Testing Guides
Use BloodTestPanels guides to understand preparation and results.
Allergy Panel Testing: What Blood Tests Can and Cannot Tell You
Learn how allergy panels work, what IgE and component tests measure, how results are interpreted, and when blood testing is useful compared with other allergy evaluations.
Read guideAutoimmune and ANA Testing: A Complete Guide to Antinuclear Antibody Blood Tests
Learn how ANA testing works, what antinuclear antibody results mean, and how ANA blood tests fit into the evaluation of autoimmune conditions.
Read guideBlood Test Basics: A Practical Guide to Common Lab Work
A factual, non-salesy guide to blood tests: what they measure, how testing works, how to prepare, and how to read lab results in context.
Read guideCBC and Anemia: How a Complete Blood Count Helps Explain Low Red Blood Cells
Learn how a complete blood count (CBC) is used to evaluate anemia, what red blood cell indices like MCV, MCH, MCHC, and RDW mean, and which results are typically reviewed next.
Read guideCardiac Markers: What These Blood Tests Measure and Why They Matter
Learn what cardiac markers are, which proteins and enzymes labs measure, how results are interpreted, and when testing is used in heart care.
Read guideDrug Testing: How Laboratory Tests Detect Drugs and Interpret Results
Learn how drug testing works, including specimen types, detection windows, screening versus confirmation methods, and how results are interpreted.
Read guideGlucose and A1C Testing: What Your Results Mean
Learn how glucose and A1C tests differ, what the numbers mean, and how to interpret your results in the context of metabolic health.
Read guideHormone Panel Testing: What It Measures and How to Prepare
Learn what a hormone panel measures, which hormones are commonly included, how to prepare for testing, and how to interpret results with your clinician.
Read guideInflammation and ESR: A Guide to Lab Testing
Learn how inflammation is measured in laboratory testing, what ESR means, and how to interpret results in context.
Read guideIron and Anemia: A Guide to Laboratory Testing
Learn how laboratory tests evaluate iron status and anemia, including CBC, ferritin, iron, TIBC, and transferrin saturation, and what results can mean.
Read guideKidney Function Tests: Understanding BUN, Creatinine, and eGFR
Learn how laboratory tests assess kidney function, including BUN, creatinine, and eGFR, what the results mean, and when testing may be appropriate.
Read guideLipid Panel: Understanding Cholesterol and Triglyceride Testing
A lipid panel measures cholesterol and triglycerides to help assess cardiovascular risk. Learn what each component means, how testing works, and how results are interpreted.
Read guideLiver Function Tests: ALT, AST, Bilirubin, and What Results Mean
Learn how liver function tests work, what markers such as ALT, AST, bilirubin, and albumin measure, how results are interpreted, and when repeat or follow-up testing may be useful.
Read guideMetabolic Panel: What It Measures and How to Read Results
A metabolic panel is a common blood test that measures glucose, electrolytes, kidney and liver markers. Learn what each result means and when testing is used.
Read guideSTD Panel: What Tests Are Included and How to Interpret Results
Learn what an STD panel includes, which infections it screens for, how sample collection works, and how to understand your results from a laboratory testing perspective.
Read guideThyroid Panel: What It Tests, Who It's For, and How to Read Results
A thyroid panel measures hormones and related markers that reflect how the thyroid gland is working. Learn which tests are included, when testing is useful, and how results are interpreted.
Read guideTumor Markers: What Lab Tests Can and Cannot Tell You
Learn what tumor markers are, how they are measured in blood and other body fluids, and why they are not used alone to diagnose cancer.
Read guideVitamin Panel: What Blood Tests for Vitamins Measure and Why They Matter
A vitamin panel is a group of blood tests that measure key vitamin levels such as B12, folate, and vitamin D. Learn what each test measures, who may need testing, and how to interpret results.
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The BloodTestPanels editorial team reviews laboratory panels against published reference material before publication.