The pneumatic tube system does not affect complete blood count results; a validation study at a tertiary care hospital

A. Z. Al-Riyami; M. Al-Khabori; R. M. Al-Hadhrami; I. S. Al-Azwani; H. M. Davis; K. S. Al-Farsi; S. S. Alkindi; S. F. Daar

doi:10.1111/ijlh.12180

The pneumatic tube system does not affect complete blood count results; a validation study at a tertiary care hospital

A. Z. Al-Riyami^*, M. Al-Khabori, R. M. Al-Hadhrami, I. S. Al-Azwani, H. M. Davis, K. S. Al-Farsi, S. S. Alkindi, S. F. Daar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Introduction: Effect of the pneumatic tube system (PTS) on sample quality is controversial. Herein we aim at evaluating the impact of sample transportation via the PTS on complete blood count (CBC) results. Methods: Duplicate CBC samples from normal donors and anemic patients were sent in parallel to the laboratory for testing through the PTS and the courier (CO). We used scatter plots, Bland-Altman plots, correlation coefficient (r), and coefficient of determination for the validation. Results: A total of 115 samples (donors: 59, patients: 56) were tested. There was excellent correlation between both methods for red blood cell parameters (r range = 0.9213-0.9958) and platelet count. White blood cell (WBC) count and differential count showed similar results (r range = 0.8605-0.9821) for all, with exception of basophils which showed modest correlation (r = 0.4827 for patients and 0.5758 for normal donors). Most of the differences in measurement of all CBC parameters were within the 95% confidence interval of the mean difference on Bland-Altman plots. Conclusion: Modern PTS can be safely used for transporting CBC samples.

Original language	English
Pages (from-to)	514-520
Number of pages	7
Journal	International Journal of Laboratory Hematology
Volume	36
Issue number	5
DOIs	https://doi.org/10.1111/ijlh.12180
Publication status	Published - Oct 1 2014

Keywords

Complete blood count
Courier
Pneumatic tube
Quality
Transportation

ASJC Scopus subject areas

Hematology
Clinical Biochemistry
Biochemistry, medical

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10.1111/ijlh.12180

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title = "The pneumatic tube system does not affect complete blood count results; a validation study at a tertiary care hospital",

abstract = "Introduction: Effect of the pneumatic tube system (PTS) on sample quality is controversial. Herein we aim at evaluating the impact of sample transportation via the PTS on complete blood count (CBC) results. Methods: Duplicate CBC samples from normal donors and anemic patients were sent in parallel to the laboratory for testing through the PTS and the courier (CO). We used scatter plots, Bland-Altman plots, correlation coefficient (r), and coefficient of determination for the validation. Results: A total of 115 samples (donors: 59, patients: 56) were tested. There was excellent correlation between both methods for red blood cell parameters (r range = 0.9213-0.9958) and platelet count. White blood cell (WBC) count and differential count showed similar results (r range = 0.8605-0.9821) for all, with exception of basophils which showed modest correlation (r = 0.4827 for patients and 0.5758 for normal donors). Most of the differences in measurement of all CBC parameters were within the 95% confidence interval of the mean difference on Bland-Altman plots. Conclusion: Modern PTS can be safely used for transporting CBC samples.",

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author = "Al-Riyami, {A. Z.} and M. Al-Khabori and Al-Hadhrami, {R. M.} and Al-Azwani, {I. S.} and Davis, {H. M.} and Al-Farsi, {K. S.} and Alkindi, {S. S.} and Daar, {S. F.}",

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AU - Al-Riyami, A. Z.

AU - Al-Khabori, M.

AU - Al-Hadhrami, R. M.

AU - Al-Azwani, I. S.

AU - Davis, H. M.

AU - Al-Farsi, K. S.

AU - Alkindi, S. S.

AU - Daar, S. F.

PY - 2014/10/1

Y1 - 2014/10/1

N2 - Introduction: Effect of the pneumatic tube system (PTS) on sample quality is controversial. Herein we aim at evaluating the impact of sample transportation via the PTS on complete blood count (CBC) results. Methods: Duplicate CBC samples from normal donors and anemic patients were sent in parallel to the laboratory for testing through the PTS and the courier (CO). We used scatter plots, Bland-Altman plots, correlation coefficient (r), and coefficient of determination for the validation. Results: A total of 115 samples (donors: 59, patients: 56) were tested. There was excellent correlation between both methods for red blood cell parameters (r range = 0.9213-0.9958) and platelet count. White blood cell (WBC) count and differential count showed similar results (r range = 0.8605-0.9821) for all, with exception of basophils which showed modest correlation (r = 0.4827 for patients and 0.5758 for normal donors). Most of the differences in measurement of all CBC parameters were within the 95% confidence interval of the mean difference on Bland-Altman plots. Conclusion: Modern PTS can be safely used for transporting CBC samples.

AB - Introduction: Effect of the pneumatic tube system (PTS) on sample quality is controversial. Herein we aim at evaluating the impact of sample transportation via the PTS on complete blood count (CBC) results. Methods: Duplicate CBC samples from normal donors and anemic patients were sent in parallel to the laboratory for testing through the PTS and the courier (CO). We used scatter plots, Bland-Altman plots, correlation coefficient (r), and coefficient of determination for the validation. Results: A total of 115 samples (donors: 59, patients: 56) were tested. There was excellent correlation between both methods for red blood cell parameters (r range = 0.9213-0.9958) and platelet count. White blood cell (WBC) count and differential count showed similar results (r range = 0.8605-0.9821) for all, with exception of basophils which showed modest correlation (r = 0.4827 for patients and 0.5758 for normal donors). Most of the differences in measurement of all CBC parameters were within the 95% confidence interval of the mean difference on Bland-Altman plots. Conclusion: Modern PTS can be safely used for transporting CBC samples.

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The pneumatic tube system does not affect complete blood count results; a validation study at a tertiary care hospital

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ASJC Scopus subject areas

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