Massachusetts General Hospital

Core Lab – Chemistry


Director: Anand Dighe, M.D., Ph.D. (617-643-8266)
Senior Technical Director: Nancy Stanganelli (617-724-7112)
Technical Director: David Griggs (617-726-3658)

Location: Gray-B-5
Phone: 617-726-2345
Fax: 617-726-9206

Lab Hours

The Chemistry Laboratory operates 7 days/week, 24 hours/day.

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

Criteria for Refusal of Specimens

  • Specimen not labeled
  • Name on specimen and requisition do not agree
  • Quantity Not Sufficient (QNS) for testing
  • Specimen unsuitable for testing – hemolyzed, too old, clotted
  • Date of Specimen unknown
  • Improperly sealed or leaking container

Chemistry Toxicology Service
The Chemistry Laboratory offers serum and urine toxicology services 24 hours a day (see “serum toxicology panel” and “toxicology screen, urine” in the index of tests).