AH1 Exam 3 Urinary/Renal Flashcards
10^5 CFU/mL
clinically significant UTI, symptoms arise at 10^2-10^3
typically identified as the causative microorganism for UTI associated with broad spectrum antimicrobial antibiotic therapy or indwelling catheter
candida albicans
fever, chills, and flank pain
indicated UTI in upper urinary tract (involving renal parenchyma, pelvis, and ureters)-pyelonephritis
inflammation of renal parenchyma and collecting system
pyelonephritis
inflammation of the bladder wall
cystitis
inflammation of the urethra
urethritis
A UTI that has spread into the systemic circulation and is a life threatening condition requiring emergency treatment
Urosepsis
infections that occur in an otherwise normal urinary tract and usually only involve the bladder
uncomplicated UTI
infections with coexisting presence of obstruction, stones, or catheters, existing diabetes or neurologic disease, pregnancy induced changes, of a recurrent infection
complicated UTI
complications associated with a complicated UTI
pyelonephritis, urosepsis, and renal damage
term for a UTI due to original infection not being eradicated
unresolved bacteriuria or bacterial persistance
Lower ________ levels cause vaginal atrophy, a decrease in vaginal lactobacilli, and an increase in vaginal pH
estrogen
Giving women low dose intravaginal estrogen replacement acidifies the vagina and may be effective in treating recurrent UTI
dysuria, frequent urination (+than q2h), urgency, and suprapubic discomfort or pressure
Urine may have blood or sediment
LUT (lower Urinary Tract) infection
nonspecific symptoms of UTI
fatigue, anorexia
characteristic symptoms of UTI are often absent in which population?
older adults who instead experience non localized abdominal discomfort, cognitive impairment, or generalized clinical deterioration
diagnostic study that identifies presence of nitrates, WBCs, and leukocyte esterase in urine
dipstick urinalysis
an enzyme present in WBCs that indicates pyuria
leukocyte esterase
a voided midstream technique yielding a clean catch urine sample is preferred for obtaining which diagnostic test?
urine culture
what do you do with urine after collecting it?
refrigerate it immediately!! and it should be cultured w/in 24 hrs of collection
two tests used when obstruction of the urinary system is suspected of causing UTI
intravenous pyelogram (IVP)
Cytoscopy
Renal ultrasound is preferred urinary tract imaging technique if recurrent UTI, bc it is noninvasive, easy to perform, and relatively inexpensive
Uncomplicated UTI antibiotics
Bactrim, Septra (trimethoprim-sulfamethoxazole)
Nacrodantin, Macrobid (nitrofurantoin)
short-term 1-3 days
Antibiotics 7-14 days or longer
Bactrim or Macrobid
Ampicillin, amoxicillin, first gen cephalosporin, fluoroquinolone
consider 3-6 mons trial of suppressive or prophylactic antibiotic regimen
consider post coital antibiotic prophylaxis (Bactrim, Macrobid, or Cephalexin)
adequate fluid intake
Complicated UTI treatment
Nitrofurantoin (Macrodantin, Macrobid) patient teaching
avoid sunlight, notify HCP if fever, chills, cough, chest pain, dyspnea, rash or numbness or tingling of fingers or toes develops
debilitated persons, older adults, patients who are immune compromised due to co-morbid disease (CA, HIV, DM), and patients treated with immunosuppressive agents or corticosteriods
Are at increased risk of UTI
hyper/hypothermia, decreasing BP, rapid pulse and RR, warm flushed skin
report to HCP as these may indicate septic shock r/t urosepsis
benefits of increased fluid intake during UTI, pyelonephritis
fluids will increase frequency of urination at first, but will also dilute the urine, making the bladder less irritable. Fluids will help flush out bacteria before they colonize in the bladder.
Caffeine, alcohol, citrus juices, chocolate, and highly spiced foods or bevs
should be avoided during UTI as they are irritating to the bladder
nonpharmacological relief of UTI
heating pad, warm shower, sitz bath
commonly starts in renal medulla and spreads to renal cortex
pyelonephritis
mild fatigue, sudden onset of chills, fever, vomiting, malaise, flank pain, and the LUTs of cystitis (dysuria, urgency, frequency).
Costovertebral tenderness is usually present on the affected side
these manifestations usually subside within a few days (even without treatment) but bacteriuria and pyuria persist
Acute pyelonephritis
CBC shows leukocytosis and a shift to the left with an increase in immature neutrophils (bands)
acute pyelonephritis
kidneys have become small, atrophic, and shrunken and have lost fxn owing to scarring or fibrosis. Usually the outcome of recurrent infections of upper urinary tract
Chronic pyelonephrits (AKA interstitial nephritis, chronic atrophic pyelonephritis, or reflux nephropathy)
*if both kidneys are involved, often progresses to ESRD
how do you diagnose chronic pyelonephritis?
- radiologic imaging-indicate small, contracted kidney with thinned parenchyma; collecting system may be small or hydronephrotic
- histologic testing-
trichomona, monilial infection, chlamydial infection and gonorrhea
typical causes of urethritis
trimethoprim/sulfamethoxazole and nitrofurantoin
drugs for bacterial infections of urologic origin
Flagyl and Mycelex
treat Trichomonas
nystantin (Mycostatin), Diflucan
monilial infections
doxycycline (Vibramycin)
chlamydial infection
teach patients with sexually transmitted urethritis to refer their sexual partner(s) for evaluation and testing if they have had sexual contact in the last ____ days
60
the result f obstruction and subsequent rupture of the periurethral glands into the urethral lumen with epithelization over the opening of the resulting periurethral cavity
urethral diverticula (mostly occurs near Skene’s glands which are the largest and most distal glands along the urethra)
dysuria, post void dribbling, frequent urination, urgency, suprapubic discomfort or pressure, dyspareunia, and a feeling of incomplete bladder emptying; urinary incontinence is common; urine may contain gross hematuria and sediment (cloudy); an anterior vaginal wall mass may be noted on physical exam and the mass may be tender and expel purulent discharge through urethra when palpated.
urethral diverticula (1:4 women will have no symptoms) Voiding Cystourethrography (VCUG) UA, MRI to determine size of diverticulum
condition suspected whenever a pt experiences symptoms of a UTI but tests are neg for bacteria or pyuria
IC/PBS
Interstitial Cystitis/Painful Bladder Syndrome:
avoid acidic foods: citrus, aged cheese, nuts, vinegar, curries, hot peppers +tea, coffee, alcohol, soda
take calcium phosphorus supplements
bladder irritating foods and dietary recommendations (esp for IC/PBS)
Elavil and Aventyl are used to decrease burning pain and urinary frequency
Pentosan (Elmiron) is only oral agent approved for tx of IC-enhances protective effects of glycosaminoglycan layer of the bladder
drugs do not provide immediate relief!!** for that, give opioid analgesics!
instill Dimethylsulfoxide (DMSO) directly into bladder to desinsitize pain receptors in the bladder wall.
Heparin and hyaluronic acid may also be instilled in bladder
Instillations are often administered with Lidocaine
Bacille Calmette-Guerin is an attenuated form of Mycobacterium bovis, and is another common tx.
medication mgmt IC/PBS
affects both kidneys equally and is the third leading cause of renal failure in US
glomerulonephritis
SLE, systemic sclerosis (scleroderma), streptococcal infection
common causes of glomerulonephritis
accumulation of antigen, antibody, and complement in the glomeruli:
Anti-GBM antibodies
lumpy bumpy deposits in renal tissue
glomerulonephritis
hematuria and urinary excretion of RBCs, WBCs, and casts. Proteinuria, and elevated BUN/Cr
clinical manifestations of glomerulonephritis
develops 5-21 days after infection of the tonsils, pharynx, or skin (streptococcal sore throat, impetigo) (group A beta hemolytic strep)
Acute Poststreptococcal glomerulonephritis-due to complement clogging glomerulus
generalized body edema, hypertension, oliguria, hematuria with a smoky or rust appearance (indicative of bleeding in upper urinary tract), and proteinuria. Fluid retention (due to decreased glomerular filtration); abdominal or flank pain possible
Acute Poststreptococcal glomerulonephritis-
an immune response to streptococcus is usually demonstrated by assessment of
ASO titers (antistreptolysin-O) which will reflect a decrease in complement componenets of C3 and CH50
renal biospy
to confirm Acute Poststreptococcal glomerulonephritis-
erythrocyte casts are usually indicative of __________ if found in dipstick urinalysis
Acute Poststreptococcal glomerulonephritis-
rest (address proteinuria, hematuria), sodium and fluid restriction (to address edema), diuretics (to address edema), anti-HTN therapy, adjustment of dietary protein (if BUN is elevated-to decrease nitrogenous waste in urine)
tx for Acute Poststreptococcal glomerulonephritis-
a cytotoxic autoimmune disease characterized by the presence of circulating antibodies against glomerular and alveolar basement membrane
Good Pasture Syndrome-seen mostly in young male smokers
flulike symptoms with pulmonary symptoms of cough, milk SOB, hemoptysis, crackles, rhonchi, and pulmonary insufficiency. hematuria, weakness, pallor, anemia, and renal failure
clinical manifestations of Good Pasture’s Syndrome
corticosteroids, immunosuppressive drugs (Cytoxan, Imuran), plasmapheresis, and dialysis
tx for good pasture syndrome, rapidly progressive glomerulonephritis
HTN, edema, proteinuria, hematuria, and RBC casts
rapidly progressive glomerulonephritis
proteinuria, hematuria, and slow development of uremia
Chronic glomerulonephritis: protein and phosphate restrictions may slow disease progression
when the glomerulus is excessively permeable to plasma protein, causing proteinuria that leads to low plasma albumin and tissue edema
Nephrotic Syndrome
peripheral edema, massive proteinuria, HTN, hyperlipidemia, hypoalbuminemia, decreased serum albumin, decreased total serum protein, and elevated serum cholesterol; hypocalcemia, blunted calcemic response to parathyroid hormone, hyperparathyroidism, and osteomalacia
Nephrotic Syndrome
What causes hyperlipidemia?
the diminished plasma oncotic pressure from the decreasaed serum proteins (nephrotic syndrome) stimulates hepatic lipoprotein synthesis–>hyperlipidemia
nephrotic proteinuria (nephrotic syndrome) leads to
loss of clotting factors resulting a hypercoagulable state
serious complication of nephrotic syndrome
hypercoagulability with thromboembolism
ACEI’s, NSAIDS, low sodium, low protein
if severe, consider corticosteriods and cyclophosphamide
tx for nephrotic syndrome
Nursing interventions r/t edema
weight pt daily, monitor I&Os, measure abdominal girth or extremity size
risk for imbalanced nutrition: less than body requirements
nephrotic syndrome from excessive loss of protein in the urine. serve small, frequent meals in a pleasant setting
struvite
stones assoc with UTI (magnesium ammonium phosphate)
abnormalities that result in increased urine levels of calcium, oxaluric acid, uric acid, or citric acid
metabolic risk factors for the development of urinary tract calculi
large intake of dietary proteins that increases uric acid excretion
excessive amounts of tea or fruit juices that elevate urinary oxalate level
large intake of calcium and oxalate
dietary risk factors for the development of urinary tract calculi
abdominal or flank pain, hematuria, and renal colic
clinical manifestations of urinary stones
sardines, herring, mussels, liver, kidney, goose, venison, meat soups, sweetbreads
foods high in purine (avoid if uric acid stones)
milk, cheese, ice cream, yogurt, all beans except green beans, lentils, fish with fine bones (sardines, kippers, herring, salmon), dried fruits, nuts, ovaltine, chocolate, cocoa
food high in calcium (avoid if calcium stones)
drak roughage, spinach, rhubarb, asparagus, cabbage, tomatoes, beets, buts, celery, parsley, runner beans, chocolate, cocoa, instant coffee, ovaltine, worcestershire sauce, tea
food high in oxalate
all voided urine should be strained through gauze or urine strainer
pts with urinary stones
hypertension, hematuria, feeling of heaviness in the back, side or abdomen, chronic pain, bilateral, enlarged kidneys are palpable
polycystic kidney disease, a hereditary renal disease characterized by a cortex and medulla filled with large, thin walled cysts that enlarge and destroy surrounding tissue by compression.
which type of urinary incontinence is more common in men?
overflow incontinence
which types of urinary incontinence are more common in women?
stress and urge incontinence
urinary leakage and post void dribbling
overflow
normal PVR (post void residual)
50-75 mL
repeat measurement if you get a finding over 100mL
Abnormal PVR in older client
> 200mL obtaining on two separate occasions and will require HCP attention
urinary retention is caused by two different dysfunctions of the urinary system:
1) bladder outlet obstruction (enlarged prostate)
2) deficient detrusor (bladder) muscle contraction strength (caused by childbirth, DM, overdistention, chronic alcoholism, anticholinergics)
sudden increase in intrabdominal pressure causes involuntary passage of urine (coughing, laughing, sneezing, heavy lifting, exercising
Stress Incontinence
tx: Kegels, weight loss if obese, cessation of smoking, topical estrogen
condition occurs randomly when involuntary urination is preceded by urinary urgency. Overactive bladder, nocturnal frequency and incontinence are common
urge incontinence
Treat underlying cause
bladder retraining with urge suppression, decrease in dietary irritants, bowel regularity, and kegels
administer anticholinergics, CCBs, or Tofranil at bedtime
what causes urge incontinence?
uncontrolled contraction or overactivity of detrusor muscle (CNS d/os, CVA, alzheimers, brain tumor, parkinsons, interstitial cystitis)
condition occurs when the pressure of urine in overfull bladder overcomes sphincter control; bladder remains distended and is usually palpable
overflow incontinence
urinary catheterization to decompress bladder
implement Crede or Valsalva maneuver
alpha blockers Cardura, Flomax
bethanechol to enhance bladder contractions
what causes overflow incontinence?
bladder or urethral outlet obstruction or underactive detrusor muscle caused by myogenic or neurogenic causes (herniated disc, diabetic neuropathy) may occur after anesthesia and surgery neurogenic bladder (flaccid type)
condition occurs when no warning or stress precedes periodic involuntary urination.
Reflex Incontinence
Treat underlying cause
bladder decompression to prevent ureteral reflux and hydronephrosis
intermittent self cath
diazepam and baclofen to relax external sphincter
prophylactic antibiotic
What causes Reflux incontinence?
spinal cord lesion above S2 interferes with CNS inhibition resulting in detrusor hyperreflexia and interferes with pathways coordinating detrusor contraction and sphincter relaxation
loss of urine resulting from cognitive, functional or environmental factors
functional incontinence
modifications of environment or care plan that facilitate regular, easy access to toilet and promote patient safety
penile compression device
must be released hourly to void