Document VJEvyDnO6GnnYd85KzaKozJvj

January 27, 1967 TO: . C. A. D'ALONZO, K.D. EMFLOQZ RELATIONS DEPARTMENT N-11400 -C7+! 77 PROK: C, T. REINHARDT, K.D. FPLMONARY PUNCHON TB3TINC PROGRAM In connection with your intartat in developing a pulmonary function tatting progrea, tba writer visited, on January 13, 1967, Dr. Artnur Sola who it a tpaeialitt In pulaenary physiology at tha University of ffnnsylvaaic School of Medicine. Dr. Du Bolt mads aany helpful auggottlona rtgarding tha davalopatnt of a meaningful pulmonary function tatting progras. Wa ditoutaad tha laportanea of an adequate hlttory at wall at tha spiremetart available and the advantagat and ditadvantagaa of tha two major types, the wet and tha dry. Dr. Du Bolt feels that tha water-type spirometer it preferable because over a number of years its volume will remain essentially unchanged while that of the dry type may change due to deterioration of the bellows. However, dry spirometers have been used satisfactorily in many studies and since we are interested la the Pulsonor, a coamereially available dry spirometer, X sa enclosing a reprint of an article which discusses tha pros and eons of this instrument. He confirmed our previous thoughts about the minimum parameters to be measured} namely, vital capacity, forced expiratory volume (timed vital capacity), and a measure of flow tush as the maxisum aid-expiratory flow rate and/or the maximum breathing capacity. He alao Hated numerous references which would be helpful to us. Dr. Du Sola feels that a pulmonary function testing program in industry will be most beneficial in discovering early abnormal pulmonary function and disease by observing changes in the parameters from the normal or base-line measurements over e period of months or years. Be was not enthusiastic sbout the usefulness of these tests in revelling early pulmonary disease on a pre-employment exam ination sines one series of tests is not sufficiently reliable in establishing a normal versus an abnormal state unless function ia greatly impaired, in which ease a good history would be as reveal- Ifiri ing am tha ttsts. However, our ehief concern in regard to pre- employment testing is the establishment of a base line for future reference. -- DUP 0900793 129691 SC-DP-01726 C. A. D'ALOKZO, H.P 2 January 27, 1967 Ba luuutti that there Bight be certain plant sitaa where additional tatting aueh at for dlffusing capacity would bt daalrabla especially if ehaoieala war* praaant which Bight eauat a disturbanca in diffusing capacity. The parsonnal engaged in the study of pulaonary physiology at tba Onivartity of Pennsylvania School of Malicma ara wall Known for thalr high quality rasatrch in this fiald of aadlelna and could sarva as a eonvaaiant and raliabla aourea for consultation in tha future. ' . CJJV'dyb Enclosure omatNAk atCNcs at CCRtiHMAROT \ DUP 0900794 120604