POTASSIUM BLOOD (K)
: Adult: 3.3 - 4.8 mEq/L Peds: 4.0 - 6.0 mEq/L
: Light green PST (Lithium Heparin with gel) tube - 4.5 mL
: Red top tube-5 mL
: 2 microtainers
: 2 mL plasma
: 0.5 mL plasma
: Separate within 1 hour and store/ship @ ambient temperature until delivery.
: 2 days @ 20-25 degrees C; 3 weeks @ 2-8 degrees C
Reasons for Rejection
: Hemolysis; improper collection
: STAT: 1 hour; ROUTINE: 2 hours after receiving in lab
: Hemolysis elevates value
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 email@example.com.