CDC Criteria for Symptomatic Urinary Tract Infection

 

Symptoms in patients > 12 months of age:

(1) fever (> 38°C)

(2) urgency

(3) frequency

(4) dysuria

(5) suprapubic tenderness

 

Symptoms in patients <= 12 months of age:

(1) fever (> 38°C)

(2) hypothermia (< 37°C)

(3) apnea

(4) bradycardia

(5) dysuria

(6) lethargy

(7) vomiting

 

Criteria 1 - all of the following:

(1) age > 12 months

(2) at least 1 symptom for age > 12 months

(3) urine culture with >= 100,000 colonies per mL with no more than 2 species of organisms

 

Criteria 2 - all of the following:

(1) age > 12 months

(2) at least 2 symptoms for age > 12 months

(3) at least one of the following

(3a) dipstick test positive for leukocyte esterase and/or nitrate

(3b) pyuria (either >= 10 WBC per mL, or >= 3 WBC per high powered field of unspun urine

(3c) organisms seen on Gram stain of unspun urine

(3d) two urine cultures with repeated isolations of the same uropathogen (gram negative bacteria; Staphylococcus saprophyticus) with >= 100 colonies per mL in nonvoided specimen

(3e) urine culture with <= 100,000 colonies per mL urine of single uropathogen in patient being treated with appropriate antimicrobial therapy

(3f) physician's diagnosis

(3g) physician institutes appropriate antimicrobial therapy

 

Criteria 3 - all of the following:

(1) age <= 12 months

(2) at least 1 symptom for age <= 12 months

(3) urine culture with >= 100,000 colonies per mL with no more than 2 species of organisms

 

Criteria 4 - all of the following:

(1) age <= 12 months

(2) at least 1 symptom for age <= 12 months

(3) at least one of the following:

(3a) dipstick test positive for leukocyte esterase and/or nitrate

(3b) pyuria (either >= 10 WBC per mL, or >= 3 WBC per high powered field of unspun urine

(3c) organisms seen on Gram stain of unspun urine

(3d) two urine cultures with repeated isolations of the same uropathogen (gram negative bacteria; Staphylococcus saprophyticus) with >= 100 colonies per mL in nonvoided specimen

(3e) urine culture with <= 100,000 colonies per mL urine of single uropathogen in patient being treated with appropriate antimicrobial therapy

(3f) physician's diagnosis

(3g) physician institutes appropriate antimicrobial therapy