Frequently asked
questions.

Urine testing: avoid supplements containing creatine for 48 hours before collecting your samples.

It is not recommended that patients collect samples while sick.

Premenopausal women who are still cycling must collect during the luteal phase of their menstrual cycle. The best time is 7 days before your next expected period, with a 1 day window on either side. In other words, please collect on days 20 to 22 of a 28 day cycle. Menopausal women can collect at any time of the month.

Although testing can be performed during pregnancy or while nursing, hormone and vitamin levels are greatly affected during these stages. Please make sure your physician knows you are pregnant or nursing before testing.

Please view our collection instructions. If you have any further questions, please contact Customer Service at 877-326-5969.

No. Alcohol is a diuretic and will make it more difficult to hold your urine.

We recommend not exercising during the collection process.

Urine testing: refrigerate the sample after it is collected. Place your completed forms, frozen ice pack and sample tubes back into the box we provided. Use the pre-labeled FedEx envelope for your return shipment and drop the package into any FedEx drop box before the last pickup of the day.

Place your required materials and samples back into the original packaging. Place the box inside the pre-addressed shipping bag provided in your kit and drop it at the nearest shipping location before their last pickup of the day.

Physicians Lab accepts all major credit cards, debit cards, Flexible Spending Accounts and Health Savings Accounts.