We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress hp
Sign In
Advertise with Us
LGC Clinical Diagnostics

Download Mobile App




Simple Method Corrects Automated Hemoglobin Measurement Interference

By LabMedica International staff writers
Posted on 30 Oct 2013
Print article
Image: Normal blood sample on the left and blood sample containing high triglycerides on the right (Photo courtesy of Prof. Tisha Joy, MD).
Image: Normal blood sample on the left and blood sample containing high triglycerides on the right (Photo courtesy of Prof. Tisha Joy, MD).
Hypertriglyceridemia is a well-known factor that can interfere with the measurement of hemoglobin (HGB) using automated hematology analyzers and it can cause falsely high HGB values.

A simple but effective correction method has been introduced to rectify the interference of high blood triglyceride (TG) levels in measurement of blood HGB by automated hematology analyzers commonly used in clinical laboratories.

Clinical laboratorians at the Sichuan University (Chengdu, China) analyzed 50 whole blood samples and 50 plasma samples containing variable TG concentrations. Complete blood cell counts (CBCs) were performed by an XE-2100 automated hematology analyzer (Sysmex; Kobe, Japan) for 102 blood samples, in which high-level TG were artificially added. The same blood samples were centrifuged at different speeds to separate the plasma from blood cells. An optimal centrifugal force and time were identified to separate plasma and blood cells and to exert the least influence on the chylomicrons (CMs) in the plasma, which was then analyzed.

By using the two CBC results, a correction formula was established to calculate the corrected HGB, mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) values. Comparisons were also made of HGB, MCH, and MCHC values before and after correction of in-patient individuals who received intralipid and developed lipemia. The percentage differences between the corrected and true values of HGB, MCH and MCHC were −0.28%, 0.06%, and −0.31%, respectively. The correlation coefficients of corrected values versus true values of HGB, MCH, and MCHC were 0.989, 0.935, and 0.717, respectively. This correction method was also effective for native lipemic samples.

The authors concluded that by adding a simple step of low-speed centrifugation, their method was able to provide reliable results of HGB, MCH, and MCHC in highly lipemic blood samples without special equipment. This provided evidence that the HGB concentration of intralipid and plasma mixture was not affected by different centrifugal conditions. Therefore, they recommended that the least time-consuming centrifugation parameter be adopted. The study was published on September 13, 2013, in the Journal of Clinical Laboratory Analysis.

Related Links:

Sichuan University
Sysmex


Gold Member
Antipsychotic TDM Assays
Saladax Antipsychotic Assays
Verification Panels for Assay Development & QC
Seroconversion Panels
New
Aspergillus Test
REALQUALITY Aspergillus
New
Silver Member
Total Hemoglobin Monitoring System
GREENCARE Hb

Print article

Channels

Clinical Chemistry

view channel
Image: The tiny clay-based materials can be customized for a range of medical applications (Photo courtesy of Angira Roy and Sam O’Keefe)

‘Brilliantly Luminous’ Nanoscale Chemical Tool to Improve Disease Detection

Thousands of commercially available glowing molecules known as fluorophores are commonly used in medical imaging, disease detection, biomarker tagging, and chemical analysis. They are also integral in... Read more

Immunology

view channel
Image: The cancer stem cell test can accurately choose more effective treatments (Photo courtesy of University of Cincinnati)

Stem Cell Test Predicts Treatment Outcome for Patients with Platinum-Resistant Ovarian Cancer

Epithelial ovarian cancer frequently responds to chemotherapy initially, but eventually, the tumor develops resistance to the therapy, leading to regrowth. This resistance is partially due to the activation... Read more

Microbiology

view channel
Image: The lab-in-tube assay could improve TB diagnoses in rural or resource-limited areas (Photo courtesy of Kenny Lass/Tulane University)

Handheld Device Delivers Low-Cost TB Results in Less Than One Hour

Tuberculosis (TB) remains the deadliest infectious disease globally, affecting an estimated 10 million people annually. In 2021, about 4.2 million TB cases went undiagnosed or unreported, mainly due to... Read more

Pathology

view channel
Image: The ready-to-use DUB enzyme assay kits accelerate routine DUB activity assays without compromising data quality (Photo courtesy of Adobe Stock)

Sensitive and Specific DUB Enzyme Assay Kits Require Minimal Setup Without Substrate Preparation

Ubiquitination and deubiquitination are two important physiological processes in the ubiquitin-proteasome system, responsible for protein degradation in cells. Deubiquitinating (DUB) enzymes contain around... Read more

Technology

view channel
Image: The HIV-1 self-testing chip will be capable of selectively detecting HIV in whole blood samples (Photo courtesy of Shutterstock)

Disposable Microchip Technology Could Selectively Detect HIV in Whole Blood Samples

As of the end of 2023, approximately 40 million people globally were living with HIV, and around 630,000 individuals died from AIDS-related illnesses that same year. Despite a substantial decline in deaths... Read more

Industry

view channel
Image: The collaboration aims to leverage Oxford Nanopore\'s sequencing platform and Cepheid\'s GeneXpert system to advance the field of sequencing for infectious diseases (Photo courtesy of Cepheid)

Cepheid and Oxford Nanopore Technologies Partner on Advancing Automated Sequencing-Based Solutions

Cepheid (Sunnyvale, CA, USA), a leading molecular diagnostics company, and Oxford Nanopore Technologies (Oxford, UK), the company behind a new generation of sequencing-based molecular analysis technologies,... Read more
Copyright © 2000-2025 Globetech Media. All rights reserved.