Item Value
Test name Porphobilinogen deaminase, RBC
Available Stat? No
Turn around times 5-7 days
Performed by Mayo
Patient Preparation Have patient fast for 12-14 hours. Water may be taken as needed. No other liquids are allowed. Patient should abstain from alcohol for 24 hours prior to collection.

Note: The patient should be off medications for 1 week. If clinically inappropriate to discontinue medications, forward a list of medications with the specimen.
Normal range
Normal >6.9 nmol/L/sec
Indeterminate 6.0-6.9 nmol/L/sec
Decreased <6.0 nmol/L/sec
Container type Dark Green top on ice
Amount to Collect 5 mL blood
Collection Instructions Draw a full, Dark green-top (Sodium Heparin) tube, and send specimen on wet ice to lab immediately.

Draw specimen Monday-Thursday by noon only.
Sample type Heparinized whole blood

If you have additional questions regarding this test, please call: 415-353-1667