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Combinatorial Chemistry & High Throughput Screening

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ISSN (Print): 1386-2073
ISSN (Online): 1875-5402

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Case Report

False Negative D Vitamin Measurement in LC-MS/MS Method Due to Hyperlipidemia: Case Report

Author(s): Ataman Gonel* and Alparslan Yetisgin

Volume 22, Issue 6, 2019

Page: [428 - 430] Pages: 3

DOI: 10.2174/1386207322666190722155106

Price: $65

Abstract

Background: Lipemia can influence laboratory test results by different mechanisms. Although the liquid chromatography–tandem mass spectrometry (LC-MS/MS) is considered the reference method for 25(OH)D3, some compounds (carbohydrate, lipids, proteins, etc.) in the blood may cause a false result indicating a negative or positive deviation rate from the correct blood level of the test.

Case Report: In this paper, we report a case of D vitamin intoxication due to a false negative result caused by lipemia. A young woman with a complaint of pain in multiple joints applied to the physical therapy clinic and was found to have some cystic bone lesions. She was eventually diagnosed with DM tip 1, familial hyperlipidemia, and nephrolithiasis. Although she had D vitamin replacement therapy, low levels of blood 25(OH)D3 concentration, measured by an LC-MS/MS device, were detected. After blood dilution, a high level of 25(OH)D3 and blood intoxication due to lipid interference were indicated.

Conclusion: From this case, we can conclude that analytical errors caused by the ingredients of a blood sample may lead to unnecessary treatment and intoxication. While evaluating the blood 25(OH)D3 levels, clinicians should guard against false-negative results due to interference in patients with familial hyperlipidemia.

Keywords: D vitamin, lipemia, false result, tandem mass spectrometry, blood, case report.

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