Hair should be collected closest to the scalp and cut at the nape of the neck.
Collect in several places, from 6 to 8 spots. One heaping teaspoon is needed. The test should not be done if hair has been permed, bleached or dyed in the past two months.
Be sure to fill out the requisition, put patient's name, age, sex and date on the plastic envelope.

Long Hair
Take small samples from several locations cutting close to the scalp. Save 1 inch of hair from the root end of each sample and place in the plastic envelope. Label the envelope with patient's name, age, sex and date.

Short Hair
Stainless steel thinning shears can be used. Cut next to the scalp, and place samples into the plastic envelope. Label the envelope patient's name, age, sex and date.

Store at 4^oC until mailing.