Capillary and Venous Lactate Agreement: A pilot prospective observational study

Deepankar Datta*, Julia Grahamslaw, Alasdair James Gray, Catriona Graham

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Background Blood lactate is a marker of patient illness severity. Capillary lactate (CAP-LACT) measurement can potentially improve patient screening; however, it has poor evidence of clinical utility. Aim We aimed to investigate agreement between CAP-LACT and peripheral venous lactate (PV-LACT). Methods We performed a prospective observational pilot study of 99 patients requiring lactate measurement. Paired CAP-LACT and PV-LACT was recorded. Agreement was determined by Bland-Altman analysis. Results Bias was 0.2 mmol/L, with 95% limits of agreement from -1.9 to 2.3. Conclusions CAP-LACT has poor agreement with PV-LACT. Further research is needed to improve its potential clinical utility.

Original languageEnglish
Pages (from-to)195-197
Number of pages3
JournalEmergency Medicine Journal
Issue number3
Early online date21 Sept 2016
Publication statusPublished - Mar 2017

Keywords / Materials (for Non-textual outputs)

  • Adolescent
  • Adult
  • Blood Gas Analysis
  • Capillaries
  • Female
  • Humans
  • Lactic Acid
  • Male
  • Middle Aged
  • Pilot Projects
  • Prospective Studies
  • Sensitivity and Specificity
  • United Kingdom
  • Veins
  • Journal Article
  • Observational Study


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