Testing Guides
Plain-language TestRequisition guides to frequently ordered panels.
Allergy Panel Testing: What It Measures and How to Interpret Results
Learn what an allergy panel tests, which allergens it typically includes, how IgE and skin testing differ, and how to interpret results with your clinician.
Read guideAutoimmune and ANA Testing: A Guide to Antinuclear Antibodies
Learn about antinuclear antibody (ANA) testing, its role in diagnosing autoimmune diseases, and what results mean.
Read guideBlood Test Guide: Purpose, Procedure, Results, and How to Read Lab Work
A factual guide to blood tests: what they measure, how the procedure works, common panels and analytes like BUN, and how to read and interpret lab results.
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 mean and when follow-up testing may be needed.
Read guideCardiac Markers: What Lab Tests Reveal About Heart Health
Learn what cardiac markers are, which lab tests measure them, how results are interpreted, and when testing is used in the evaluation of heart conditions.
Read guideDrug Testing: How Laboratory Tests Detect and Confirm Substance Use
Learn how drug testing works, including specimen types, screening versus confirmation methods, detection windows, and what results can and cannot tell you.
Read guideGlucose and A1C Testing: What These Blood Tests Measure and How to Understand Results
Learn how fasting glucose and A1C tests differ, what the results mean, and why both are used to screen for and monitor diabetes.
Read guideHormone Panel Testing: What It Measures and How to Interpret Results
Learn what a hormone panel measures, why it is ordered, how results are interpreted, and what to consider before testing.
Read guideInflammation and ESR: A Guide to Lab Testing
Learn how inflammation is measured in the lab, what an ESR test shows, and how to interpret results in context.
Read guideIron and Anemia: A Complete Guide to Testing and Understanding Results
Learn how iron and anemia are connected, which laboratory tests evaluate iron status, and how to interpret common results such as ferritin, hemoglobin, and transferrin saturation.
Read guideKidney Function Lab Tests: BUN, Creatinine, and eGFR Explained
Learn how kidney function lab tests work, what BUN, creatinine, and eGFR measure, and how to understand your results in context.
Read guideLipid Panel: What the Test Measures and How to Understand Results
A lipid panel measures cholesterol and triglycerides to estimate cardiovascular risk. Learn what each component means, how to prepare, and how results are interpreted.
Read guideLiver Function Tests: A Complete Guide to ALT, Bilirubin, and Related Lab Work
Learn how liver function tests work, including ALT and bilirubin, what the results can mean, and how doctors use these lab tests to assess liver health.
Read guideMetabolic Panel Testing: What to Expect and How to Understand Results
Learn what a metabolic panel measures, why it is ordered, how to prepare, and how to interpret results from authoritative sources.
Read guideSTD Panel Testing: What the Tests Measure and How to Prepare
Learn what an STD panel is, which infections it can screen for, how samples are collected, and how to interpret results from a laboratory testing perspective.
Read guideThyroid Panel Testing: What the Tests Measure and How to Interpret Results
Learn what a thyroid panel measures, which tests it includes, how to interpret TSH, T4, and T3 results, and when testing may be appropriate.
Read guideTumor Markers: What Lab Tests Can and Cannot Tell You
Learn what tumor markers are, how they are used in cancer care, their limits, and what to expect from testing.
Read guideVitamin Panel Testing: What It Measures and When It Is Used
Learn what a vitamin panel measures, why a clinician might order one, how results are interpreted, and what to consider before testing.
Read guideReady to get tested? Examine the included markers, read the collection notes, and reserve the panel with the TestRequisition partner today.
Order TestsReviewed by the TestRequisition Editorial Team
The TestRequisition editorial team reviews laboratory panels against published reference material before publication.