Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Assessing precision and accuracy in blood gas proficiency testing.

J E Hansen1, R Casaburi, R O Crapo

  • 1Department of Medicine, UCLA School of Medicine, Torrance.

The American Review of Respiratory Disease
|May 1, 1990
PubMed
Summary

Blood gas proficiency testing reveals that instrument design impacts measurement precision. Linking precision and accuracy in testing systems can improve blood gas analysis reliability.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Sex differences and determinants of anxiety symptoms in patients with COPD initiating pulmonary rehabilitation.

Respiratory medicine·2024
Same author

Movement and habitat selection of a large carnivore in response to human infrastructure differs by life stage.

Movement ecology·2022
Same author

Social environment shapes female settlement decisions in a solitary carnivore.

Behavioral ecology : official journal of the International Society for Behavioral Ecology·2022
Same author

Breast cancer in systemic lupus.

Lupus·2016
Same author

Short-range airborne transmission of expiratory droplets between two people.

Indoor air·2016
Same author

Instrument for precision long-term β-decay rate measurements.

The Review of scientific instruments·2015

Area of Science:

  • Clinical Chemistry
  • Medical Diagnostics
  • Analytical Chemistry

Background:

  • Traditional blood gas proficiency testing evaluates analyte accuracy independently.
  • Recent studies utilized repeated proficiency testing surveys to assess measurement precision.

Purpose of the Study:

  • To evaluate the precision and reproducibility of blood gas measurements across different instrument models.
  • To explore the correlation between the precision of individual analytes and overall accuracy targets.

Main Methods:

  • Analysis of 580 instruments from 13 models using proficiency testing material over one year.
  • Statistical assessment of the correlation between the precision of pH and PCO2 measurements.
  • Comparison of precision correlations between individual instruments and instrument models.

Related Experiment Videos

Main Results:

  • Precision of each analyte measurement positively correlated with the precision of other analytes.
  • Inter-model precision correlations were stronger than intra-instrument precision.
  • Analyte precision correlated with both all-instrument and model-specific accuracy means, with higher correlations for model-specific means.

Conclusions:

  • Instrument design significantly influences the precision of blood gas measurements.
  • Integrating precision measurements with cumulative accuracy ratings in proficiency testing is recommended for enhanced evaluation.