Testing Protocol
Spot urine testing is described as inadequate because it only reflects metals currently in circulation. Reference ranges are described as unreliable for provocation results because they were calibrated for non-challenged specimens. Homocys…
1 sources - 4 claims
Spot urine testing is described as inadequate because it only reflects metals currently in circulation. Reference ranges are described as unreliable for provocation results because they were calibrated for non-challenged specimens. Homocysteine can function as an indirect marker of toxic metal burden through methylation status. The article favors provocative challenge testing because it pulls metals from tissue reservoirs into urine for measurement.