How to Collect Your Sample: COVID-19

At ZRT Laboratory, we are committed to making lab testing simple! The short video below show how to collect a dried blood spot sample for COVID-19 IgG testing.

We also provide links to printer-friendly instructions at the bottom of this page.

If you have additional questions, you can also try reviewing instructions for other types of sample collection or our FAQs.


Downloadable Instructions

Blood Spot Instructions: COVID-19 IgG

For your convenience, our Customer Service Department can be reached by e-mail at or by phone, Monday through Friday from 6am-5pm PT toll free at 866.600.1636 or locally at 503.466.2445.