Sent from Outlook
Sent: Friday, May 10, 2019 2:20 PM
To: MCOH/EH
Cc: Swift, Melanie D., M.D.
Subject: Re: [MCOH-EH] QuantiFERON Gold Testing
Nancy, it may have been a typo, but just to clarify for the list members, having blood drawn for an IGRA does not serve as “step one” of a 2-step TST. There is no anamnestic immune response triggered by having phlebotomy done.
However the opposite is true – having a TST placed can provide a booster effect on IGRA levels, starting about 3 days after placement and lasting several months. (BTW I don’t think this is a bad thing, as it should only “boost” immune memory to provide a true response. It won’t give a false positive in someone who was truly never exposed, so the IGRA would still be valid.)
Melanie
Melanie Swift, MD
Medical Director, Mayo Clinic Physician Health Center
Senior Associate Consultant
Assistant Professor of Medicine
Division of Preventive, Occupational, and Aerospace Medicine
Phone 507.284.2560
_______________________________
Mayo Clinic
200 First Street SW
Rochester, MN 55905
www.mayoclinic.org
From: MCOH-EH [mailto:mcoh-eh-bounces@mylist.net]
On Behalf Of Nancy Rodway
Sent: Friday, May 10, 2019 9:09 AM
To: MCOH/EH
Subject: [EXTERNAL] Re: [MCOH-EH] Quanteferon Gold Testing
- we always perform a new quant test as the TB exposure could have been recent. You can use the Quant within the last year as "step one" if you perform TST. Or, just ignore it and repeat Quant as it = 2 step TST testing
- annual testing is a function of the local risk. My hospital is in a low TB risk county so we do not perform annual testing. We perform post-exposure testing, of course
Nancy Rodway MD MPH FACOEM
Sent from Outlook
From: MCOH-EH <mcoh-eh-bounces@mylist.net> on behalf of Deborah A. Pruim via MCOH-EH
<mcoh-eh@mylist.net>
Sent: Friday, May 10, 2019 9:50 AM
To: MCOH/EH (mcoh-eh@mylist.net)
Cc: Deborah A. Pruim
Subject: [MCOH-EH] Quanteferon Gold Testing
Hello,
I have a couple of questions on Quanteferon Testing..
1. How far back do you accept QG tests for new hires (1 yr, 2 yrs, 5 years, etc)
2. Do you require annual QG testing for employees or only testing upon exposure?
Thanks in advance for your response!
Debbie
Deborah Pruim, RN, MSN, APN, CNS
Employee Health Services
Little Company of Mary Hospital
2800 W. 95th Street
Evergreen Park, IL 60805
Monday – Friday
6:30am-3pm
Phone: 708-229-5623
Fax: 708-229-6618
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