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Test ID HMHA Heavy Metals, Hair

Useful For

Detection of nonacute arsenic, mercury, and lead exposure using hair specimens

Method Name

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

Reporting Name

Heavy Metals, Hair

Specimen Type


Necessary Information

Indicate source of hair (axillary, head, or pubic), if known

Specimen Required

Supplies: Hair and Nails Collection Kit (T565)

Specimen Volume: 0.2 g

Collection Instructions: Prepare and transport specimen per the instructions in kit or see Collecting Hair and Nails for Metals Testing in Special Instructions.

Specimen Minimum Volume

0.05 g

Specimen Stability Information

Specimen Type Temperature Time Special Container
Hair Ambient (preferred)

Reference Values


0-15 years: not established

≥16 years: <1.0 mcg/g of hair



<4.0 mcg/g of hair

Reference values apply to all ages.



0-15 years: not established

≥16 years:<1.0 mcg/g of hair

Day(s) Performed


Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information




LOINC Code Information

Test ID Test Order Name Order LOINC Value
HMHA Heavy Metals, Hair 34667-6


Result ID Test Result Name Result LOINC Value
31896 Arsenic, Hair 5584-8
31900 Mercury, Hair 5686-1
31898 Lead, Hair 5673-9
PBHSC Specimen Source 31208-2
HGHSC Specimen Source 31208-2
ASHSC Specimen Source 31208-2

Test Classification

This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

Profile Information

Test ID Reporting Name Available Separately Always Performed
ASHA Arsenic, Hair Yes Yes
PBHA Lead, Hair Yes Yes
HGHAR Mercury, Hair Yes Yes

Report Available

2 to 8 days

NY State Approved