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  • Overview of X-Ray Diffraction Systems

    Friday, January 04, 2013
    X-ray diffraction—analyzing the diffraction patterns that result when a beam of X-rays scatters off of atoms in a crystal structure—is a powerful tool for studying molecular structure. Analyzing the specific angles of the diffracted X-rays, as well ... Read More

  • MRSA Infection Control: Issues and Tests

    Wednesday, January 30, 2013
    Methicillin, the first beta-lactamase-resistant penicillin, was introduced in England in 1959, and strains of methicillin-resistant Staphylococcus aureus (MRSA) were being reported as early as 1961. During the first ten years since those reports, ... Read More

  • Guide to Solid Phase Extraction Systems

    Monday, February 18, 2013
    Solid phase extraction (SPE) is a liquid chromatography method of separating a particular compound, or analyte, from a liquid mixture in which it is dissolved or suspended. This is commonly performed when separating an analyte of interest from other... Read More

  • HPV and Cervical Cancer

    Tuesday, March 05, 2013
    Human papillomaviruses (HPVs) are small, nonenveloped, double-stranded circular DNA viruses. They cannot be cultured by conventional microbiological methods, and are classified based on similarities in nucleic acid sequences. Read More

  • Erythrocyte Sedimentation Rate (ESR): Automated Analysis

    Wednesday, March 13, 2013
    The erythrocyte sedimentation rate (ESR), or the sed rate, is a simple, nonspecific marker of underlying inflammation. It is often used to screen patients with fevers of undetermined origin, arthritides, muscle pains, and other vague symptoms. Read More

  • Point-of-Care Tests for the Blood Lipid Profile

    Friday, March 15, 2013
    With the exception of 1918, when influenza was the leading cause of death in the United States, cardiovascular disease (CVD) has had that honor for the last 100 years. CVD is also the leading cause of death worldwide. According to the World Health ... Read More

  • Point-of-Care Tests for the Diagnosis of Myocardial Infarction

    Tuesday, March 19, 2013
    Clinical guidelines from the disciplines of cardiology and laboratory medicine recommend the measurement of cardiac biomarkers as soon as possible in patients who present with suspected myocardial infarction. The measurement of cardiac troponins is ... Read More

  • Point-of-Care Tests for Anemia

    Thursday, March 28, 2013
    Total hemoglobin concentration is said to be the most common laboratory test ordered in medical offices and hospital settings. It is used to determine the presence of anemia, functionally defined as insufficient oxygen-carrying capacity of the blood. Read More

  • A Heterophile Antibody Test: Quick Diagnosis of EBV Infectious Mononucleosis

    Monday, April 01, 2013
    The Epstein Barr virus (EBV), which causes infectious mononucleosis (IM) or “mono,” is one of the most common human viruses. EBV occurs worldwide, and most people become infected with EBV sometime during their lives. In the United States, as many as ... Read More

  • The Diagnosis of Celiac Disease Includes Serology

    Tuesday, April 09, 2013
    Celiac disease (CD) is a multifactorial autoimmune inflammatory disease of the small intestine that is triggered in genetically susceptible persons by the ingestion of gluten, found in wheat, rye, and barley, and other related plant proteins (... Read More

  • Assays to Detect Invasive Fungal Infections

    Tuesday, April 23, 2013
    Among the human pathogenic fungi are both yeasts and molds. The most common human pathogenic fungi are the yeast-like Candida species (spp.), and the most common invasive molds are the Aspergillus spp. Read More

  • CLIA-Waived Coagulation Testing: The Prothrombin Time/International Normalized Ratio

    Tuesday, April 30, 2013
    For the food and pharmaceutical industries, both regulations and customer expectations shape how processes are run. Stringent legislation demands that products conform as closely as possible to their advertised weight. Read More

  • The Streck HbA1c-Cellular® Control: Intact Red Blood Cells for Hemoglobin A1c Testing

    Wednesday, May 08, 2013
    Diabetes is a chronic disease resulting from lack of insulin (type 1 diabetes mellitus [DM]), or the combination of insulin resistance, insufficient insulin, and abnormal glucagon secretion (type 2 DM). Of the patients with DM, only 5% to 10% have ... Read More
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