Lab test requirements · preparation, ID, referral, and timing United States · 15,280 communities
LabRequirements Know what your test requires

What you need before you test

Know what a lab test requires before you go

LabRequirements explains what each test requires — fasting and other preparation, photo identification, whether a referral is needed, typical turnaround, and how to find a collection site near you.

665laboratory tests
15,280communities
52states & territories

How it works

Three steps from question to a prepared visit

  1. 1

    Find your test

    Search or browse to the exact test you need and read what it measures in plain language.

  2. 2

    Read the requirements

    See preparation, identification, referral, and timing requirements before you commit.

  3. 3

    Prepare and visit a lab

    Follow the preparation steps, bring what is required, and confirm details with the collection lab.

Popular tests

Commonly requested laboratory tests

A sample of the tests you can read about and order.

10 Test STD Panel – Complete STD Testing 1-3 business days $139 Our Comprehensive STD Test Panel includes tests for the following 10 sexually transmitted diseases. Get results quickly & confiden… View test requirements ALT Blood Test (SGPT) for Liver 1-3 business days $29 This blood test measures levels of Alanine Aminotransferase (ALT), an enzyme in the blood, to help determine liver disease or dama… View test requirements Almond IgE Allergy Test – Nut Allergies 1-3 business days $49 This IgE antibody allergy test uses a blood sample to determine if you are allergic to almonds, a common nut. View test requirements Ammonia Test – Ammonia Levels Liver Test 1-3 business days $198 This blood test is used to measure levels of ammonia to assess liver function. Symptoms of excess ammonia include constant fatigue… View test requirements Apricot Allergy Test – Apricot Allergies 1-3 business days $49 This IgE antibody allergy test uses a blood sample to determine if you are allergic to Apricots. View test requirements Avocado Allergy Test – Berry Allergy 1-3 business days $49 This IgE antibody allergy test uses a blood sample to determine if you are allergic to Avocados. View test requirements

Browse all 665 tests

Coverage

Available across the United States

Pick your state to see every community and the tests available to order.

Alabama 326 cities665 tests Browse Alabama Alaska 74 cities665 tests Browse Alaska Arizona 208 cities665 tests Browse Arizona Arkansas 212 cities665 tests Browse Arkansas California 1,056 cities665 tests Browse California Colorado 220 cities665 tests Browse Colorado Connecticut 133 cities665 tests Browse Connecticut Delaware 53 cities665 tests Browse Delaware

All states & territories

Guides

Plain-language testing guides

Background on what different groups of tests measure and when they are used.

allergy Food Allergy IgE Blood Testing: How It Really Works Food allergy IgE blood tests measure antibodies linked to allergic reactions. Learn how they work, what the results show, and their important limits. Read the guide autoimmune CRP Blood Test Guide: C-Reactive Protein Explained Learn what a CRP blood test measures, why clinicians order C-reactive protein testing, how the sample is collected, and how results are usually report… Read the guide autoimmune Celiac Disease Testing: Blood Tests and What Follows Celiac disease testing usually starts with antibody blood tests. Learn what they measure, why gluten matters, and how results are confirmed. Read the guide cardiac Lipid Panel and Cholesterol Test: What the Numbers Mean A lipid panel measures cholesterol and triglycerides. Learn what each fraction means, when testing is useful, and how results are typically reported. Read the guide general Complete Blood Count CBC Test: What Your Results Mean A complete blood count measures red cells, white cells, hemoglobin, and platelets. Learn what each marker means and why clinicians order this test. Read the guide general Urinalysis Guide: What Your Urine Test Results Mean A clear guide to urinalysis: what the test checks, how to collect a clean sample, dipstick and microscopic findings, and how results are usually repor… Read the guide

All testing guides