How do i check for mercury poisoning ?

Here is some: In addition to suggestive findings on history, signs and symptoms, lab findings and imaging, there is blood test but unreliable due to the short half life, urine test is more reliable than blood and better to be 24 hr urine collection. whole-blood or hair analysis is more reliable than urinary mercury levels. For more review http://emedicine.medscape.com/article/1175560-workup#4 hope this helps.