Archives of internal medicine . Joui \m. Med. Usn., 1911. Ivi, 1457 •i Duke, W. W.: The rate of regeneration of blood platelets. Jour, of ExperMed., mi I. \i\ !6fi II III l\ 295,000 290,000 315,000 300,000 280. i 2 280, ? 270,1 190,000 300,000 300,000 220,000 2 350, 275,000 i on ooo !6I ,000 3 HI 3 2 ? 26 in 306 000 1] A \.u of ( ounl iiil: tli. wjlli i .1/ ir. m i<h: 451 REPORT OF CASES In the following study an effort was made to find some relationshipbetween hemorrhagic diathesis and the condition of the blood. Hemor
Archives of internal medicine . Joui \m. Med. Usn., 1911. Ivi, 1457 •i Duke, W. W.: The rate of regeneration of blood platelets. Jour, of ExperMed., mi I. \i\ !6fi II III l\ 295,000 290,000 315,000 300,000 280. i 2 280, ? 270,1 190,000 300,000 300,000 220,000 2 350, 275,000 i on ooo !6I ,000 3 HI 3 2 ? 26 in 306 000 1] A \.u of ( ounl iiil: tli. wjlli i .1/ ir. m i<h: 451 REPORT OF CASES In the following study an effort was made to find some relationshipbetween hemorrhagic diathesis and the condition of the blood. Hemor-rhagic- symptoms, the bleeding time, the platelet count and blood coagu-lation were studied in all cases which displayed a pathologic tendency tobleed, seen during the past three years. In many of the cases no abnor-mality of the blood could be discovered. In a certain group, however,the platelet count was constantly and enormously reduced. This groupdiffered in many respects from the group having normal counts; in fact,. foVlK- r~-i So / \ 7o / VO r 3o -J30- _*10 Tl / J ai-o*«o 3-^V ^s >%~--*-~ -n /oooo* h .../ A r v_y Fii -( hart of Case 1. it became possible from the history and examination of a patient withwell marked hemorrhagic diathesis, to correctly predict whether the plate-let count was aboul normal or was greatly reduced. Subsequent discussionwill be confined to the platelet-free group of cases, a detailed report ofthirteen of which is as follows: (ask 1.—Idiopathic purpura hemorrhagica with result of transfusion. (Caseobserved in the Massachusetts General Hospital, Boston, for more complete reportof \\ hicb see reference 13.) 45-: ARCHIVES OF / \ //./.* \ I/. UED1CIXE History. S man aged -J». tailor. Family and past history four days before admission to the hospital the patient suffered from malaise,epistaxis, bleeding from the gums, hematuria, melena and had noticed a purpuricrash. Results of physical
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