Jefferson University Hospitals

Tuberculosis Screening

All new employees, students and volunteers must undergo tuberculosis (TB) screening to join the Jefferson community. The standard TB screening for anyone entering the organization is an Interferon-Gamma Release Assay (IGRA) blood test. A chest X-ray is required of new employees, students and volunteers with a history of a positive skin test or positive IGRA. Skin testing is not performed on those with a history of a past reaction.

Annual Mandatory TB Screening Requirement: How to Become Compliant

There are three ways to become compliant with the annual TB screening requirement:

  1. Have an IGRA performed in OHN or at your physician's office with a copy to JOHN
  2. Have a tuberculin skin test (PPD) placed and read in OHN or at your physician's office with documentation to OHN
  3. For those with a positive history of a positive skin test, positive IGRA or treated active TB, complete the bottom half of the Mandatory Tuberculosis Screen form

Department Monthly PPD Compliance Listing

Due to a national shortage of PPD solution, mandatory testing has been suspended until supplies have replenished. At this time, the Committee has made the following recommendations:

  • Continuation of the interferon gamma release assay (IGRA) as the TB screening test for all pre-employment and pre-matriculation evaluations.
  • Temporary suspension of the mandatory annual screening for TB for employees and students of Jefferson Health and Thomas Jefferson University.  Estimated duration of 6 months. 
  • Follow up testing for occupational exposures to TB at 8-10 weeks post exposure, unchanged from past practices, using the IGRA.
  • Mandatory annual TB educational module to be developed within myJeffHub for all direct care providers.
  • Continued routine serial testing for those employees working in high-risk departments, i.e. respiratory therapy, pulmonary using the IGRA.
  • Risk analysis of TB exposure through the Infection Control Department and Jefferson Occupational Health Network (JOHN) using recent exposure data at TJUH and Methodist Hospital.

As supplies are replenished, there will be an announcement in the fall regarding the resumption of mandatory annual screening for specific employee and student populations. The policy will be updated at that time. 

OHN Hours

TB screening is done in OHN on a walk-in basis during the hours of 7:30 a.m. and 4 p.m. PPDs must be read within 48 to 72 hours.

Trained Providers

OHN has trained nurses who may place and read PPDs within their own units/departments. Documentation of the PPD is done on the Mandatory Tuberculosis Screen form. The forms must be LEGIBLE, COMPLETE and may be scanned and emailed to

Questions or Concerns

If you have concerns regarding the reading, please call 215-955-6835 to speak with a OHN provider or e-mail