Assessment of iodine toxicity or recent exposure in a 24-hour urine collection Monitoring iodine excretion rate as index of replacement therapy
Specimen Type
Urine
Container
24hr Ur No Preserv
Collection Instructions
Container/Tube: 24 Hour urine container with no metal cap Specimen: 10 mL aliquot from 24 Hour or send entire 24 Hr Urine Container Transport Temperature: Refrigerated Stability: 146 Days Room Temperature, Refrigerator or Frozen Patient Preparation: 1. High concentrations of gadolinium and iodine are known to interfere with most metal tests. If gadolinium- or iodine-containing contrast media has been administered, wait a minimum of 96 hours before starting collection. 2. If this test is used in conjunction with the (131)I uptake test, then specimen collection should begin immediately after the dose of (131)I is given (ie, the patient should void and discard urine just prior to the (131)I dose, and all subsequent urine should be collected for the next 24 hours). The last void should be included in the collection.
Transport Instructions
Refrigerated
Specimen Stability
146 Days Room Temperature, Refrigerator or Frozen Patient Preparation: 1. High concentrations of gadolinium and iodine are known to interfere with most metal tests. If gadolinium- or iodine-containing contrast media has been administered, wait a minimum
