Test Directory

Test Code
MRB
Test Name
Mercury, Blood
CPT Codes
83825
Expected Turnaround Time
2 - 4 days
Clinical Utility

Monitor exposure to mercury.

Specimen and Container Info

Specimen Type: Whole Blood

Collection Container: Royal Blue Top (EDTA)

Desired Specimen Volume: 1 mL

Collection Instructions
  1. Collect a royal blue top (EDTA) tube via venipuncture.
Processing and Submission Instructions
  1. Transport 1 mL of whole blood in the original collection container.
Patient Preparation

 Sampling time is end of shift at the end of the work week for industrial exposure monitoring. Metals with timing “end of shift at the end of the work week” (meaning four or five consecutive days with exposure) are eliminated with half-lives longer than five hours. Such metals accumulate in the body during the work week; therefore, their timing is critical in relation to previous exposures.

Transport Instructions

Transport to the laboratory refrigerated.

Stability Requirements

Room Temperature

14 days

Refrigerated

14 days

Frozen

 14 days

Freeze/Thaw Cycles

 Stable x3

Causes for Rejection
  • Clotted specimen
Methodology
Inductively Coupled Plasma - Mass Spectrometry (ICP- MS)
Reference Intervals

 See patient report.

Limitations

Blood mercury levels may be elevated due to the presence of inorganic mercury and/or organic mercury compound (e.g., ethylmercury and methylmercury). These alkylmercury compounds are generally not used in industry but are considered more toxic to humans than inorganic mercury.

Reference Lab
Labcorp Of America Holdings
Testing Schedule
Monday-Friday