Urinary Tract Infection

Table of Contents

ALERTS

  • Urosepsis
  • Pyelonephritis
  • STI’s
  • Renal abnormality
  • Testicular Torsion
  • Inguinal Hernia
  • Infants < 2 months
  • Female > male incidence

AGE OR PREGNANCY CONSIDERATIONS

  • Infants < 1yr – Urosepsis risk
  • Adolescents – STI risk

DIFFERENTIAL DIAGNOSIS

  • Occult bacteremia in febrile infant without source
  • Non-specific vulvovaginitis
  • Urethritis
  • STI – Urethritis/Epididymitis
  • Constipation
  • Vaginal foreign body
  • Group A strep
  • Kawasaki’s disease
  • Appendicitis
  • Dysfunctional elimination

EVALUATION

HISTORY

  • Onset and timing of dysuria, presence of frequency and/or urgency, discharge, gross hematuria, associated symptoms (fever, abdominal pain, vomiting, back pain).
  • History of UTI
  • Irritability, poor feeding – Infants/young children
  • Sexual history – Adolescents

PHYSICAL EXAM

  • Abdomen
  • Genitalia
  • Back – CVA
  • Cardiovascular – HR, perfusion
  • Neuro – mental status, irritability

Diagnostic findings

  • Abdomen: suprapubic tenderness
  • Genitalia: urethral meatus erythema, foul odor, assess for discharge
  • Back: tenderness, assess CVA
  • Cardiovascular: tachycardia, assess perfusion
  • Neuro: assess mental status and irritability

Concerning Findings

  • Pyelonephritis: CVA tenderness, vomiting, fever, tachycardia
  • Urosepsis: Fever, tachycardia, decreased perfusion, irritability, altered mental status
  • STI (epididymitis/cervicitis): Urethral or vaginal discharge, scrotal pain/swelling, pelvic pain

DIAGNOSTIC TESTS & INTERPRETATION

Lab Tests

  • Urinalysis
  • Urine Culture
  • GC/Chlamydia
  • CBC
  • Blood Culture

Imaging/ Diagnostic Procedures

  • Renal Ultrasounds
  • VCUG

MANAGEMENT

TRANSFER/ADMISSION CONSIDERATIONS

  • Age < 2months
  • Urosepsis/Bacteremia
  • Immunocompromise
  • Dehydration
  • Testicular torsion

URINARY TRACT INFECTION

TREATMENT

First Line

  • Oral
  • Cefixime
  • Trimethoprim-Sulfamethoxazole
  • Augmentin
  • Ciprofloxacin if >15years
  • Parenteral
  • Third and fourth generation cephalosporins and aminoglycosides.
  • Indications for IV: sepsis, < 3-6 months, vomiting/unable to tolerate oral medications, known resistant pathogen

Second Line

  • Amoxicillin
  • Nitrofurantoin
  • Macrodantin

Supportive

  • Fever and/or pain relief
  • Push fluids

Complementary & Alternative Therapies

  • Cranberry juice
  • Sitz baths for pain with urination

FOLLOW UP

Outpatient Referral

  • PCP in 24-48 hours
  • Urology/nephrology
  • Age <2yr with first febrile UTI
  • Recurrent febrile UTI at any age
  • Family hx of renal or urologic disease

Written instructions should include:
Anticipatory Guidance

  • Importance of increased fluids
  • Importance of completion of abx
  • May take 48-72 hours for dysuria and fever to stop

Activity, Diet

  • Activity as tolerated
  • Increase fluids

Signs and Symptoms to return

  • Persistent fever or new onset of fever
  • Persistent urinary symptoms (dysuria, hematuria, frequency/urgency)
  • Vomiting, decreased urine output
  • Lethargy

PROGNOSIS, COMPLICATIONS

  • Typically responds well to antibiotics
  • Can progress to pyelonephritis
  • Can progress to urosepsis/bacteremia
  • Can result in renal scarring if recurrent

URETHRITIS

TREATMENT

Supportive

  • Pain relief
  • Push fluids

Complementary & Alternative Therapies

  • Cranberry juice
  • Sitz baths for pain with urination

FOLLOW UP

Outpatient Referral

  • PCP in 24-48 hours

Written instructions should include:
Anticipatory Guidance

  • Avoid bubble baths and soaps in water
  • Good hygiene

Activity, Diet

  • Activity as tolerated
  • Increase fluids

Signs and Symptoms to return

  • Persistent urinary symptoms (dysuria, hematuria, frequency/urgency)
  • Fever
  • Vomiting

PROGNOSIS, COMPLICATIONS

  • Typically self-resolves
  • Can be related to constipation
  • Can be related to behavioral issues and withholding

VULVOVAGINITIS

TREATMENT

Supportive

  • Sitz baths
  • Gentle cleansing
  • Cool compresses
  • Wet wipes

FOLLOW UP

Outpatient Referral

  • PCP

Written instructions should include:
Anticipatory Guidance

  • Loose fitting pants/cotton underwear
  • Avoid bubble baths
  • Soak in clean water and wash body immediately before getting out of bath
  • Proper hygiene after toileting

Activity, Diet

  • As tolerated

Signs and Symptoms to return

  • Persistent pain
  • Purulent discharge
  • Fever

PROGNOSIS, COMPLICATIONS

  • Typically self-resolves
  • Vulvar edema with longer duration
  • Vaginal polyps with chronic discharge

EPIDIDYMITIS

TREATMENT

First Line

  • If likely STI etiology
    • Ceftriaxone plus Doxyxycline (>age 8yrs)
  • If r/t UTI or more typical urinary pathogens
    • See above UTI Treatment Guidelines

Supportive

  • Scrotal support
  • Pain relief

FOLLOW UP

Outpatient Referral

  • PCP in 24-48 hours
  • Urology if bacterial etiology in pre-pubertal patient

Written instructions should include:
Anticipatory Guidance

  • Cool packs/Ice packs
  • Jock strap for scrotal support
  • NSAIDs for pain

Activity, Diet

  • Activity as tolerated
  • Increase fluids

Signs and Symptoms to return

  • Increased pain
  • Fever

PROGNOSIS, COMPLICATIONS

  • Typically self-resolves in pre-pubertal children with supportive care
  • Responds well to antibiotics if bacterial in origin
  • Often related to STI’s in pubertal patients

REFERENCES

Fleisher G, Ludwig S. (Eds.). Textbook of Pediatric Emergency Medicine. 6th ed. Philadelphia, PA: Lippincott, 2010.

Hay, W., Levin, M., Deterding, R., Abzug, M. (Eds.). Current Diagnosis & Treatment – Pediatrics. 22nd ed. New York: McGraw Hill, 2014.

Engorn, B. & Flerlage, J. (Eds.). (20th ed., 2015). The Harriet Lane Handbook. Philadelphia: Saunders.

Pais, P., Avner, E. Infectious Causes of Cystitis and Urethritis. In: Kliegman RM, Behrman RE, Schorr NF, Stanton BF, St. Geme, J. (Eds.). Nelson Textbook of Pediatrics. 19th ed. Philadelphia, PA: Saunders Elsevier, 2011.

SEE ALSO (TOPIC, ALGORITHM, ELECTRONIC MEDIA ELEMENT)

  • Sexually Transmitted Infections

CODES

ICD9

PUBLISHER WILL ENTER

Snomed

PUBLISHER WILL ENTER

  • Sexually Transmitted Infections

CME/REVIEW QUESTIONS

  1. What are the referral recommendations for pediatric UTI?
  2. Name 2 first line antibiotic agents in the treatment of pediatric UTI.
  3. Give one criteria for transfer or admission when treating pediatric UTI.