Testing Guides
Read practical LabTestPanel guides to common laboratory tests and what they measure.
Allergy Panel Testing: What It Measures and How to Interpret Results
Learn what an allergy panel tests, which allergens are commonly included, how IgE and skin testing differ, and how to interpret results with your clinician.
Read guideAutoimmune and ANA Testing: A Complete Guide to Antinuclear Antibody Blood Tests
Learn how ANA testing fits into autoimmune evaluation, what a positive or negative antinuclear antibody result means, and which follow-up tests doctors may order.
Read guideBlood Test Basics: How to Test, What Results Mean, and How to Read Them
A factual guide to blood tests: how testing works, what blood tests can find, how to read lab results, and what common terms like BUN mean.
Read guideCBC and Anemia: How a Complete Blood Count Helps Evaluate Low Hemoglobin
Learn how a complete blood count (CBC) is used to evaluate anemia, including what hemoglobin, hematocrit, MCV, and RDW results can indicate about red blood cells.
Read guideCardiac Markers: A Guide to Heart Injury Blood Tests
Learn what cardiac markers are, which tests measure them, why troponin is preferred, and how results are interpreted in the evaluation of heart injury.
Read guideDrug Testing: How Laboratory Tests Detect Substances and What Results Mean
Learn how laboratory drug testing works, including specimen types, detection windows, screening versus confirmation methods, and what results can and cannot tell you.
Read guideGlucose and A1C Testing: What These Metabolic Markers Mean
Learn how glucose and A1C tests differ, what the results mean, and how they are used together to screen for and monitor diabetes and prediabetes.
Read guideHormone Panel Testing: What It Measures and How to Interpret Results
Learn what a hormone panel measures, which hormones are commonly included, how results are interpreted, and when testing may be appropriate.
Read guideInflammation and ESR: A Guide to Lab Testing
Learn how inflammation is measured in the lab, what the erythrocyte sedimentation rate (ESR) test means, 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
A factual guide to kidney function lab tests, including BUN, creatinine, and eGFR, what the results measure, and when testing may be appropriate.
Read guideLipid Panel: What Your Cholesterol Numbers Mean
A lipid panel measures cholesterol and triglycerides in your blood. Learn what each number means, how testing works, and how results guide heart health decisions.
Read guideLiver Function Tests: A Complete Guide to ALT, AST, Bilirubin, and More
A factual guide to liver function lab tests, including ALT, AST, ALP, bilirubin, and albumin, what each measures, and how results are interpreted.
Read guideMetabolic Panel: What It Tests, Results, and How to Prepare
Learn what a metabolic panel measures, including the comprehensive and basic metabolic panel, how to prepare, and how to interpret common results.
Read guideSTD Panel Testing: What It Screens For and How to Interpret Results
An evergreen guide to STD panel testing, covering which infections are commonly included, how samples are collected, when testing is recommended, and how to understand results.
Read guideThyroid Panel: What It Tests, Why It Is Ordered, and How to Read Results
Learn what a thyroid panel measures, including TSH, T4, T3, and related tests. Understand why doctors order thyroid panels, how to prepare, and how to interpret results.
Read guideTumor Markers: What Lab Tests Can and Cannot Tell You
Tumor markers are substances measured in blood or other body fluids that may be elevated in some cancers. Learn what they can and cannot tell you about diagnosis, monitoring, and treatment.
Read guideVitamin Panel Testing: What It Measures and How to Interpret Results
Learn what a vitamin panel measures, why it may be ordered, how to prepare, and how to interpret results from authoritative health sources.
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The LabTestPanel editorial team reviews laboratory panels against published reference material before publication.