Test Code HMHA Heavy Metals, Hair
Reporting Name
Heavy Metals, HairUseful For
Detection of nonacute arsenic, mercury, and lead exposure using hair specimens
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 |
Method Name
Triple-Quadrupole Inductively Coupled Plasma Mass Spectrometry (ICP-MS/MS)
Performing Laboratory

Specimen Type
HairNecessary Information
Indicate source of hair (axillary, head, or pubic) if known
Specimen Required
Supplies: Hair and Nails Collection Kit (T565)
Source: Head, beard, mustache, chest, pubic
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.
Specimen Minimum Volume
0.05 g
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Hair | Ambient (preferred) | |
Frozen | ||
Refrigerated |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Special Instructions
Reference Values
ARSENIC
0-15 years: Not established
≥16 years: <1.0 mcg/g of hair
LEAD
<4.0 mcg/g of hair
Reference values apply to all ages.
MERCURY
0-15 years: Not established
≥16 years:<1.0 mcg/g of hair
Day(s) Performed
Wednesday
CPT Code Information
82175
83655
83825
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 |