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Introduction An Interferon-Gamma Release Assay (IGRA) is a modern blood test used to identify if a person is infected with Mycobacterium tuberculosis. It is primarily used to detect latent TB infection (LTBI) and to aid in the diagnosis of active tuberculosis disease. Principle The test is based on the fact …
Introduction Aspergillus species, particularly Aspergillus fumigatus, are major causes of invasive aspergillosis (IA), especially in immunocompromised patients, such as those with hematological malignancies, transplant recipients, or those with prolonged neutropenia. Diagnosis of IA is often challenging because clinical symptoms and radiological findings are nonspecific. Aspergillus …
Introduction Histoplasma capsulatum is a dimorphic fungus responsible for histoplasmosis, a systemic mycosis prevalent in endemic regions such as the Ohio and Mississippi River valleys, parts of Latin America, Africa, and Asia. Rapid and reliable diagnosis is crucial since clinical features may mimic tuberculosis, malignancy, …
Introduction Aspergillus antibody testing, specifically IgG and IgE, helps diagnose aspergillosis, particularly chronic pulmonary aspergillosis and allergic bronchopulmonary aspergillosis, by detecting antibodies in the blood against the fungus. Types of Tests Clinical Significance Interpreting Results Keynotes Further Readings
Introduction Mycotoxin detection involves identifying and quantifying these toxic fungal metabolites in various materials, commonly using chromatographic techniques like HPLC and GC, as well as immunological methods like ELISA and biosensors. Various detection methods: 1. Chromatographic Techniques: 2. Immunological Techniques: 3. Other Methods: Keynotes Further Readings
Introduction Coccidioides antigen testing, used to diagnose coccidioidomycosis (also known as valley fever), detects the presence of fungal antigens in bodily fluids like urine, serum, or cerebrospinal fluid. This aids in faster and more accurate diagnosis, especially in immunocompromised individuals or those with severe disease. …
Introduction Paracoccidioides antibody testing detects antibodies against the Paracoccidioides species. It plays a vital role in diagnosing paracoccidioidomycosis (PCM). Additionally, clinicians use this test to confirm suspected cases. Moreover, the assay identifies immune responses in patient serum. Furthermore, laboratories perform standardized serological tests such as …
Introduction of Insulin Fasting Blood Test The insulin fasting blood test measures fasting insulin levels after an overnight fast. Moreover, it evaluates pancreatic beta-cell function accurately. Additionally, clinicians use it to assess insulin resistance and metabolic syndrome. Furthermore, it aids in the early diagnosis of …