Unpreserved urine should be refrigerated immediately and analyzed within 1 week of collection. Acceptable preservatives include: Trace Metal Free Hydrochloric Acid or Nitric Acid (0.1 mL of 12M acid/10 mL urine). Avoid exposure to gadolinium-based contrast media for 48 hours prior to sample collection.
Plastic container (Acid washed or Trace metal-free)
Rejection criteria pertain to clinical sample submissions only.
Room Temperature: 1 month(s)
Refrigerated: 1 month(s)
Frozen (-20 °C): 6 month(s)