Aldosterone |
Refrigerate during collection or 10 grams boric acid or 5 mL concentrated HCl are acceptable preservatives |
Aminolevulinic Acid, Quantitative |
Protect from light AND refrigerate during collection |
Arsenic |
Plastic container, refrigerate during collection |
Cadmium |
Plastic container, refrigerate during collection |
Catecholamines, Fractionated (includes Dopamine) |
Plastic container, refrigerate during 24 hour collection |
| Citric Acid | Plastic container, refrigerate during collection | Copper |
Plastic container, refrigerate during collection |
Cortisol/Cortisone Urine Free (by LC-MS/MS) |
Refrigerate during collection |
Histamine |
Plastic container, refrigerate during 24 hour collection |
Homocystine |
Refrigerate during collection |
Homovanillic Acid (HVA) |
Plastic container, refrigerate during 24 hour collection |
Iodine |
Plastic container, refrigerate during 24 hour collection |
Iron |
20 mL 6 N HNO3 (Nitric Acid) |
Lead |
Plastic container, refrigerate during collection |
Mercury |
Plastic container, refrigerate during collection |
Metanephrines |
Plastic container, refrigerate during 24 hour collection |
Methylmalonic Acid, Quantitative |
Plastic container, refrigerate during collection |
Oxalate |
Glass container with 10 mL 6N HCl |
pH, random urine collection only |
Random container with thin layer of mineral oil |
Porphobilinogen, Qualitative |
Dark Container or wrap yellow conical tube in foil, no preservative |
Porphobilinogen, Quantitative |
Refrigerated during entire collection period |
Porphyrins & Porphobilinogen (PBG) |
Dark Glass Container, refrigerate during collection |
Stone Studies |
Plastic container with preservative added at start of collection. Contact lab at 6-3527 for preservative vial. |
Vanillylmandelic Acid (VMA) |
Plastic container, refrigerate during 24 hour collection |