Pearson Elimination

Elimination: Overview

Definition: Elimination refers to the secretion and excretion of physiological waste products by both the kidneys and intestines.
Types of Elimination:
- Urinary Elimination: Involves solute waste from the blood and excess liquids not needed for homeostasis.
- Bowel Elimination: Involves the unused portions of solid ingested materials.

Urinary Elimination:
- Analyze the physiology of urinary elimination.
- Differentiate alterations in urinary elimination.
- Identify common assessment procedures for urinary elimination.
- Analyze independent nursing interventions for urinary elimination issues.
- Summarize collaborative therapies for urinary alterations.
- Consider lifespan factors affecting urinary elimination.
Bowel Elimination:
- Analyze the physiology of bowel elimination.
- Differentiate alterations in bowel elimination.
- Identify common assessment procedures for bowel elimination.
- Analyze nursing interventions for bowel elimination issues.
- Consider lifespan factors affecting bowel elimination.

Controls blood concentration and composition, ridding the body of excess fluid and electrolytes.
Normal urinary function is vital for:
- Neuronal and muscle function.
- Bone strength.
- Cellular regeneration.
- Maintaining homeostasis (e.g., blood pressure regulation).

Urination (micturition or voiding) involves:
- Collection of urine in the bladder, which stimulates stretch receptors that trigger the voiding reflex.
- Conscious control over the external urethral sphincter, allowing or delaying urination based on appropriateness of time and place.

Influenced by:
- Fluid and food intake.
- Muscle tone and psychosocial factors.
- Pathologic conditions and medications.

Altered Urine Production:
- Polyuria: Abnormally large urine output, leading to dehydration and extreme thirst.
- Anuria: Less than 100 mL of urine output per day.
- Oliguria: Scant urine production (less than 400 mL/day).
Altered Urine Elimination:
- Urgency, frequency, nocturia: Signs of potential urinary disorders.
- Dysuria: Painful or difficult urination.
- Neurogenic bladder: Lack of bladder fullness perception or sphincter control issues.

Normal Defecation: Expulsion of feces, influenced by diet, activity, and intestinal transit time.
Normal feces: 75% water, 25% solid material, require adequate fluid intake.

Affected by:
- Diet, fluid intake, activity levels, habits, medications, and psychological factors.

Diarrhea: Increased bowel movement frequency, often accompanied by cramps and risks of skin breakdown.
Constipation: Fewer than three bowel movements per week or difficulty passing stools.
Flatulence: Excessive gas due to various causes including diet and gastrointestinal action.

Urinary Function: Monitoring for voiding within the first 24-48 hours is critical; expect more frequent voids with specific urine colors.

Urinary and Bowel Changes: Renal function decreases; higher risks of urinary incontinence and constipation.
Decreased ability to concentrate urine leads to increased dehydration risk.

Increased urinary frequency due to the enlarging uterus, with potential glycosuria and risk for UTIs postpartum.

Maintain a healthy weight, regular exercise, and adequate fluid and fiber intake.
Promote good toileting habits, avoid delaying voiding and elimination, and treat constipation or diarrhea promptly.
Address modifiable risk factors such as obesity, smoking, and poor diet.

No standard screenings exist, but regular verbal assessments for abnormal symptoms are vital, especially amongst older adults.