK → STRETCH → PERISTALSIS → 💩

This is more useful than simply memorizing “fiber makes you poop.”

Bowel elimination powerpoint

Why does adequate fluid help prevent constipation?

• Fluid helps keep stool soft.

Too little fluid →

• Slower peristalsis

• Dry stool

• Hard stool

• Difficult bowel movement

🧠 Nursing connection:
Constipated patient → think:

FIBER + FLUID + ACTIVITY

Why does exercise help bowel elimination?

• Physical activity stimulates peristalsis.

Therefore:

• Walking/moving → bowel movement encouraged

• Bedrest/inactivity → increased constipation risk

Why are bedbound patients at risk for constipation?

• low activity

• low stimulation of peristalsis

• Weaker abdominal muscles may make defecation harder.

ATI clue:

“Patient has been on bedrest for several days.”

Immediately think CONSTIPATION RISK.

How can stress affect bowel elimination?

• Stress affects GI motility.

• It can contribute to:

  • Diarrhea

  • Constipation

• Stress is also listed as an important risk factor for IBS.

Why is constipation common during pregnancy?

• Growing uterus crowds/displaces intestines.

• Increased progesterone slows intestinal motility.

Result:
➡ Food/stool moves slower
➡ More constipation

Why are pregnant patients at increased risk for hemorrhoids?

• Increased uterine pressure

• Increased blood volume during pregnancy

What is hemorrhoids?

swollen veins in or around the anus and lower rectum

in pregnant women the growing uterus puts pressure on veins near the rectum and pregnancy can cause constipation and make those veins swell.

What bowel changes are common in older adults?

• Constipation is often chronic.

• Rectal receptors have decreased response.

• Diarrhea/fecal incontinence can also occur.

How much fiber does the PowerPoint recommend daily?

25–30 grams/day

How much daily fluid does the PowerPoint say facilitates bowel elimination?

2,000–3,000 mL/day

What nursing interventions promote normal bowel movements?

• Privacy

• Upright/seated position

• Regular timing

• Adequate fluid

• Fruits

• Vegetables

• Whole grains/fiber

• Exercise

• ROM for bedbound patients

Why should a patient sit upright to have a bowel movement?

• Proper positioning facilitates defecation.

🧠 Nursing application:
If safe, getting a patient onto the toilet/commode is generally more natural for elimination than remaining flat in bed.

When are bowel movements commonly stimulated?

• After meals

Exam application:
If you're establishing a bowel routine, timing toileting around the patient's natural pattern can help.

What is the correct sequence for an abdominal assessment?

I → A → P → P

1. Inspection

2. Auscultation

3. Percussion

4. Palpation

WHY do we auscultate the abdomen before percussion/palpation?

• Because manipulating the abdomen can affect bowel activity/sounds.

• You want to hear bowel sounds before manipulating the abdomen.

🧠 Exam trap:
Abdomen = LISTEN before touching deeply.

What does the nurse assess during abdominal inspection?

• Contour (shape)- is the belly flat, gently rounded, or sunken

• Masses (lumps) -do you see any bumps or lumps? do not press on them during inspection

• Scars (healed lines or makes from past surgeries or injuries)

• Distention ( does the belly look unusually swollen or stretched like an overfilled balloon?)

EASY MEMORY: shape, lumps, scars or swelling

What does the nurse assess during auscultation?

• Bowel sounds in all quadrants

• Frequency

• Character

• Flatus

Bowel sounds may be described as:

• Hypoactive- quieter or less frequent sounds, the bowels are moving slowly

• Hyperactive- loud, frequent gurgles> the bowels are moving more than usual

• Absent - no sounds heard ( listen for 5 full minutes)

• Infrequent - gurgles less often than usual

What medication class is strongly associated with constipation?

OPIOIDS = CONSTIPATION

WHY?

opioid use with slowed bowel elimination.

Question clue:

“Patient taking morphine reports no bowel movement.”

Think → opioid-associated constipation.

What can iron supplements do to stool?

• Turn stool black

Nursing thinking:
Black stool doesn't automatically mean bleeding if the patient is taking iron.

What can Pepto-Bismol do to stool?

• Turn stool black

Again: check medications before assuming black stool = bleeding.

How can aspirin and anticoagulants affect stool color?

black, sticky tar like stool can mean bleeding higher up in the digestive tract

bright red or maroon stool can mean bleeding lower down

What common bowel side effect is associated with Augmentin and metformin?

Diarrhea

Why should diarrhea in a patient taking broad-spectrum antibiotics get your attention?

• Broad-spectrum antibiotics such as clindamycin can be associated with C. difficile.

🧠 Application:
Antibiotics + significant diarrhea = don't automatically think, “Give Imodium.”

The cause matters.

Bowel elimination powerpoint

What foods can contribute to constipation

• Cheese

• Lean meat

• Eggs

• Pasta

What foods have a laxative effect?

• Fruits

• Vegetables

• Bran

• Chocolate

• Alcohol

• Coffee

What foods commonly produce gas?

• Onions

• Cabbage

• Beans

• Cauliflower

An older adult is constipated. Which is the better choice: cheese, fruit, cabbage, or eggs?

✅ Fruit

WHY?

• Fruit has a laxative effect.

• Cheese and eggs are constipating.

• Cabbage can produce gas.

What is constipation?

• Decreased bowel movement frequency

• Dry/hard stool

• Stool is difficult to pass

Who is at high risk for constipation?

• Bedrest patients

• Patients taking constipating medications

• Low fluid intake

• Low fiber/bulk intake

• Depression

• CNS disease

• Painful lesions affecting defecation

What should the nurse FIRST encourage for uncomplicated constipation?

• ↑ Fiber

• ↑ Fluids

• ↑ Activity

• Privacy

• Proper toileting position

• Uninterrupted toileting time

Then: laxatives when lifestyle measures are ineffective.

WHY?

• Don't automatically jump to medication when normal bowel function can be promoted naturally.

Diarrhea - how many stools should you do an day?

more than 3 loose stools

What is the BIGGEST nursing concern with prolonged diarrhea?

DEHYDRATION / FLUID IMBALANCE

WHY?

• Repeated watery stools = fluid loss.

What assessment findings may occur from dehydration with prolonged diarrhea?

• Tachycardia (faster than normal heart rate)

• Hypotension (low blood pressure)

• Increased temperature

• Poor skin turgor

• Weak peripheral pulses

🧠 Connect it:

Diarrhea → fluid loss → ↓ circulating volume → BP drops → heart rate rises.

That's the WHY behind the vital signs.

Why is skin care important for a patient with diarrhea?

• Frequent stool exposes perineal skin to:

  • Moisture

  • Irritation

  • Stool enzymes

➡ Increased risk for skin breakdown.

What should the nurse monitor in a patient with diarrhea?

• Amount/frequency of stool

• Fluid balance

• Signs of dehydration

• Perineal skin integrity

What diet is listed for diarrhea

• Clear liquids

• BRAT:

  • Banana

  • Rice

  • Applesauce

  • Toast

Are antidiarrheal medications automatically appropriate for acute diarrhea?

❌ No.

antidiarrheals such as:

• Imodium

• Lomotil

are not recommended for acute diarrhea.

Nursing thinking:
Determine what's causing the diarrhea rather than automatically stopping it.

What is fecal impaction?

• Dry, hard stool becomes lodged in the rectum

• Patient cannot pass it.

What is a MAJOR trick sign of fecal impaction?

LIQUID STOOL / APPARENT DIARRHEA

WHY?

• Liquid stool can seep around the hard impacted stool.

🚨 ATI trap:

Constipated patient suddenly starts passing small amounts of watery stool.

Do NOT immediately assume ordinary diarrhea.

👉 Think FECAL IMPACTION.

What findings can occur with fecal impaction?

• Constipation

• Rectal pressure/discomfort

• Abdominal distention

• Decreased appetite

• Liquid stool leaking around impaction

How can fecal impaction be treated?

Depending on orders:

• Suppository

• Enema

• Manual/digital disimpaction

An oil-retention enema may be given before manual removal.

WHY might an oil-retention enema be used before digital disimpaction?

• Softens hardened stool

• Lubricates

• Decreases discomfort during removal

What is an ostomy?

Surgically created opening from an internal organ to the outside of the body.

What is a stoma?

• The portion/opening of the intestine brought through the abdominal wall.

What is the difference between a colostomy and ileostomy?

Colostomy

• Stoma comes from COLON

Ileostomy

• Stoma comes from SMALL INTESTINE

Memory trick:

COLOstomy = COLON

What color should a healthy stoma be?

DARK PINK TO RED ❤

What might a PALE stoma indicate

Anemia ( the stoma isn’t getting enough blood like poor circulation)

Why is peristomal skin care VERY important?

• Effluent contains enzymes.

• Those enzymes can irritate/damage surrounding skin.

Assess for:

• Redness

• Tenderness

• Breakdown

• Drainage

What should the nurse assess in a patient with an ostomy?

• Stoma appearance

• Surrounding skin

• Amount of output

• Type of output

• Fluid I&O

• Odor

• Patient's ability to perform care

• Psychosocial response/body image

Why should the nurse encourage the patient to look at and participate in ostomy care?

• Promotes independence/self-care

• Helps the patient adjust to body-image changes

• Prepares them for home management

Nursing approach:

• Be professional.

• Show acceptance.

• Don't act disgusted or uncomfortable.

What does a fecal occult blood/guaiac test detect?

• Hidden blood in stool

Occult = hidden

guaiac (is the chemical it changes the color if blood is detected)

What color indicates a positive occult blood test

blue

What should the patient do BEFORE collecting a stool specimen?

👉 Urinate first.

WHY?

• Prevents urine from contaminating the stool sample.

Should toilet paper go into a stool specimen?

❌ No.

Also avoid contamination with:

• Urine

• Toilet water

• Soap

• Detergents

• Disinfectants

WHY?

• Contamination can affect test results.

How many stool specimens does this PowerPoint instruct for occult blood testing?

3 specimens from 3 different bowel movements

What does an enema do?

• Introduces solution into the rectum to:

  • Soften feces

  • Distend the colon

  • Stimulate peristalsis

  • Promote evacuation

What does a cleansing enema do?

• Removes feces from the colon.

May be used for:

• Severe constipation

• Impaction

• Colonoscopy preparation

• Bowel training

• Certain surgeries

Which cleansing enema solution is the safest?

👉 Normal saline

What does an oil-retention enema do?

• Lubricates

• Softens hard stool

• Makes defecation easier

Think:
🛢 OIL = HARD POOP

What does a carminative enema do?

• Helps expel FLATUS/GAS

• Relieves distention/bloating

Memory:
Carminative = GAS

What does a medicated enema do?

• Delivers medication through the rectal mucosa.

Which enema treats intestinal parasites?

👉 Anthelmintic enema

Parasites = ANTHELMINTIC

What is a return-flow/Harris flush used for?

• Expel flatus

• Relieve abdominal distention

What position should a patient be placed in for an enema?

LEFT SIDE / LEFT SIMS'

• Left side

• Right leg flexed forward

WHY

• Because of the anatomical characteristics of the colon.

• It facilitates flow of solution into the colon.

Exam clue:
Enema + position = LEFT SIDE.

Should enema solution be cold, hot, or warm?

👉 WARM

WHY?

• ❄ Cold → abdominal cramping

• 🔥 Hot → can injure intestinal mucosa

• 🌡 Warm → safer/more comfortable

The patient starts cramping during an enema. What should the nurse do?

• Clamp the tube for about 30 seconds

• OR lower the enema fluid container.

WHY?

• Slows/stops flow temporarily.

• Helps decrease intestinal spasms/cramping.

🚨 ATI thinking:
Don't just tell the patient “cramping is normal.”
Modify the procedure to relieve the discomfort.

How far does to insert an enema tube?

• Child → 2 inches

• Adult → 3–4 inches

What is the maximum recommended height for the enema fluid container?

18 inches / 46 cm

What is bowel retraining?

• Establishing a regular bowel routine.

• Patient attempts to use the bathroom at approximately the same time each day.

Used for:

• Chronic constipation

• Frequent bowel incontinence

What interventions help establish a bowel-training program?

• Plan WITH the patient

• Gradually increase fiber

• Increase fluids

• Establish designated toileting time

• Provide privacy

• Stool softener if prescribed

• Adjust plan based on results

WHY involve the patient?

• A routine only works if it's realistic and sustainable for that patient.

Bowel elimination powerpoint

What does an EGD examine?

• Esophagus

• Stomach

• Upper duodenum

EGD = UPPER GI

What does a colonoscopy examine?

• Rectum

• Colon

• Bowel using a lighted scope

What does a sigmoidoscopy examine?

• Distal sigmoid colon

• Rectum

• Anal canal

What does wireless capsule endoscopy involve?

• Patient swallows a capsule containing a small camera.

• Provides images of the small intestine.

What does an upper GI/small bowel series use?

• Fluoroscopy

• Barium contrast

Used to show structures of:

• Esophagus

• Stomach

• Small intestine

what is the order for scheduling GI diagnostic tests?

1. Fecal occult blood

2. Barium studies

3. Endoscopic examinations

WHY?

• Noninvasive procedures take precedence over invasive procedures.

Bowel elimination powerpoint

What is a paralytic ileus?

• Cessation/stopping of bowel peristalsis

It can occur after:

• Abdominal surgery

• Pelvic surgery

• Manipulation of the bowel

Why does paralytic ileus cause abdominal distention and discomfort?

• Peristalsis stops.

• BUT the bowel continues producing secretions.

• Without peristalsis, those secretions remain stagnant.

➡ Accumulation → distention + discomfort

Why might a patient after bowel surgery have an NG tube?

• Removes GI secretions

• Decompresses/drains the stomach

• Allows GI tract to rest

• Helps while waiting for peristalsis to return

Bowel elimination powerpoint