Add 0.4% nitric acid (0.4 mL of nitric acid per 100 mL of sample).
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): 1 month(s)