Potter & Perry: Chapter 47 Bowel Elimination

Introduction

-Regular elimination of bowel waste products is essential for normal body functioning.
-Alterations are early signs problems in the gastrointestinal tract or other body systems.
-Supportive nursing care respects a patient's privacy and emotional needs.

Factors influencing bowel elimination

age
diet
fluid intake
physical activity
psychological factors
personal habits
position during defecation
pain
pregnancy
surgery and anesthesia
medications
diagnostic tests

Common bowel elimination problems

constipation, impaction, diarrhea, incontinence, flatulence, hemorrhoids

A newly admitted patient states that he has recently had a change in medications and reports that stools are now dry and hard to pass. This type of bowel pattern is consistent with:

Constipation

Physical assessment

Mouth, Abdomen, Laboratory texts, Fecal specimens, Diagnostic examinations

Some diagnoses that apply to patients with elimination problems include:

Bowel Incontinence, Constipation, Risk for Constipation, Diarrhea, Lack of Knowledge of Dietary Regime

Goals and outcomes

Incorporate elimination habits or routines
-Reinforce routines that promote health
-Consider preexisting concerns

Cathartics and laxatives

Cathartics have a stronger and more rapid effect on the intestines than laxatives.
Suppositories may act more quickly than oral medications

Antidiarrheal agents

Opiates used with caution

To maintain normal elimination patterns in the hospitalized patient, you should instruct the patient to defecate 1 hour after meals because:

mass colonic peristalsis occurs at this time

Continuing and Restorative Care (1 of 2)

Care of ostomies, Irrigating a colostomy, Pouching ostomies, Nutritional considerations, Psychological Considerations

Continuing and Restorative Care (2 of 2)

Bowel training, Maintenance of proper fluid and food intake, Promotion of regular exercise, Management of the patient with fecal incontinence or diarrhea, Maintenance of skin integrity

Patient outcomes

Develop a therapeutic relationship. Evaluate a patient's level of knowledge. Determine the extent to which the patient accomplishes normal defecation.
Ask the patient to describe changes in diet, fluid intake, and activity to promote bowel health.

Safety Guidelines For Nursing Skills

-Instruct patients who self-administer enemas to use the side-lying position.
-If a patient has cardiac disease or is taking cardiac or hypertensive medication, obtain a pulse rate, because manipulation of rectal tissue stimulates the vagus nerve and some

Peristalsis

Involuntary waves of muscle contraction that keep food moving along in one direction through the digestive system.

Stomach preforms three tasks

storage of swallowed food and liquid mixing of food with digestive juices in a substance called chyme, and regulated emptying of its contents into small intestine

chyme

Partially digested, semiliquid food mixed with digestive enzymes and acids in the stomach.

Small intestine has three sections

duodenum, jejunum, ileum

duodenum and jejunum

absorb most of the nutrients and electrolytes

ileum

absorption of certain vitamins, irons, and bile salts

Functions of large intestine

absorption
secretion
elimination

Colon absorbs

1.5 L of water daily

ileus

loss of peristalsis with resulting obstruction of the intestines

Diarrhea is associated disorders affecting

digestion, absorption, secretion in GI tract

fecal impaction

the prolonged retention and buildup of feces in the rectum

fecal incontinence

the inability to control the passage of feces and gas through the anus

C. difficile

can cause mild diarrhea to severe colitis
hand sanitizer can't be used

flatulence

gas in the stomach or intestines

celiac disease

disease caused by sensitivity to gluten

hemorrhoids

swollen, twisted, varicose veins in the rectal region

stoma

opening

ileostomy

the surgical creation of an artificial excretory opening between the ileum, at the end of the small intestine, and the outside of the abdominal wall

colostomy

the surgical creation of an artificial excretory opening between the colon and the body surface

ileoanal pouch anastomosis

Pouch is a reservoir for wastes which are eliminated from the anus.

fecal occult blood test (FOBT)

clinical lab test for presence of small amounts of blood in feces; also called hemoccult test or stool guaiac test

Fecal immunochemical test (FIT)

Use antibodies to detect blood in the stool
detects human-globin protein-- specific for colonic blood loss
(Doesn't work for blood loss proximal to colon)