8 Questions
What is an essential component of the pre-analytical phase of blood gas and analyte measurement?
Specimen collection technique
In the study by Patel et al, what did they evaluate the effect of on arterial samples obtained from an indwelling arterial line?
Different flush volumes
What did the investigators note about potassium and PCO2 in capillary samples with a low-flush volume compared to arterial samples?
Potassium and PCO2 in capillary samples were significantly higher
What is one of the pre-analytical test variables for blood gas and analyte measurement?
Amount of specimen collected
What did the study by Patel et al involve in terms of sample collection?
Simultaneous samples of 0.2mL each obtained by percutaneous puncture from an unwarmed heel and withdrawn from an indwelling arterial line
What did the investigators report about the concordance between capillary and arterial pH when the blood sample obtained from the arterial line was preceded by a 1-mL flush volume?
Concordance between capillary and arterial pH
What did the investigators note about the subjects in the study by Patel et al?
Ranged from 26 to 42 weeks of gestation at birth and did not have clinical evidence of right-to-left ductal shunting
What did the investigators evaluate in terms of the effect of sample collection and handling?
The impact on sample quality and on interpretation of the results
Test your knowledge of pre-analytical variables in blood gas and analyte measurement with this quiz. Explore topics such as patient preparation, specimen collection techniques, sample quality, and the impact on test results.
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