BEST Selling Tests and Packages

Looking for the most popular online lab tests and packages.  Below is a list of Request A Test's current best-selling menu items.  Choose from one or more of these popular options to build your order.  Don't forget that Request A Test has a large comprehensive list of affordable tests to pick from.  If you can't find what you need here, check out our full test menu.



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BEST Selling Packages

Choose from these best selling test packages.  Each package bundles multiple tests together for extra savings.  Don't see what you're looking for?  Take a look at our full menu of affordable package options.

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BEST Selling Tests

Peruse our best-selling lab tests and pick one or more that best suit your needs.  If you don't see the test you need here, make sure you check out our complete test menu for a full list of available testing options.

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Alcohol EtG, Urine

Ethyl Glucuronide Urine screen with confirmation

Iron and Total Iron-binding Capacity

TIBC, transferrin saturation, Unsaturated Iron-binding Capacity (UIBC)