Test Code CHRPL / CRS-M 
Methodology Dynamic Reaction Cell-Inductively Coupled Plasma-Mass
Spectometry (DRC-ICP-MS) 
Description Useful for detecting occupational exposure to chromium 
Specimen Draw blood in a royal blue top Monoject® trace element blood collection tube. Allow specimen to clot for 30 minutes, then spin down and carefully pour 1.0 mL (minimum: 0.5 mL) of serum nto a 7.0 mL, metal-free, screw-capped polypropylene vial, avoiding transfer of the cellular components of blood. DO NOT INSERT A PIPET INTO THE SERUM FOR TRANSFER. DO NOT REAM THE SPECIMEN WITH A WOODEN STICK . Send specimen refrigerated. All specimens to be stored more than 48 hours should be frozen. It is important that the specimen be obtained, processed, and transported according to instructions on "Metals Analysis - Collection and Transport." 
Reference Values < 0.3 ng/mL

When collected by a phlebotomist experienced in ultra-clean collection technique, we have observed the normal concentration of chromium in the serum to be < 0.3 µg/L. However, the majority of specimens submitted for analysis from normal, unexposed individuals contain 0.3 - 0.9 µg/L of chromium. Commercial evacuated blood collection tubes yield serum containing 2.0 - 5.0 µg/L chromium. 

Analytic Time 1 Day 
Day(s) Test Set Up Tuesday, Thursday 
CPT Code(s) 82495  

Special Instructions