Urinary and Bowel Elimination Flashcards
The Urinary System
Kidneys
Ureters
Bladder
Urethra.
. Nephron
The working unit of the kidney
Each kidney contains approximately one million Nephrons
Separate nutrients and minerals from toxins and waste products in the blood
Kidneys
Two bean shaped organs
Act as a filtration system for the blood
. Ureters
Pair of narrow tubes (25 – 30cm long) that transport urine from each kidney to the bladder
Bladder
hollow, muscular sac that stores urine until voided
Urethra
Tube from the bladder to the outside of the body
used to pass urine
Normal Urinary Elimination
approximately 1500 ml of urine daily
Urinary Tract Infections (UTI)
An infection of the kidney, ureter, bladder, or urethra
More common in females
Cystitis
Inflammation of the bladder
Pyelonephritis
Inflammation of the pelvis or kidney
more common in females
Renal Calculi
kidney stones
Renal Failure
Occurs when the kidneys do not function or are severely impaired
Waste products are not removed from the blood
Acute renal failure
Occurs suddenly after severely decreased blood flow to the kidneys
Bood flow impairment caused by severe bleeding, MI, congestive heart failure, burns, infections or severe allergic reactions
Acute renal failure (Stages)
1) Oliguria Phase: < 400ml urine Q24H occurs and lasts up to 2 weeks
2) Diuresis Phase: When 1000 to 5000ml urine produced daily
3) Recovery Phase: Kidney function returns to normal for 1mo – 1yr
Some people do not recover and develop chronic renal failure
Chronic renal failure
Kidneys cannot meet the body’s demand
No cure
Nephrons are destroyed over many years