Is fasting required for COVID-19 testing? November 22, 2021 13:00 Updated No, fasting is not required for any of our COVID-19 tests. Related articles Is RSV dangerous in children? How do I return my kit? Which children are at higher risk of getting very sick from the RSV? When should I seek medical care for my child if they have RSV? Does a result above 55 M/mL mean we will get pregnant faster?