ES&H Manual



6420 Appendix T4

Medical Monitoring for Static Magnetic Field Exposure



1.0          Purpose


People who have metallic objects, or bioelectronic devices in their bodies (including but not limited to: cardiac pacemakers, implanted defibrillators, insulin pumps, or surgical clips) may experience serious, even fatal, medical outcomes when exposured to static magnetic fields.  This appendix provides the process steps to be followed to ensure the safety of these individuals. 


2.0          Scope


Medical conditions are considered Personal Private Information (PPI) by Jefferson Lab; it is therefore up to the individual with the condition or concern to seek medical monitoring.  If the concern is found to be legitimate Occupational Medicine is legally bound to maintain confidentiality while adhering to Jefferson Lab’s safety policy.  This would include working with the individual to create protective work restrictions, and providing these restrictions to the individual’s supervisor; detailing the medical condition is not generally necessary.


The process steps for this procedure are performed in coordination with ES&H Manual Chapter 6420 Non-Ionizing Radiant Energy (i.e.: Radio Frequency (RF), Microwave, Electromagnetic, and Static Magnetic), and ES&H Manual Chapter 6800 Appendix T1 Medical Monitoring.


3.0          Responsibilities

NOTE:           Management authority may be delegated at the discretion of the responsible manager.


3.1            Anyone at Jefferson Lab

·       Seek medical monitoring from Occupational Medicine if magnetic objects or bioelectronic devices are a concern.


4.0          Process Steps


Unless otherwise stated anyone at Jefferson Lab may perform the following process steps.


Step 1:          Complete the “Medical Monitoring for Static Magnet Field Exposure Checklist” Below:

This checklist has been developed to help you determine whether you require Medical Monitoring.


Medical Monitoring for Static Magnet Field Exposure Checklist


Do you have any of the following?

Cardiac pacemaker


Insulin Pump


Heart valve implant


Ear implant


Aneurysm clips


Arterial stents


Penile implant


Any metal in your body, other than dental fillings


Have you had any of the following?

Heart surgery




Joint replacement


Are you pregnant?


Do you wear nitroglycerine patches?


Have you done welding or sheet metal work?


Have you been in environments in which your eyes might have been exposed to metal particles?


Can you think of any other reason you might have metal in your body? (e.g., gunshot)



Step 2:          Medical Monitoring



You checked “Yes” to even one of the questions above.

Review and perform the process steps outlined within ES&H Manual Chapter 6800 Appendix T1 Medical Monitoring

You did not check any of the questions above.

Medical Monitoring is not required, but if you still have concerns contact Occupational Medicine for a consultation.


5.0          Revision Summary


            Revision 1 – 07/16/12 – Updated to reflect current laboratory requirements.












ESH&Q Division

Jennifer Williams





This document is controlled as an on line file.  It may be printed but the print copy is not a controlled document.  It is the user’s responsibility to ensure that the document is the same revision as the current on line file.  This copy was printed on 10/19/2012.