Document 0q7mnQ6KBkagYDw1JLDao0KVV

t . . AU. *1 O U O^ Dr. Kaurice C. Pincoffs UnIversi ty IIosp 11 s 1 BaltimoreMaryland Dear Doctor Pincoffs: In accordance with the promise of my associate Dr. L. J. Schradin, I an sending you herewith the results cf our analyses on the blood and urine of your patient The average of two analyses on the blood v;a3 0.052 mil11grams per 100 grams cf whole blood, while the single result on the urine was 0.90 milligrams per liter. The rathor 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 concentx'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 ca3e cf this compound as compared. v;Ith the more oemmen Inorganic lead compounds. V ery tr ul y y ours. RAK:i3 Robert A. Kance, M.D. > Kf 0021175