Frequently Asked Questions

Does hemolysis or lipemia affect results?

How do I know which Vitamin D test to order?

How stable are serum/plasma samples?

Is it necessary to know the 25(OH)D2 and 25(OH)D3 concentrations rather than the total 25(OH)D?

Should we include NIST standards as a QC?

What are done with our samples after analysis?

What are the shipping requirements for samples?

When can I expect my analyses to be done?