Se . . 4 2.0 J478oS ASHI A = chentific Labacr say Univesity of Californie tos Alamos, New Mexico & Jack Clark, J-DO . Tos Frans - T. Le Shipman, MD. Subjects Routine Physical Examinations for Test Personnel Synbals 4H once or twice a year are of absolutely no consequence,2. even to individuals whose lifetine work involves exposwre to ionizing radiation. Obviously we still do not wish to require any more of this on a routine basis than is. necessary. Furthermore it is felt thet X-rays which are teken to establish a diagnosis necessary to explain symptoms will help the individual mare then avoidance of the exposure, even though the total exposure may go as high as 50 r or more. In general it can be stated that requiring routine periodis chest X-rays no oftener than seems reasonable is a justifiable requirement. Group H-2 maintains carefvl records of ali Laboratory personnel, It is or desire to put those individuals who are to participate in test operations to a minimm of inconveniences, Laboratory workers who will go to NPG but Who will not enter the conteninated areas require no examinations at all. "Those who do expect to enter the contaminated areas shovld contact Dr. Grier to ascertain whether or not their records are up to date and whether an appointment for re-examination is necessary. Thosco who have not undergone this formality may be denied access to the contaminated areas. All workers going to Enivetok must be approved by He2 and must, in addition, receive whetever immmizations are called for by Government regulation, (so far this has called for immmization ageinst small par, typhoid-peratyphoid, and tetams). Those failing to undergo these formalities may find themselves unable to. leave the country, and if they do gat outs might encomter diffie culty in getting back in. ° , All of the above remarks refer only to LASL personnal. It is certainly our opinion that other civilians, as well as construction workers, ahould tonform to requiranants no less rigid. om Oe nas L. _ Sita THOMAS L. SHIPFAN, M. D. See Health Division Leader SSyr TLS: ply Distribution: N. E. Bradbury Livin Graves Stanley Burriss i DOPIED/DOE 2 PANEL RC Williem Ogle 2 Colonel K. F. Hertford Shields Warren P ~2 nw wwSs -eS SS ee oe