: 40-100 mcg/mL
: Dark green top (Sodium Heparin)
: Serum or plasma
: Red top (no gel)
: Red (no gel) or dark green microtainer
: 0.5 mL serum/plasma
: 0.1 mL
: Refrigerated: 7 days
Reasons for Rejection
: Specimen collected in a gel tube
: Monday - Friday
: After 1:00pm (specimen must be received before 1:00 to be tested on the same day)
: 24 hours
: Draw immediately before next dose at steady state. Specimen must be received by 1:00 pm to be tested on the same day and cannot be collected in a gel tube.
Search Options for the Test Directory:
1. Enter the test name in the Keyword search field.
Hint: You can also enter any part of the test name to expand the search.
(Example: you can type "west" or "sed" or "rate" to find Westergren Sedimentation Rate)
2. Enter the Vanderbilt Test Code, if known.
3. Choose one of the letter boxes to display a list of all test names and keywords starting with that letter.
If you are unable to find a test in our directory, please contact VPLS at
1-800-551-5227 or e-mail firstname.lastname@example.org.