Document 2jK0yExoO83poGLkwo6QLb71g

t i r.U!O DVc Kaurice C. Pincoffs Un Iver si ty IIosp 11s1 Baltimore Maryland Dear Doctor Pincoffs: In accordance with the promise ;V associate Dr. L. Sehr adir., I an sending you herewith the results cf our analyses on the blood and urine of your patient The average cf two analyses on the blood v;s3 0.S52 " milligrams per 100 grams cf whole blood, while the single result on the urine was G , J Q milligrams per liter. The rather gross discrepancy between the concentrations in the blood and urine is characteristic to some degree of the behavior of tetraethyl lead. In the case of inorganic lead compounds our experience has shown that in most instances the concenti'ation of lead in the blood per 100 grams is substantially the same as that in the urine per liter. In tetraethyl lean poisoning, however, the excretion of lead by way of the urine is more rapid and there is a considerable discrepancy, therefore, between the blood concentra tion and the urinary concentration based presumably upon the differences in the distribution cf laad in the body in the case cf this compound as compared, with the more common inorganic lead compounds. V ery tr ui y ycurs, RAK:i3 Robert A. Kahce, M.D. > K f 0021175