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Monday, 29 August 2011

GENITOURINARY SYSTEM PEDATRICS


GENITOURINARY SYSTEM

•       Nephrons continue to develop after birth
•       GFR is 30% below adult level at birth
•        reaches normal level by age 2 years
•        tubular function immature at birth;  reach adult level
            by age 2 years
•        urethra shorter in children and more prone to ascending
            infection

UNDESCENDED TESTES (Cryptorchidism)
•        unilateral or bilateral absence of testes in scrotal sac
•        testes normally descend at 8 months of gestation
•        increased incidence in those  with genetic disorder
•        75% will descend spontaneously by age 1 year

Assessment:
•        unable to palpate testes in scrotal sac

Management:
•        if testes remains in abdomen, damage to testes is possible because of increased
•        chorionic gonadotropin
•        orchipexy:  surgical procedure to retrieve and secure testes placement; performed between ages 1-3 yrs

Nursing Management:
•        provide treatment options
•        support parents if surgery will be done
•        post op:  avoid disturbing the tension mechanism
•        avoid contamination of incision

HYPOSPADIAS
•        urethral opening located anywhere along the ventral surface of penis

Assessment:
•        urinary meatus misplaced
•        inability to make straight stream of urine

Management:
•        minimal defects – no intervention
•        neonatal circumcision delayed, tissue maybe needed for corrective repair
•        surgery at age 3-9 months

Nursing Intervention:
•        diaper normally
•        provide support for parents
•        post op: check pressure pressure dressing
•        monitor catheter drainage

PHIMOSIS
•        an abnormal narrowing of the foreskin so that it cannot  be retracted over the glans penis
•        may be present at birth or may develop as a result of poor hygiene with accumulation of smegma

Management:
•        Prevention – regular pulling the foreskin back and cleaning
•        circumcision

Nursing intervention:
•        circumcision care:
  1. Close observation for bleeding
  2. Ice application
  3. Administration of analgesics

ENURESIS
•        involuntary passage of urine after the age of control is expected (4 years)
•        types:
  1. Primary – in children who have never achieved control
  2. Secondary:  in children who have developed complete
            control
•      May occur anytime but most frequent at night
•      More common in boys
•      No organic cause

•      Etiologic possibilities:
  1. Sleep disturbances
  2. Delayed neurologic development
  3. Immature development of bladder
  4. Psychologic problems

Assessment:
•      PE normal
•      History of repeated voluntary urination management:
•        bladder retention exercises
•        drug therapy
  1. TCA – imipramine
  2. Anticholinergics

Nursing Intervention:
•        Provide information/counseling to family:
  1. Confirm that this not conscious behavior and that the     child is not purposely misbehaving
  1. Assure parents that they are not responsible and that this is a relatively common problem
•      Involve child in care; give praises and support with small accomplishments
  1. Age 5-6 years – can strip wet beddings
  2. Age 10-12 years – can do laundry and change bed
•      Avoid scolding and belittling the child

EXSTROPHY OF THE BLADDER
•        congenital malformation ; nonfusion of abdominal
            and anterior walls of the bladder during embryologic
            development
•        anterior surface of bladder lie open on abdominal wall

Assessment:
•        Associated structural changes
  1. Prolapsed rectum
  2. Inguinal hernia
  3. Widely split symphysis
  4. Rotated hips

•      Associated anomalies
  1. Epispadias
  2. Cleft scrotum or clitoris
  3. Undescended testes
  4. Chordee (downward deflection of the penis)

Management:
•        reconstructive surgery
•        urinary diversion
•        delayed until 3-6 months

Nursing intervention: Preop:
•        Provide bladder care; prevent infection
  1. Keep area as clean as possible
  2. Change diaper frequently; keep loose fitting
  3. Wash with mild soap and water
  4. Cover exposed bladder with vaseline gauze

Postop:
•       Design play activities to foster toddler’s need for autonomy
            -  child will be immobilized for extended period of time
•      Prevent trauma; as child gets older and more mobile,
            trauma is more likely

NEPHROTIC SYNDROME         
•        autoimmune process
•        structural alteration of glomerular membrane
•        results in increased permeabilityb to plasma proteins
•        course:  exacerbations and remissions over a period of months to years
•        commonly affects preschoolers; boys>girls

Assessment:
  1. Proteinuria
  2. Hypoproteinemia
  3. Hyperlipidemia
  4. Dependent edema
•      Puffiness around the eyes in morning
•      Ascites
•      Scrotal edema
•      Ankle edema
  1. anorexia, vomiting, diarrhea
  2. Pallor, lethargy
  3. Hepatomegaly

Management:
•        drug therapy
  1. Corticosteroids
  2. Antibiotics
  3. Thiazide diuretics

Nursing Intervention:
•      Provide bed rest
  1. Conserve energy
  2. Find activities for quiet play

•      Provide high protein, low sodium diet – during edema phase
•      Maintain skin integrity
•      Avoid IM injections – meds not absorbed in edematous tissues
•      Obtain morning urine for protein studies
•      Provide scrotal support
•      Monitor I and O, vital signs
•      Daily weight
•      Administer as ordered
•      Protect from sources of infection

ACUTE GLOMERULONEPHRITIS
•        immune complex disease
•        beta hemolytic strep
•        More frequently in boys; 6-7 years
•        resolves in 14 days
•        self limiting

Assessment:
  1. History of strep infection (URTI or impetigo)
  2. Edema, anorexia, lethargy
  3. Hematuria or dark colored urine
  4. Fever
  5. Hypertension
  6. Diagnostic tests:
•      Urinalysis – rbc,wbc,protein, cellular casts
•      Urine specific gravity increased
•      BUN, crea increased
•      ESR elevated
•      Hgb, Hct decreased

Management:
•        antibiotics
•        Antihypertensives
•        digitalis – if with CHF
•        fluid restriction
•        peritoneal dialysis – if severe renal complication occurs

Nursing Management:
1.  Monitor I and O, BP
  1. Weigh daily
  2. Provide diversional activity
  3. Provide client teaching and discharge planning
•      Medication administration
•      Prevention of infection
•      Signs of renal complications
•      Importance of long term follow up

WILM’S TUMOR (NEPHROBLASTOMA)
•         large, encapsulated tumor that develops in the renal parenchyma,
•         more frequently in left kidney
•         originates during fetal life
•         peak age : 1-3 years
Assessment:
•         non tender mass, usually midline near liver
•         hypertension
•         hematuria
•         test: IVP
Nursing intervention:
  1. Do not palpate abdomen – to avoid dissemination of CA cells
  2. Handle child carefully when bathing and giving care
  3. Provide care for the client with a nephrectomy
  4. Provide care for the child receiving chemotherapy

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