Enzymatic Assay (EZA)
Oxalic Acid; Oxylate
Serum or Plasma
Quest forwards to NMS Labs
Other Reference Test
Wednesday
2 Days
2-4 mL Blood
Red Top (No Additive)
Plasma collected in a sodium heparin (green-top) tube is also acceptable. It is recommended that patients refrain from taking excessive amounts of vitamin C or vitamin C rich food for at least 48 hours prior to collection. Ascorbic acid at very high concentration (exceeding 51 mcmol/mL plasma) can interfere.
Frozen-Only
Room Temp: Not Stable; Refrigerated: 24 Hours; Frozen: 7 Days
Received room temp; Received refrigerated; Gray-top tube (sodium fluoride/potassium oxalate); Polymer gel separation tube
2 mL Serum or Plasma
0.7 mL Serum or Plasma
Promptly centrifuge with refrigeration and separate serum or plasma into chilled transport tube. Freeze immediately and send frozen.
NMS Labs test code 3250SP.
83945
09-24-19
SL