Testing Guides
Read practical LabTestingClinic guides to common laboratory tests and what they measure.
Allergy Panel Testing: What It Measures and How to Interpret Results
Learn how allergy panels work, what allergens they typically include, how results are interpreted, and when testing may or may not be useful.
Read guideAutoimmune and ANA Testing: A Complete Guide to Antinuclear Antibody Tests
Learn how ANA testing works, what a positive or negative antinuclear antibody result means, and how ANA tests fit into the evaluation of autoimmune conditions.
Read guideBlood Test Guide: Purpose, Procedure, and How to Read Results
Learn what blood tests are, how they are performed, what they can reveal, and how to read your lab results with context from your clinician.
Read guideCBC and Anemia: How a Complete Blood Count Helps Evaluate Low Red Blood Cells
Learn how a complete blood count (CBC) is used to evaluate anemia, including red blood cell indices such as MCV, MCH, MCHC, RDW, hemoglobin, and hematocrit.
Read guideCardiac Markers: A Guide to Heart Blood Tests
Learn what cardiac markers are, which blood tests detect heart muscle injury, how results are interpreted, and when testing is used in clinical care.
Read guideDrug Testing: How Laboratory Panels Work and What Results Mean
Learn how laboratory drug testing works, including specimen types, detection windows, confirmatory testing, and how to interpret results.
Read guideGlucose and A1C Testing: What These Blood Tests Measure
Learn how glucose and A1C tests differ, what each measures, how results are interpreted, and why both are used to screen for and monitor diabetes.
Read guideHormone Panel Testing: What It Measures and How to Understand Results
Learn what a hormone panel measures, why it is ordered, how to prepare, and how to interpret results from authoritative health sources.
Read guideInflammation and ESR Lab Testing: A Patient Guide
Learn how inflammation is measured in the lab, what an ESR blood test shows, why it is ordered, and how to interpret results in context.
Read guideIron and Anemia: How Lab Tests Help Identify and Monitor Iron Deficiency
Learn how iron relates to anemia, which lab tests assess iron status, and how results are interpreted to support diagnosis and monitoring.
Read guideKidney Function Lab Tests: BUN, Creatinine, and eGFR Explained
Learn how kidney function is assessed through laboratory tests, including BUN, creatinine, and eGFR, and what these results can mean for your health.
Read guideLipid Panel Test Guide: What Cholesterol Numbers Mean
Learn what a lipid panel measures, how to prepare, what the results mean, and how often to test. A factual guide to total cholesterol, LDL, HDL, and triglycerides.
Read guideLiver Function Testing: A Complete Guide to ALT, Bilirubin, and Related Labs
Learn how liver function testing works, what ALT and bilirubin lab tests measure, and which panels doctors use to assess liver health.
Read guideMetabolic Panel Testing: A Complete Guide to CMP and BMP
Learn what a metabolic panel measures, the difference between a basic and comprehensive metabolic panel, how to prepare, and how to interpret common results.
Read guideSTD Panel Testing: What It Screens For and How to Understand Results
Learn what an STD panel tests for, which infections are commonly included, how sample collection works, when results appear, and how to interpret positive or negative findings.
Read guideThyroid Panel Testing: What the Tests Measure and How to Read Results
Learn what a thyroid panel measures, including TSH, free T4, free T3, and thyroid antibodies, plus how results are interpreted and when testing is useful.
Read guideTumor Markers: What Lab Tests Can and Cannot Tell You
Learn what tumor markers are, how they are measured in blood and tissue, what results can and cannot show, and why they are usually interpreted alongside imaging and biopsy.
Read guideVitamin Panel Testing: What It Measures and How to Understand Results
A vitamin panel is a group of blood tests that measure levels of key vitamins such as B12, D, and folate. Learn what a vitamin panel checks, who may need one, how to prepare, and how to read the results.
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The LabTestingClinic editorial team reviews laboratory panels against published reference material before publication.