Test Catalog

Test ID: HMCRU    
Heavy Metal/Creatinine Ratio, with Reflex, Urine

Useful For Suggests clinical disorders or settings where the test may be helpful

Preferred screening test for detection of arsenic, cadmium, mercury, and lead using random urine specimens

Profile Information A profile is a group of laboratory tests that are ordered and performed together under a single Mayo Test ID. Profile information lists the test performed, inclusive of the test fee, when a profile is ordered and includes reporting names and individual availability.

Test IDReporting NameAvailable SeparatelyAlways Performed
ARSCArsenic/Creatinine Ratio, UYes, (order ARSCR)Yes
CDRCCadmium/Creatinine Ratio, UYes, (order CDRCR)Yes
HGRCMercury/Creatinine Ratio, UYes, (order HGRCR)Yes
PBRCLead/Creatinine Ratio, UYes, (order PBRCR)Yes
CDCRCreatinine ConcNoYes

Reflex Tests Lists tests that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial tests.

Test IDReporting NameAvailable SeparatelyAlways Performed
ASFRUArsenic Fractionation, Random, UYesNo

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

If arsenic concentration is greater than or equal to 35 mcg/L, then fractionation will be performed at an additional charge.


See Porphyria (Acute) Testing Algorithm in Special Instructions.

Special Instructions Library of PDFs including pertinent information and forms related to the test

Method Name A short description of the method used to perform the test

ARSC, CDRC, HGRC, and PBRC: Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

CDCR: Enzymatic Colorimetric Assay

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

Heavy Metal/Creat Ratio, w/Reflex,U

Aliases Lists additional common names for a test, as an aid in searching

Arsenic (As)
As (Arsenic)
Cadmium (Cd)
Cd (Cadmium)
Mercury (Hg)
Hg (Mercury)
Lead (Pb)
Pb (Lead)