OBJECTIVE We sought to determine factors associated with the absence of pyuria in symptomatic children whose urine culture was positive for a known uropathogen. METHODS We obtained data on children evaluated at the Children's Hospital of Pittsburgh emergency department between 2007 and 2013 with symptoms of urinary tract infection (UTI) who had paired urinalysis and urine cultures. We exclude...

BACKGROUND The 2011 American Academy of Pediatrics urinary tract infection (UTI) guideline suggests incorporation of a positive urinalysis (UA) into the definition of UTI. However, concerns linger over UA sensitivity in young infants. Infants with the same pathogenic organism in the blood and urine (bacteremic UTI) have true infections and represent a desirable population for examination of UA ...

The effects of colony-stimulating factors on differentiation of leukemic progenitor cells were investigated in various types of acute nonlymphocytic leukemia. Two different sources of colony-stimulating factors were used in this study: human placental conditioned medium; and phytohemagglutin-stimulated leukocyte-conditioned medium. At the end of culture, colony types were determined by dual est...

A 78-year-old male patient who had an indwelling urinary catheter because of benign hyperplasia of the prostate and who had been receiving hemodialysis twice a week due to endstage renal disease was admitted to our hospital complaining of three days of purple urine color (Figure 1). His medications included beta blocker, anti-aggregant, erythropoietin, piracetam and calcitriol therapies. A urin...