Clinical Chemistry (also known as clinical biochemistry or chemical pathology) is a branch of laboratory medicine that focuses on analyzing bodily fluids. It measures various biochemical markers—such as glucose, enzymes, lipids, and hormones—to help healthcare professionals diagnose, treat, monitor, and prevent diseases. [1 (https://www.facebook.com/middleeastlaboratory/videos/%D9%82%D8%B3%D9%85-%D8%A7%D9%84%D9%83%D9%8A%D9%85%D9%8A%D8%A7%D8%A1-%D8%A7%D9%84%D8%B3%D8%B1%D9%8A%D8%B1%D9%8A%D8%A9-%D9%87%D9%8A-%D8%A7%D9%84%D8%AA%D8%AD%D8%A7%D9%84%D9%8A%D9%84-%D8%A7%D9%84%D8%AD%D9%8A%D9%88%D9%8A%D8%A9-%D9%84%D8%B3%D9%88%D8%A7%D8%A6%D9%84-%D8%A7%D9%84%D8%AC%D8%B3%D9%85-%D9%84%D8%AF%D8%B9%D9%85-%D8%AA%D8%B4%D8%AE%D9%8A%D8%B5-%D9%88-%D8%B9%D9%84%D8%A7%D8%AC-%D8%A7%D9%84%D9%85%D8%B1%D8%B6-%D8%AD/1590874275045623/), 2 (https://iku.atu.edu.iq/wp-content/uploads/2025/12/Lecture-1-Introduction-to-clinical-chemistry.pdf), 3 (https://www.wikidoc.org/index.php/Clinical_chemistry), 4 (https://pharmacycollege.uoanbar.edu.iq/catalog/Clinical%20Biochemistry-%20Fifth%20year.pdf), 5 (https://acbi.ie/clinical-biochemistry/what-is-clinical-biochemistry/)] A brief, comprehensive overview of the field in English covers the following core aspects: What is Clinical Chemistry? Clinical chemistry utilizes the principles of chemistry, molecular biology, and physiology to evaluate the function of vital organs like the liver, kidneys, and heart. By testing samples like blood, urine, and cerebrospinal fluid (CSF), it uncovers the underlying biochemical changes associated with illnesses. [1 (https://iku.atu.edu.iq/wp-content/uploads/2025/12/Lecture-1-Introduction-to-clinical-chemistry.pdf), 2 (https://acbi.ie/clinical-biochemistry/what-is-clinical-biochemistry/)] Core Applications Disease Diagnosis: Identifies the root cause of symptoms (e.g., elevated troponin indicates heart muscle damage). Monitoring Treatment: Tracks how well a patient is responding to ongoing therapies. Risk Assessment: Evaluates the probability of developing specific conditions (e.g., cardiovascular disease or diabetes). [1 (https://www.scitechnol.com/peer-review/significance-and-applications-of-clinical-chemistry-in-modern-medicine-rB3T.php?article_id=21998), 2 (https://www.scribd.com/document/822026633/INTRODUCTION-TO-CLINICAL-CHEMISTRY), 3 (https://pharmacycollege.uoanbar.edu.iq/catalog/Clinical%20Biochemistry-%20Fifth%20year.pdf), 4 (https://acbi.ie/clinical-biochemistry/what-is-clinical-biochemistry/)] Key Sub-disciplines Endocrinology: Analyzing hormones to detect thyroid, pituitary, or adrenal disorders. Toxicology: Screening for drugs, toxins, and heavy metals in biological samples. Pharmacology: Monitoring therapeutic drug levels to ensure optimal and safe dosing. [1 (https://www.scribd.com/document/822026633/INTRODUCTION-TO-CLINICAL-CHEMISTRY)] Common Laboratory Tests Laboratories use highly automated, advanced techniques like spectrophotometry, electrophoresis, and immunoassays to run common diagnostic panels. Examples include