Pediatric blood culture: time to positivity

The aim of this study was to determine how long it takes blood culture to become positive using a blood culture system that can be monitored continuously in pediatric patients. Data were collected prospectively on 1,000 positive blood culture results from a tertiary pediatric university hospi...

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Main Authors: Ateş Kara, Güler Kanra, A Bülent Cengiz, Menekşe Apiş, Deniz Gür
Format: Article
Language:English
Published: Hacettepe University Institute of Child Health 2004-07-01
Series:The Turkish Journal of Pediatrics
Online Access:https://turkjpediatr.org/article/view/2811
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author Ateş Kara
Güler Kanra
A Bülent Cengiz
Menekşe Apiş
Deniz Gür
author_facet Ateş Kara
Güler Kanra
A Bülent Cengiz
Menekşe Apiş
Deniz Gür
author_sort Ateş Kara
collection DOAJ
description The aim of this study was to determine how long it takes blood culture to become positive using a blood culture system that can be monitored continuously in pediatric patients. Data were collected prospectively on 1,000 positive blood culture results from a tertiary pediatric university hospital from April 2000 to May 2002. The laboratory used the BACTEC 9120 fluorescent blood culture system. Patient's age ranged from less than a day to 20 years of age (mean 3 years). Five hundred and four cultures (50.4%) out of 1,000 yielded coagulase negative staphylococcus (CNS), 81 (8.1%) S. aureus, 53 (5.3%). Pseudomonas and 50 (5.0%) Klebsiella species. Of the 504 coagulase negative staphylococcal blood culture isolates, 314 (62.3% of CNS) were regarded as skin contaminants. Of the 1,000 cultures, 9.6% were reported as positive in the first day, 27.8% in the second day, 54.7% in the third day, 77.0% in the fourth and 89.4% in the fifth day. There was no association between previous antibiotic usage and the period required for isolate recovery. The clinician can expect to get results of positive blood cultures with susceptibility data, at a rate of 77.1% by day four and almost 90% by day five of sampling in the bacteriemic patient. Blood cultures yielding coagulase negative staphylococci in the first three days almost always show bacteremia with those microorganisms.
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2791-6421
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publishDate 2004-07-01
publisher Hacettepe University Institute of Child Health
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series The Turkish Journal of Pediatrics
spelling doaj-art-596f39d386254cd699b788f04524a7102025-08-20T02:01:57ZengHacettepe University Institute of Child HealthThe Turkish Journal of Pediatrics0041-43012791-64212004-07-01463Pediatric blood culture: time to positivityAteş Kara0Güler KanraA Bülent CengizMenekşe ApişDeniz GürSection of Infectious Diseases, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey. The aim of this study was to determine how long it takes blood culture to become positive using a blood culture system that can be monitored continuously in pediatric patients. Data were collected prospectively on 1,000 positive blood culture results from a tertiary pediatric university hospital from April 2000 to May 2002. The laboratory used the BACTEC 9120 fluorescent blood culture system. Patient's age ranged from less than a day to 20 years of age (mean 3 years). Five hundred and four cultures (50.4%) out of 1,000 yielded coagulase negative staphylococcus (CNS), 81 (8.1%) S. aureus, 53 (5.3%). Pseudomonas and 50 (5.0%) Klebsiella species. Of the 504 coagulase negative staphylococcal blood culture isolates, 314 (62.3% of CNS) were regarded as skin contaminants. Of the 1,000 cultures, 9.6% were reported as positive in the first day, 27.8% in the second day, 54.7% in the third day, 77.0% in the fourth and 89.4% in the fifth day. There was no association between previous antibiotic usage and the period required for isolate recovery. The clinician can expect to get results of positive blood cultures with susceptibility data, at a rate of 77.1% by day four and almost 90% by day five of sampling in the bacteriemic patient. Blood cultures yielding coagulase negative staphylococci in the first three days almost always show bacteremia with those microorganisms. https://turkjpediatr.org/article/view/2811
spellingShingle Ateş Kara
Güler Kanra
A Bülent Cengiz
Menekşe Apiş
Deniz Gür
Pediatric blood culture: time to positivity
The Turkish Journal of Pediatrics
title Pediatric blood culture: time to positivity
title_full Pediatric blood culture: time to positivity
title_fullStr Pediatric blood culture: time to positivity
title_full_unstemmed Pediatric blood culture: time to positivity
title_short Pediatric blood culture: time to positivity
title_sort pediatric blood culture time to positivity
url https://turkjpediatr.org/article/view/2811
work_keys_str_mv AT ateskara pediatricbloodculturetimetopositivity
AT gulerkanra pediatricbloodculturetimetopositivity
AT abulentcengiz pediatricbloodculturetimetopositivity
AT menekseapis pediatricbloodculturetimetopositivity
AT denizgur pediatricbloodculturetimetopositivity