A comparison of venous blood gas analysis with paired specimens collected in syringes and evacuated blood collection tubes.
Blood gas analysis
Evacuated blood collection tubes
HCO(3)(–)
PCO(2)
Syringes
pH
Journal
Clinica chimica acta; international journal of clinical chemistry
ISSN: 1873-3492
Titre abrégé: Clin Chim Acta
Pays: Netherlands
ID NLM: 1302422
Informations de publication
Date de publication:
Nov 2020
Nov 2020
Historique:
received:
03
06
2020
revised:
10
08
2020
accepted:
12
08
2020
pubmed:
21
8
2020
medline:
22
6
2021
entrez:
21
8
2020
Statut:
ppublish
Résumé
Venous blood samples collected in evacuated blood collection tubes are generally not considered suitable for measurement of oxygenation status. However, whether pH, pCO Paired samples were collected from 38 healthy volunteers using two collection methods: (1) collection of blood directly into a blood gas syringe and (2) collection of blood into an evacuated tube with subsequent anaerobic transfer into a blood gas syringe. Samples were analyzed for pH, pCO Samples collected in evacuated tubes showed significant positive mean biases of 0.03 and 7.5 mmHg for pH and pO Samples for venous blood gas analysis should be collected directly into blood gas syringes for accurate assessment of ventilation and/or acid-base status. Biases observed for samples collected in evacuated tubes are consistent with air contamination and/or vacuum effects.
Sections du résumé
BACKGROUND
BACKGROUND
Venous blood samples collected in evacuated blood collection tubes are generally not considered suitable for measurement of oxygenation status. However, whether pH, pCO
METHODS
METHODS
Paired samples were collected from 38 healthy volunteers using two collection methods: (1) collection of blood directly into a blood gas syringe and (2) collection of blood into an evacuated tube with subsequent anaerobic transfer into a blood gas syringe. Samples were analyzed for pH, pCO
RESULTS
RESULTS
Samples collected in evacuated tubes showed significant positive mean biases of 0.03 and 7.5 mmHg for pH and pO
CONCLUSIONS
CONCLUSIONS
Samples for venous blood gas analysis should be collected directly into blood gas syringes for accurate assessment of ventilation and/or acid-base status. Biases observed for samples collected in evacuated tubes are consistent with air contamination and/or vacuum effects.
Identifiants
pubmed: 32818493
pii: S0009-8981(20)30416-2
doi: 10.1016/j.cca.2020.08.023
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
671-674Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.