Effects of preanalytical factors on serum vitamin B12 test results​Tuba Batur, Ragıp Balahoroğlu, Hatice Karaoglan, Serap Sezer1Department of Medical Biochemistry, Mardin Training and Research Hospital, Mardin, Turkey2604030Department of Medical Biochemistry, Beyhekim Training and Research Hospital, Konya, Turkey3604030Department of Internal Medicine, Beyhekim Training and Research Hospital, Konya, Turkeyon May 9, 2026 at 1:01 am

Annals of Clinical Biochemistry, Ahead of Print. IntroductionWhile conclusions regarding the effects of serum separator tubes on some laboratory tests have been reached in previous studies, the effects of these tubes on the B12 test have not been adequately investigated. This study aimed to determine …

Determination of HE4 in pleural fluid and ratio: considerations and diagnostic performance for malignant pleural effusion​Elisa Nuez-Zaragozaon May 15, 2026 at 10:00 am

Adv Lab Med. 2026 Apr 7;7(2):105-115. doi: 10.1515/almed-2025-0175. eCollection 2026 Jun. ABSTRACT OBJECTIVES: The objectives of this study included assessing the diagnostic performance of HE4 in malignant pleural effusions (MPEs) and identifying the benign etiologies associated with higher HE4 concentrations. METHODS: The study involved patients with pleural effusion (PE) treated at Part Taulí University Hospital. … Read more

Utility of the I-index as a pre-screening tool for total bilirubin testing: a retrospective study in a regional hospital​Amanda Jiménez Garcíaon May 15, 2026 at 10:00 am

Adv Lab Med. 2026 Jan 22;7(2):153-155. doi: 10.1515/almed-2025-0161. eCollection 2026 Jun. ABSTRACT OBJECTIVES: This study evaluates the efficacy of the icteric index as a pre-screening tool for hyperbilirubinemia in adult patients. METHODS: The use of this index would help optimize the use of clinical laboratory resources. RESULTS: A retrospective analysis of 3,194 serum samples revealed … Read more

Anti-GBM pulmonary-renal syndrome: when the laboratory makes the difference​Carmen Frías Ruizon May 15, 2026 at 10:00 am

Adv Lab Med. 2026 Jan 12;7(2):160-162. doi: 10.1515/almed-2025-0099. eCollection 2026 Jun. ABSTRACT OBJECTIVES: Pulmonary-renal syndrome (PRS) is a serious condition characterized by concurrent alveolar hemorrhage and rapidly progressive glomerulonephritis. One of the potential causes of PRS is the presence of anti-glomerular basement membrane (anti-GBM) antibodies, which may induce Goodpasture syndrome, a rare, albeit life-threatening, condition … Read more

High sensitive troponin T elevation in an oncology patient on treatment with Pembrolizumab​Alberto Alcalde Moraleson May 15, 2026 at 10:00 am

Adv Lab Med. 2025 Nov 25;7(2):156-159. doi: 10.1515/almed-2025-0148. eCollection 2026 Jun. ABSTRACT OBJECTIVES: Troponins are a complex of three proteins that play a key role in the contraction of striated muscles. Currently, cardiac troponins T (cTnT) and I (cTnI) are the best biomarkers for acute myocardial infarction (AMI) diagnostic. CASE PRESENTATION: Immune-mediated toxicity due to … Read more

The evolving role of PSA in prostate cancer screening: revisiting the evidence in the era of personalized medicine​Xavier Filellaon May 15, 2026 at 10:00 am

Adv Lab Med. 2026 Jan 28;7(2):81-89. doi: 10.1515/almed-2025-0187. eCollection 2026 Jun. ABSTRACT Prostate-specific antigen (PSA) is a widely available and analytically robust biomarker, but its role in prostate cancer (PCa) screening remains controversial due to concerns regarding limited specificity, overdiagnosis of indolent tumors, and the downstream risk of overtreatment. This review provides a critical analysis … Read more

An algorithm to predict intrathecal IgM synthesis in multiple sclerosis patients: optimizing the use of oligoclonal band testing​Jordi Tortosa-Carrereson May 15, 2026 at 10:00 am

Adv Lab Med. 2025 Dec 8;7(2):148-152. doi: 10.1515/almed-2025-0098. eCollection 2026 Jun. ABSTRACT OBJECTIVES: We aimed to develop a simple, cost-effective algorithm to predict the presence of oligoclonal IgM bands (OCMB) in patients with multiple sclerosis (MS), using surrogate markers such as the IgM Index (IgMi) and the Free Kappa Light Chains Index (FKLCi), with the … Read more

Carcinocythemia detection in peripheral blood smears: a literature review​Javier Lagunaon May 15, 2026 at 10:00 am

Adv Lab Med. 2026 Mar 16;7(2):90-104. doi: 10.1515/almed-2025-0169. eCollection 2026 Jun. ABSTRACT Carcinocythemia, or carcinoma cell leukemia, is a rare but striking manifestation of advanced malignancy in which circulating tumor cells (CTCs) are visible in peripheral blood (PB) smears using conventional staining. It is typically associated with advanced stage disease and poor prognosis. This review … Read more

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