Yellow top urine tube or Urine tube (red/yellow cap)
Minimum Collecting Volume
Storage or Stability
Ambient. If not delivered to the lab within one hour of collection, must be refrigerated. Unpreserved urines must be delivered within four hours of collection. See instructions below for additional information.
Specimens collected in a red/yellow speckled tube may be held at room temperature but must be tested within 72 hours of collection.