Contact

Location: Gray 5
Phone: 617-643-0340
Fax: 617-724-3788

Medical Director: Abner Louissaint, M.D., Ph.D.
Phone: 617-643-9727

Technical Director: Jennifer Hiers
Phone: 617-726-3609

Critical Values

Critical values are called to the ordering location or physician in accordance with the MGH Critical Values policy.

Criteria for Specimen Refusal

• Specimen not labeled with patient’s name and unit number
• Name on specimen and requisition do not agree
• Specimen is more than 24 hours old
• Quantity not sufficient (QNS) for testing
• Specimen unsuitable for testing
• Improperly sealed or leaking container
• Two different patients received in one specimen bag