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Disorders of the Kidneys and Ureters

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Maintain bed rest when the blood pressure is elevated and edema is present ... can occur anywhere in the urinary tract from the kidney pelvis and beyond. ... – PowerPoint PPT presentation

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Title: Disorders of the Kidneys and Ureters


1
Disorders of the Kidneys and Ureters
  • Chapter 64

2
Overview pg 1124
  • The most common urologic disorders are infectious
    and inflammatory conditions.
  • Those that affect the kidneys are extremely
    dangerous because damage to the nephrons can
    result in permanent renal dysfunction.

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4
Pyelonephritis pg 1124
  • An acute or chronic bacterial infection of the
    kidney and the lining of the collecting system
    (kidney pelvis).
  • Acute phelonephritis presents with moderate to
    severe symptoms that usually last 1 to 2 weeks.
  • If the treatment of acute pyelonephritis is not
    successful and the infection recurs, it is termed
    chronic pyelonephritis.

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6
Patho
  • Bacteria ascend to the kidney and kidney pelvis
    by way of the bladder and urethra.
  • Normal fecal flora such as E. coli, is the most
    common bacteria that cause acute pyelonephritis.
  • E. Coli accounts for about 85 of infections.

7
Patho
  • In acute pyelonephritis, the inflammation causes
    the kidneys to grossly enlarge.
  • Chronic pyelonephritis occurs after recurrent
    episodes of acute pyelonephritis.
  • The kidneys develop irreversible degenerative
    changes and become small and atrophic.

8
Patho
  • If extensive numbers of nephrons are destroyed,
    renal failure develops.
  • Renal dysfunction may not occur for 20 or more
    years after the onset of the disease.
  • About 10 to 15 of clients with chronic
    pyelonephritis require dialysis.

9
Pyelonephritis S/S pg 1124
  • Flank pain or tenderness
  • Chills, fever, and malaise
  • Frequency and burning on urination if there is an
    accompanying cystitis (bladder inf)
  • Some with chronic are asymptomatic
  • Others have a low-grade fever and vague GI
    complaints.
  • Polyuria and nocturia develop when the tubules of
    the nephrons fail to reabsorb water efficiently.

10
Medical Management
  • Tx includes relieving the fever and pain and
    prescribing antimicrobial drugs such as Septra or
    Cipro for 14 days.
  • Antispasmodics and anticholinergics such as
    Ditropan Pro-Banthine relax smooth muscles of
    the ureters and bladder, promote comfort, and
    increase bladder capacity.
  • 4 weeks of drug therapy is prescribed

11
Nursing Management pg 1125
  • Obtain a complete medical, drug, allergy
    history.
  • V/S (? temp or BP)
  • Any s/s of fluid retention such as peripheral
    edema and SOB.
  • Collect a clean-catch urine specimen for
    urinalysis and urine culture.
  • Measure I O

12
Nursing Management
  • Provide a liberal fluid intake of approx. 2,000
    to 3,000 mL to flush the infectious
    microorganisms from the urinary tract.
  • LAB TEST BUN, creatinine, serum electrolytes,
    and urine culture

13
Family Teaching pg 1126 Box 64-1
  • Suggest consuming acid-forming foods such as
    meat, fish, poultry, eggs, grains, corn, lentils,
    cranberries, prune, plums, and their juices to
    prevent calcium and magnesium phosphate stone
    formation.
  • Recommend avoiding alcohol and caffeine products
    if bladder spasms are present or until a clinical
    response to therapy is verified.

14
Acute Glomerulonephritis pg 1126
  • The term nephritis describes a group of
    inflammatory but NONINFECTIOUS disease
    characterized by wide-spread kidney damage.
  • Glomerulonephritis is a type of nephritis that
    occurs most frequently in children and young
    adults however, it can affect individuals at any
    age.

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16
Patho
  • Symptoms of acute glomerulonephritis appear about
    1 to 2 weeks after a group A beta-hemolytic
    streptococci upper respiratory infection.
  • The relationship between the infection acute
    glomerulonephritis is not clear microorganisms
    are not present in the kidney when symptoms
    appear, but the glomeruli are acutely inflamed.

17
Acute Glomerulonephritis S/S
  • About 50 are symptom free.
  • Occasionally the onset is sudden with pronounced
    symptoms such as fever, nausea, malaise,
    headache, generalized edema, or periorbital
    edema, puffiness around the eyes.
  • In some instances, the disorder is discovered
    during a routine physical examination.

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19
Acute Glomerulonephritis S/S
  • More often, the client or family notices that the
    persons face is pale and puffy and that slight
    ankle edema occurs in the evening.
  • Many other vague symptoms.read on your own

20
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21
Diagnostic Findings
  • Gross or microscopic hematuria gives the urine a
    dark, smoky, or frankly bloody appearance.

22
Medical Management pg 1127
  • No specific treatment exists for acute
    glomerulonephritis and treatment is guided by the
    symptoms and their underlying abnormality.
  • Treatment may consist of bed rest, a
    sodium-restricted diet (if edema or HTN is
    present), and antimicrobial drugs to prevent a
    superimposed infection in the already inflamed
    kidney.

23
Medical Management
  • The client is not considered cured until the
    urine is free of protein and red blood cells for
    6 months.
  • Return to full activity usually is not permitted
    until the urine is free of protein for 1 month.

24
Nursing Management
  • Maintain bed rest when the blood pressure is
    elevated and edema is present
  • Collect daily urine specimens to assist with
    evaluating the clients response to TX.
  • Assess the BP q 4 hours or prn
  • Encourage adequate fluid intake and measure I
    O.
  • Encourage carbohydrate intake to prevent the
    catabolism of body protein stores (may be
    restricted in sodium and protein)

25
Chronic Glomerulonephritis pg 1127
  • A slowly progressive disease characterized by
    inflammation of the glomeruli that causes
    irreversible damage to the kidney nephrons.
  • Some live for years with only occasional
    symptomatic episodes or none at all, or the
    disease may be rapidly fatal unless renal failure
    is treated with dialysis.

26
Patho
  • The chronic inflammation leads to ever-increasing
    bands of scar tissue that replace nephrons, the
    vital functioning units of the kidney.
  • Decreased glomerular filtration can eventually
    lead to renal failure.
  • Chronic glomerulonephritis accounts for approx.
    40 of people on dialysis.

27
Chronic S/S
  • Some experience no symptoms of this disorder
    until renal damage is severe.
  • Generalized edema known as ANASARCA is a common
    finding.
  • Anasarca is due to the shift of fluid from the
    intravascular space to interstitial and
    intracellular fluid locations.
  • The fluid shift is due to depletion of serum
    proteins, albumin in particular, which is lost in
    the urine.

28
S/S
  • Clients remain markedly edematous for months or
    years.
  • The client may feel relatively well, but the
    kidney continues to excrete albumin.
  • The fluid burden and subsequent renal failure
    contribute to fatigue, headache, hypertension,
    dyspnea, and visual disturbances.

29
Diagnostic Findings
  • Azotemia, accumulation of nitrogen waste products
    in the blood, is evidenced by elevated BUN, serum
    creatinine, and uric acid levels.
  • The urine contains protein (albumin), sediment,
    cast (deposits of minerals that break loose from
    the walls of the tubules), and red and white
    blood cells.

30
Medical Management
  • Treatment is nonspecific and symptomatic
  • Management goals include (1) controlling HTN with
    medications and sodium restriction (2) correcting
    fluid and electrolyte imbalance, (3) reducing
    edema with diuretic therapy (4) preventing
    congestive heart failure (5) eliminating urinary
    tract infections with antimicrobials.
  • May necessitate dialysis or kidney transplantation

31
Nursing ManagementFluid Volume Excess
  • Weigh daily at the same time on the same scale
    while wearing similar clothing.
  • Measure I O
  • Monitor BP, HR, lung and heart sounds each shift
  • Assess for pitting edema, tight rings or shoes,
    clothes that do not fit comfortably
  • Educate on low sodium restriction
  • Administer prescribed diuretics

32
Nursing ManagementFatigue Activity Intolerance
  • Avoid clustering nursing tasks and physical
    activities
  • Provide periods of rest and promote uninterrupted
    sleep at night
  • Eliminate any activities of daily living that are
    not necessary.
  • Assist the client with activities when evidence
    of tachycardia or dyspnea is present.

33
Polycystic Disease pg 1129
  • A congenital kidney disorder that has a familial
    tendency.
  • 2 forms the infantile and adult forms
  • 1. The infantile form is rare. It may cause
    fetal death (before delivery), early neonatal
    death, or renal failure during childhood.
  • 2. The adult form has its onset between 30 to 50
    years of age and insidiously progresses to renal
    insufficiency.

34
Polycystic Disease
  • Once renal failure develops, polycystic disease
    is usually fatal within 4 years, unless the
    client receives dialysis treatment or organ
    transplant.

35
Patho
  • Adult polycystic kidney disease is the result of
    autosomal dominant inheritance.
  • This means that the gene for the disease is
    passed from an affected parent to his or her
    children.
  • Each child has a 5050 chance of acquiring the
    defective gene

36
Patho
  • As the name implies, this disorder is
    characterized by the formation of multiple
    bilateral kidney cysts. Fig 64-4 pg 1130.
  • The cysts interfere with kidney function and
    eventually lead to renal failure.
  • The fluid-filled cysts cause enormous enlargement
    of the kidneys from normal fist size to as much
    as the size of a football.

37
Patho
  • As the cysts enlarge, they compress the renal
    blood vessels and cause chronic hypertension.
  • Bleeding into cysts causes flank pain

38
Polycystic Disease S/S
  • Hypertension is present in approx 75 of affected
    individuals at the time of diagnosis.
  • Other symptoms, such as pain from retroperitoneal
    bleeding, lumbar discomfort, and abdominal
    tenderness, are due to the size and effects of
    the cysts.
  • Colic (acute spasmodic pain) is experienced when
    there is ureteral passage of clots or calculi.

39
Medical Management
  • Has no cure, but some interventions reduce the
    rate of progression.
  • HTN --- antihypertensive drugs, diuretic med and
    sodium restriction
  • UTIpromptly with antibiotics
  • Low RBC countiron supplements, injections of
    erythropoietin (Epogen) or blood transfusions

40
Medical Management
  • NEPHROTOXIC MEDICATIONS, SUCH AS NONSTEROIDAL
    ANTI-INFLAMMATORY DRUGS AND CEPHALOSPORIN
    ANTIBIOTICS, ARE AVOIDED AT ALL COSTS.
  • Dialysis substitutes for kidney function when
    renal failure occurs and while the client awaits
    an organ transplant

41
Nursing Management
  • Assess V/S especially BP
  • Observe the urine for signs of bleeding or
    infection
  • Measure I O
  • Report any decrease in or absence of urine
    output.

42
Obstructive Disorders pg 1130
  • KIDNEY AND URETRERAL STONES
  • A stone (calculus) is a precipitate of mineral
    salts that ordinarily remain dissolved in urine.
  • About 80 of renal calculi in the US are composed
    of calcium oxalate.
  • Stones may be smooth, jagged, or staghorn shaped
    fig 64-5 pg 1131

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44
Kidney Ureteral Stones Pg. 1130
  • Calculi can occur anywhere in the urinary tract
    from the kidney pelvis and beyond.
  • When a stone forms, the condition is called
    urolithiasis.
  • Nephrolithiasis refers to the presence of a
    kidney stone, the size of which may range form
    microscopic to several centimeters in diameter.
  • Ureterolithiaisis is a stone within the ureter.
    Ureteral stones are usually small some may be no
    larger than a grain of sand.

45
Patho
  • Predisposing factors
  • Calciuria, excessive calcium in the urine
    (hyperparathyroid dx, calcium-based antacids, and
    excessive intake of vitamin D)
  • Dehydration
  • Osteoporosis in which bone is demineralized
  • Obstructive disorders (enlarged prostate)
  • Immobility
  • UTI

46
Patho
  • Calculi traumatize the walls of the urinary tract
    and irritate the cellular lining, causing pain as
    violent contractions of the ureter develop to
    pass the stone along.
  • But the ureteral spasms may just as easily hold a
    stone in place.
  • If a stone totally or partially obstructs the
    passage of urine beyond its location, pressure
    increases in the area above the stone.

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48
S/S
  • Small stones may pass unnoticed
  • However, sudden, sharp, severe flank pain that
    travels to the suprapubic region and external
    genitalia is the classic symptom of urinary
    calculi.
  • The pain comes in waves that radiate to the
    inguinal ring, the inner aspect of the thigh, and
    to the testicle or tip of the penis in men , or
    the urinary meatus or labia in women.

49
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50
Medical Management 1132
  • Small calculi are passed naturally with no
    specific interventions.
  • If the stone is 5 mm or less in diameter, moving,
    the pain is tolerable, and no obstruction is
    present, the client is managed medically with
    vigorous hydration, analgesics, antimicrobial
    therapy, and drugs that dissolve calculi or
    eventually alter conditions that promote their
    formation (Table 64-1 pg 1132)

51
Medical Management
  • For larger stones, extracorporeal shock wave
    lithotripsy (ESWL), a procedure that uses 800 to
    2,400 shock waves aimed from outside the body
    toward dense stones may be used (fig 64-6) pg
    1133
  • The stones are shattered into smaller particles
    that are passed from the urinary tract

52
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53
Medical Management
  • ESWL is administered with the client in a water
    bath or surrounded by a soft cushion while under
    light anesthesia or sedation.
  • Stones can also be pulverized with laser
    lithotripsy.--- to do so, a fine wire, through
    which the laser beam passes, is inserted into the
    ureter by means of a cystoscope. Repeated bursts
    of the laser reduces the stone to a fine powder,
    which is then passed in the urine.

54
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55
Medical Management
  • Other stone removal procedures are performed with
    ureteroscopic approaches in which the endoscope
    is inserted from the urethra into the upper
    urinary tract under anesthesia to grasp, crush,
    and remove stones from the kidney pelvis or
    ureter.
  • Afterward, a catheter or ureteral stent, a
    slender supportive device, is left in place for 3
    days to splint the ureter or divert the urine
    past any possible tear in the ureteral wall (fig
    64-7) pg 1134

56
Medical Management
  • If the stone cannot be removed, a ureteral
    catheter is left in place for 24 hours to dilate
    the ureter in the hope that the stone will pass
    through it or that it will be pulled into the
    bladder when the catheter is removed.

57
Surgical Management
  • A nephrostomy tube, is a catheter that is
    inserted through the skin into the renal pelvis
    to manage any obstruction to urine flow above the
    bladder.
  • The tube is kept in place with a suture through
    he skin.
  • Unlike the bladder, the kidney pelvis can only
    hold APPROX. 5 TO 8 ML of urine.

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59
Surgical Management
  • If urinary drainage through the tube is impaired
    for even a short time from a blood clot or
    kinking or compression of the tubing,
    hydronephrosis and damage to surgically repaired
    tissue can result.
  • The client will complain of pain if the renal
    pelvis becomes distended with urine.

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62
REVIEW ON YOUR OWN
  • Nursing Guidelines 64-1 pg 1135 Managing a
    Nephrostomy Tube

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64
Ureteral Stricture pg 1136
  • A stricture is a narrowing of a lumen in this
    case the ureter is narrowed
  • The recurrent inflammation and infection cause
    scar tissue to accumulate within the ureter.
  • Other conditions that can interfere with urine
    passing through the ureter are congenital
    anomalies or conditions that mechanically
    compress the ureter such as pregnancy and tumors
    within the abdomen or upper urinary tract.

65
S/S
  • Flank pain or discomfort and tenderness at the
    costovertebral angle (CVA) due to enlargement of
    the renal pelvis often develop.
  • CVA where the last rib joins the vertebra

66
Medical Management pg 1137
  • The ureter can be stretched by inserting a
    dilator called a filiform or urethral sound, a
    curved metal rod, followed by others that are
    sequentially larger.
  • If the obstruction persists, the MD performs a
    ureteroplasty, removal of the narrowed section of
    ureter and reconnection of the patent portions.
  • A ureteral stent is placed in the ureter to
    provide support to the walls of the ureter,
    relive the obstruction, and maintain the flow of
    urine through the ureter and into the bladder.

67
Nursing Management
  • If a ureteral catheter is inserted
    preoperatively, measure the urine output from the
    catheter hourly.
  • Immediately report if there is no urine output
    from the ureteral catheter.
  • On return from surgery, all urinary drainage
    tubes and catheters are connected to a closed
    drainage system or to the type of drainage
    ordered by the physician.

68
Nursing Management
  • The main complication associated with ureteral
    surgery is failure of the ureter to transport
    urine from the kidney to the bladder.
  • Contact the MD if signs of shock appear, urinary
    output from the ureteral catheter is decreased or
    absent, or if the client complains of significant
    abdominal pain, which may indicate leakage of
    urine into the peritoneal cavity.

69
Nursing Management
  • Notify the MD if signs of a urinary tract
    infection develop, such as fever and chills or if
    the urine is cloudy or has a foul odor.

70
Tumors of the Kidney pg 1137
  • A hypernephroma (renal adenocarcinoma) is the
    most common malignant tumor of the kidney in
    adults.
  • Squamous cells tumors are second.
  • May be associated with carcinogenic effects of
    long-term cigarette smoking, environmental toxin
    (asbestos) or volatile solvents (gasoline)
  • Because the kidneys are deeply protected in the
    body, tumors can become quite large before
    causing symptoms.

71
S/S
  • The classic triad of renal cancer is PAINLESS
    hematuria, flank pain, and the presence of a
    palpable mass.
  • Additional symptoms include weight loss, malaise,
    and unexplained fever.
  • Later, there is colic-like discomfort during the
    passage of blood clots

72
Medical Management
  • Nephrectomy, including removal of the surrounding
    perinephric fat, is the treatment for a malignant
    renal tumor.
  • Surgery, chemotherapy, and radiation done
  • If extensive metastases are found, only
    palliative treatment is given.

73
Nursing Management pg 1138
  • Review care plan and family teaching on your own
    !!!!

74
Renal Failure pg 1139
  • The inability of the nephrons within the kidneys
    to maintain fluid, electrolyte, and acid-base
    balance, excrete nitrogen waste products, and
    perform regulatory functions such as maintaining
    calcification of bones and producing
    erythropoietin.

75
Renal Failure
  • There are two types of renal failure
  • 1. Acute renal failure (ARF) is characterized by
    sudden and rapid decrease in renal function. ARF
    is potentially reversible with early, aggressive
    treatment of its contributing etiology.
  • 2. Chronic renal failure (CRF) is characterized
    by progressive and irreversible damage to the
    nephrons. It may take months to years for CRF to
    develop.

76
Acute Renal Failure
  • Acute renal failure progresses through 4 phases
  • 1. Initiation phase
  • 2. Oliguric phase
  • 3. Diuretic phase
  • 4. Recovery phase

77
Acute Renal Failure
  • 1. Initiation Phase begins with the onset of
    the contributing event.
  • It is accompanied by a reduction in blood flow to
    the nephrons to the point at which there is acute
    tubular necrosis (ATN)
  • ATN refers to the death of cells within the
    collecting tubules of the nephrons where
    reabsorption of water, electrolytes, and
    excretion of protein wastes and excess metabolic
    substances occurs.

78
Acute Renal Failure
  • 2. Oliguric Phase associated with the
    excretion of less that adequate urinary volumes.
  • This phase begins within 48 hours after the
    initial cellular insult and may last for 10 to 14
    days or longer.
  • Fluid volume excess develops, which leads to
    edema, HTNlt and cardiopulmonary complications.

79
Acute Renal Failure
  • Azotemia, marked accumulation of urea and other
    nitrogenous wastes such as creatinine and uric
    acid in the blood, creates a potential for
    neurologic changes such as seizures, coma, and
    death.
  • Some clients excrete urinary volumes greater than
    500 mL/day. However, the urine has a very low
    specific gravity because it lacks normal amounts
    of excreted substances such as excess potassium
    and hydrogen ions, to maintain homeostasis.

80
Acute Renal Failure
  • Consequently, hyperkalemia, metabolic acidosis,
    and uremia, a toxic state caused by the
    accumulation of nitrogen wastes, develop
    regardless of the excreted water volume.

81
Acute Renal Failure
  • Diuretic Phase diuresis begins as the nephrons
    recover.
  • Despite an increase in the water content of
    urine, the excretion of wastes and electrolytes
    continues to be impaired.
  • The BUN, creatinine, potassium, and phosphate
    levels remain elevated in the blood.

82
Acute Renal Failure
  • Recovery Phase it may take one or more years of
    recovery while normal glomerular filtration and
    tubular function are restored.
  • Some clients recover completely others develop
    varying degrees of permanent renal dysfunction.

83
Chronic Renal Failure
  • In CRF, the kidneys are so extensively damaged
    that they do not adequately remove protein
    by-products and electrolytes from the blood and
    do not maintain acid-base balance.
  • End-stage renal disease (ESRD) is the term given
    for the point at which a regular course of
    dialysis or kidney transplantation is necessary
    to maintain life.

84
Chronic Renal Failure
  • Actual electrolyte imbalances include
    hyperkalemia, hyperphosphatemia, hypermagnesemia,
    and hypocalcemia.
  • The skin becomes the excretory organ for the
    substances the kidney usually clears from the
    body.
  • A precipitate, referred to as uremic frost, may
    form on the skin.

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87
Chronic Renal Failure
  • Assessment S/SIn both ARF CRF, the client
    has an elevated blood pressure and weight gain.
  • Urine output is generally decreased.
  • Facial features appear puffy due to fluid
    retention
  • The skin is pale ulceration and bleeding of the
    GI tract may occur.

88
Chronic Renal Failure
  • The oral mucous membranes bleed, and blood may be
    found in the feces.
  • Vague symptoms of lethargy, HA, anorexia, and dry
    mouth.
  • The clients breath and body may have an odor
    characteristic of urine.
  • Table 64-4 lists the systemic manifestations of
    CRF. Pg 1141

89
Medical Management pg 1141
  • Dialysis
  • Fluid and dietary restrictions that include
  • Low protein
  • High calories
  • Low sodium
  • Low potassium

90
Medical Management
  • Kayexalatean ion-exchange resin, is prescribed
    for oral or rectal administration to remove
    excess potassium when hyperkalemia occurs.
  • An IV infusion of glucose and insulin also
    facilitates movement of potassium within the
    cell.
  • Instead of blood transfusions to correct chronic
    anemia, Epogen is administered to stimulate bone
    marrow production of RBCs

91
Surgical Management Pg 1142
  • Some are candidates for a kidney transplant
  • One healthy kidney can perform the work of two
  • Any potential donor with a history of HTN,
    malignant disease, or DM is excluded form
    donation.
  • When a transplant is performed, the donor kidney
    is inserted through an abdominal incision and the
    nonfunctioning kidneys are left in place unless
    the client is extremely hypertensive.

92
Surgical Management
  • The blood vessels from the donor kidney are
    sutured to the iliac artery and vein and the
    ureter is implanted in the bladder. (fig 64-11 pg
    1142)

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94
Dialysis Pg. 1143
  • A procedure for cleaning and filtering the blood.
  • It provides a substitute for kidney function when
    the kidneys are unable to remove the nitrogenous
    waste products and maintain adequate fluid,
    electrolyte, and acid-base balance.

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96
Dialysis
  • During dialysis the clients blood is filtered by
    diffusion and osmosis.
  • Substances such as urea, creatinine,and
    dangerously high levels of potassium, and water
    move FROM the blood through the semipermeable
    membrane TO the dialysate, the solution used
    during dialysis that has a composition similar to
    normal human plasma.

97
Dialysis
  • Dialysis is performed by hemodialysis and
    peritoneal dialysis.
  • Either technique can be performed at home or in a
    dialysis center.
  • Each type of dialysis has advantages and
    disadvantages. Table 64-5 pg. 1148

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99
Arteriovenous Fistula
  • A surgical anastomosis (connection) of an artery
    and vein lying in close proximity. Fig 64-13 pg
    1149
  • The vessels usually joined are the cephalic vein
    and the radial artery or the cephalic vein and
    brachial artery.
  • They require from 1 to 4 months to mature before
    being used.

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101
Arteriovenous Fistula
  • At the time of dialysis, two venipunctures are
    performed at either end of the fistula
  • The distal venipuncture is used to remove blood
    that is transported to the machine.
  • The proximal needle puncture is used to return
    the dialyzed blood.
  • When dialysis is completed, the needles are
    removed and pressure dressings are applied for
    several hours.

102
Arteriovenous Fistula
  • Blood samples are taken before and after
    dialysis.
  • The clients predialysis and postdialysis weights
    are compared. Sometimes as much as 10 lb of
    fluid is removed.
  • BUN, creatinine, sodium, potassium, chlorides,
    and HCT are used as indicators of efficiency of
    dialysis.l

103
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104
Arteriovenous Graft
  • A type of vascular access method that uses a tube
    of synthetic material to connect a vein and
    artery in the upper or lower arm Fig 64-13 pg
    1149.
  • The graft pulsates with blood flow
  • AV grafts can be used 14 days after their
    insertion.
  • Although the graft reseals after each needle
    puncture, the expected life of the graft is 3 to
    5 years with repeated use.

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106
Nursing Management
  • Assess record vital signs before and after
    hemodialysis.
  • Weigh the client and obtain blood for labs
  • To prepare for vascular access
  • Palpate for a THRILL (vibration) over the
    vascular access. Listen for a BRUIT, a loud
    sound caused by turbulent blood flow. IF ABSENT,
    POSTPONE FURTHER USE AND REPORT FINDINGS.

107
Nursing Management
  • After dialysis is completed, do not administer
    injections for 2 to 4 hours.
  • This allows time for the metabolism and excretion
    of heparin, which is administered during
    dialysis, to reach safe levels.
  • Before discharging the client, observe for
    disequilibrium syndrome.

108
Nursing Management
  • Disequilibrium Syndrome a neurologic condition
    believed to be caused by cerebral edema.
  • The shift in cerebral fluid volume occurs when
    the concentrations of solutes within the blood
    are lowered rapidly during dialysis
  • Decreasing solute concentration lowers the plasma
    osmolality.
  • WATER THEN FLOODS THE BRAIN TISSUE!!!

109
Nursing Management
  • This syndrome is characterized by HA,
    disorientation, restlessness, blurred vision,
    confusion, and seizures.
  • The symptoms are self-limiting and disappear
    within several hours after dialysis as fluid and
    solute concentrations equalize.
  • The syndrome can be prevented by slowing the
    dialysis process to allow time for gradual
    equilibration of water.

110
Nursing Management
  • Client Teaching Avoid carrying heavy items in
    the arm with the fistula or graft
  • Do not sleep on the vascular access arm
  • Do not permit venipunctures, injections, or blood
    pressures in the arm with the vascular access.
  • Assess for a thrill or bruit daily!!
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