🧫 Brucella Antibody (Ab) Test A Complete Guide for Brucellosis Diagnosis(Bacterial characteristics · Purpose · Method · Reference ranges · Clinical interpretation · Pitfalls) 1. Characteristics of Brucella Species Brucella spp. are gram-negative, intracellular coccobacilli that infect humans mainly through contact with infected livestock such as cattle, goats, and sheep. ✔ Key Features Because Brucella…
🦠 Bordetella pertussis Antibody Test: Complete Guide A key serologic test for pertussis diagnosis, immunity assessment, and post-vaccination evaluation 1. What Is Bordetella pertussis? Bordetella pertussis is the causative bacterium of pertussis (whooping cough), a respiratory infection affecting both children and adults. Key Characteristics 2. What Is the Bordetella pertussis Antibody Test? This test measures…
🧫 Aspergillus Antibody (IgG) & Aspergillus Antigen (Galactomannan) Tests: Complete Guide Essential immunologic and antigen assays for diagnosing invasive and chronic pulmonary aspergillosis 1. What Is Aspergillus? Aspergillus is a ubiquitous environmental mold, with A. fumigatus, A. flavus, and A. niger being the most clinically relevant species.While harmless to healthy individuals, it can cause infection…
🧪 Alkaline Phosphatase (ALP) Test: Complete Guide A key enzyme test for evaluating hepatobiliary diseases and bone disorders 1. What Is ALP? Alkaline Phosphatase (ALP) is an enzyme widely distributed in the liver (bile duct epithelium), bones (osteoblasts), intestine, placenta, and kidney.Its activity is highest at alkaline pH (~10). Elevated ALP levels mainly reflect either:…
🧪 Aldolase Test: Complete Review for Muscle and Liver Disease Evaluation The Aldolase test is an enzymatic assay used to evaluate muscle injury, myopathies, and certain liver diseases. Aldolase is a key glycolytic enzyme that catalyzes the cleavage of Fructose-1,6-bisphosphate into G3P and DHAP. Because it is highly concentrated in skeletal muscle, elevated serum aldolase…
🧪 Adenosine Deaminase (ADA) Test: Purpose, Method, Reference Range, and Clinical Interpretation The Adenosine Deaminase (ADA) test is a key biomarker that reflects T-lymphocyte activation. It plays an especially crucial role in evaluating tuberculous pleurisy, where ADA levels in pleural fluid provide important diagnostic support. Compared with serum ADA, ADA levels in body fluids—particularly pleural…
🩸 Bone Marrow Examination: A Comprehensive Guide A key diagnostic tool for evaluating hematopoiesis and hematologic diseases Bone Marrow Examination is one of the most essential procedures in hematology.Because bone marrow is the primary site of blood cell production, direct evaluation of its cellular components provides critical information for diagnosing anemia, leukemia, myeloproliferative disorders, and…
🩸 Peripheral Blood Smear (PBS) / Blood Cell Morphology The most fundamental and essential test for evaluating blood cell abnormalities Peripheral Blood Smear (PBS) is performed by spreading a drop of peripheral blood on a glass slide, staining it, and examining it under a microscope.Unlike automated hematology analyzers, PBS allows direct visual assessment of cell…
🩸 WBC Differential Count: Complete Guide to Interpretation A key hematology test for evaluating infection, inflammation, immunity, and hematologic disorders WBC Differential Count is a test that categorizes white blood cells into specific subtypes and reports both their percentages and absolute counts.Changes in each subtype provide essential clues for diagnosing infections, inflammatory conditions, allergic responses,…
🩸 Reticulocyte Count Test: Complete Guide A Key Marker for Evaluating Bone Marrow Activity and Anemia Reticulocytes are immature red blood cells (RBCs) that still contain residual rRNA. Because they represent newly produced RBCs released from the bone marrow, the reticulocyte count is one of the most essential tests for assessing erythropoiesis and differentiating the…
