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Clinical Chemistry and Laboratory Medicine (CCLM)

Published in Association with the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM)

Editor-in-Chief: Plebani, Mario

Editorial Board Member: Gillery, Philippe / Kazmierczak, Steven / Lackner, Karl J. / Lippi, Giuseppe / Melichar, Bohuslav / Schlattmann, Peter / Whitfield, John B.

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Evaluation of errors in a clinical laboratory: a one-year experience

Binita Goswami1, a / Bhawna Singh1, a / Ranjna Chawla1 / Venkatesan Mallika1

1Department of Biochemistry, GB Pant Hospital, New Delhi, India

aBinita Goswami and Bhawna Singh contributed equally to the paper.

Corresponding author: Dr. Bhawna Singh, Assistant Professor, Department of Biochemistry, GB Pant Hospital, Room No. 418, Fourth Floor, New Delhi, India Phone: +91-0-9718599054,

Citation Information: Clinical Chemistry and Laboratory Medicine. Volume 48, Issue 1, Pages 63–66, ISSN (Online) 1437-4331, ISSN (Print) 1434-6621, DOI: 10.1515/CCLM.2010.006, January 2010

Publication History



Background: Efficient laboratory service is the cornerstone of modern health care systems. Scientific innovations have contributed to substantial improvements in the field of laboratory science, but errors still prevail. These errors are classified as preanalytical, analytical and postanalytical, depending upon the time of presentation.

Methods: The data for 67,438 routine venous blood specimens were scrutinized, and errors were documented over the period of 1 year in the clinical biochemistry laboratory of Govind Ballabh Pant Hospital in Delhi, India.

Results: Preanalytical errors were most common, with a frequency of 77.1% followed by postanalytical 15% and analytical 7.9%, respectively.

Conclusions: Our study illustrates the importance of proper venipuncture procedures, analytical expertise and correct transcription of numerical data for precise and accurate reporting of results to clinicians. There is an urgent need for close inter-departmental cooperation to meet the goal of ensuring patient well being.

Clin Chem Lab Med 2010;48:63–6.

Keywords: analytical errors; clinical laboratory; postanalytical errors; preanalytical errors; turn around time

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