objective 6 Flashcards
what is the purpose of the renal system?
- Maintain fluid and electrolyte homeostasis
- Excrete urine
- Buffering system to control pH
what is the renal system critical to the production of?
- Synthesize vitamin D to active form (necessary for
maintaining blood calcium balance - Hormone that stimulates red blood cells (erythropoietin)
- Hormone that regulate blood pressure (renin)
- Activate growth hormone
- Secrete prostaglandins
absence of urine
anuria
an increase in the volume of urine
diuresis
painful urination
dysuria
involuntary nocturnal urination
enuresis
when the pt voids more frequently than what is usual for the pt
frequency
inflammation of the kidney
nephritis
blood in the urine
hematuria
difficulty initiating urination
hesitancy
the inability of control urination or defecation
incontinence
means the presence or formation of stones
lithiasis
excessive urination at night
nocturia
a decrease in the formation or passing of urine
oliguria
the passing of an abnormally large amount of urine
polyuria
the presence of an abnormally large amount of protein in the urine
proteinuria
the presence of an abnormal amount of white blood cells in the urine
pyuria
the inability of the pt to empty their bladder
urinary retention
an intense desire to urinate immediately
urgency
what are the factors that promote proper renal and urinary function?
- Adequate flow of blood to and from the kidney- good blood pressure,
sufficient volume (intake of fluids) - Functioning filtering system: nephrons, afferent (to) and efferent
(from) arterioles supply and flow - Patent ducts from kidney (ureter) and from bladder
- Intact bladder (no holes, tears)
- Proper nerve innovation and info relay (hormones)
- Functioning pelvic floor muscles ( and spincter function
- Proper pH
- A waste product that comes from the normal wear and tear on muscles of the body.
- Creatinine levels in the blood can vary depending on age, race and body size.
- Higher than normal levels may be an early sign that the kidneys are not working properly.
- As kidney disease progresses, the level of creatinine in the blood rises. 53–106 mcmol/L (men)
44–97 mcmol/L (women).
serum creatinine
- Comes from the breakdown of protein in the foods you eat.
- A normal BUN level is between 6–25, with 15.5 being the best value.
- As kidney function decreases, the BUN level rises.
- Common medications, including large doses of aspirin and some types of antibiotics, can also increase
your BUN
blood urea nitrogen
- measures of how well the kidneys are removing wastes and excess fluid from the blood.
- It is calculated from the serum creatinine level using age and gender with adjustment for those of
African American descent. - The normal value for GFR is 90 or above.
- A GFR below 60 is a sign that the kidneys are not working properly.
- Once the GFR decreases below 15, one is at high risk for needing treatment for kidney failure, such as
dialysis or a kidney transplant.
estimated glomerular filtration rate
A 24-hour urine test shows how much urine your kidneys produce
can give an more accurate measurement of how well your kidney are working and
how much protein leaks from the kidney into the urine in one day.
compares the creatinine in a 24-hour sample of urine to the creatinine level in
your blood to show how much waste products the kidneys are filtering out each
minute
creatinine clearance test
Includes microscopic examination of a urine sample as well as a dipstick test.
The dipstick is a chemically treated strip, which is dipped into a urine sample.
The strip changes color in the presence of abnormalities such as excess amounts
of protein, blood, pus, bacteria and sugar.
A urinalysis can help to detect a variety of kidney and urinary tract disorders,
including chronic kidney disease, diabetes, bladder infections and kidney stones.
urinalysis (R&M)
- Affect upper and lower urinary tract
- Inflammation of urinary tract, usually by bacterial infection (E. coli)
- Classified as: Complicated or uncomplicated; initial or recurrent;
unresolved or bacterial persistence
urinary tract infection
what are the lower UTI emptying symptoms?
weak urinary system
hesitancy
intermittency
postvoid dribbling
urinary retention or incomplete emptying dysuria
difficulty starting the urine stream resulting in a
delay between initiation of urination by relaxation of the urethral
sphincter and when urine stream actually begins
hesitancy
interruption of the urinary stream
intermittency
urine loss after completion of voiding
postvoid dribbling
inability to empty
urine from the bladder, which can be caused by atonic bladder or
obstruction of the urethra. Can be acute or chronic
urinary retention or incomplete emptying
difficulty voiding; pain on urination
dysuria
what are the lower UTI storage symptoms?
urinary frequency
urgency
incontinence
nocturia
nocturnal enuresis
what are the gerontologic considerations and UTIs?
- High incidence of chronic illness
- Frequent use of antimicrobials
- Presence of infected pressure ulcers
- Immunocompromised
- Cognitive impairment
- Immobility and incomplete emptying of bladder
- Use of bedpan rather than toilet
Inflammation of the urinary bladder
* Bacteria can invade the bladder from an infection in the
kidneys, lymphatics and urethra
* Causes include urologic invasive procedures, fecal
contamination, prostatitis or BPH, pregnancy & sexual
intercourse (honeymoon cystitis)
cystitis
what are the S&S of cystitis?
- Urgency
- Frequency
- Low back pain
- Dysuria
- Perineal and suprapubic pain
- Hematuria
- May experience fever and chills
- Urinalysis reveals increase in WBC and RBC
- C&S will identify organism
what is the medical management of cystitis?
- Antimicrobial therapy (e.g., Septra)
- Cranberry juice and vitamin C recommended to
keep bacteria from adhering to bladder wall
what is the nursing care for cystits?
- CNI
- Encourage extra fluids (at least 8 large glasses with at least one glass
of cranberry juice) excluding coffee, tea, alcohol, & colas- UT irritants - Emphasize the importance of finishing prescribed course of
medication - Instruct client on preventive measures
- Void at regular 2-3h intervals & after sexual intercourse
- Shower rather than tub bathe
- Clean perineum with front to back motion
- Wear cotton underwear
- Avoid irritating substances (e.g., bubble bath, vaginal sprays)
- Inflammation of the urethra
- More commonly seen in men than women
- If caused by organisms other than gonococci – non-gonococcal
urethritis - Gonorrhea attacks urethral mucous membranes
- Women: may accompany cystitis or result from a vaginal infection or
soaps, sanitary napkins or scented toilet tissue - Men: Chlamydia, trauma or instrumentation, rectal intercourse or
intercourse with a woman with vaginal infection - Discomfort during urination & frequency
- Fever not common
- In male may be due to spread of infection to the prostate or testes
urethritis