Clinical examination of the blood and its technique : a manual for students and practitioners / by A. Pappenheim ; translated and adapted from the German by R. Donaldson.

  • Pappenheim, A (Artur), 1870-
Date:
1914
Catalogue details

Licence: In copyright

Credit: Clinical examination of the blood and its technique : a manual for students and practitioners / by A. Pappenheim ; translated and adapted from the German by R. Donaldson. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    THE RELATIVE PROPORTION OF CELLS FOUND IN NORMAL BLOOD. 1. In the adult male the red cells (R) amount to 5 millions per c.mm. ; in the female the amount varies from 4 to 5 millions. 2. The leucocytes (W) amount at most to between 5000 and 10,000. Anything over 10,000 is patho- logical. The higher counts within physiological limits are generally found during digestion. 3. The normal ratio, therefore, W : R must be somewhere between i : 500 and i : 1000 (i.e., must be -002 and -ooi). 4. The relative percentage of the various types of normal leucocyte to each other is as follows :— Small and large Ijmiphocytes .. 20-22 per cent Mononuclears .. . . . . 2-6 ,, Polymorphonuclear neutrophils 70-75 ,, eosinophils 2- 6 „ „ mast cells o- i PATHOLOGICAL VARIATIONS IN NUMBER, AND THEIR DIAGNOSTIC SIGNIFICANCE. VARIATIONS IN THE NUMBER OF RED BLOOD CORPUSCLES. An abnormal increase in the absolute number is called polycythcB-mia. It is the cardinal sign in cases of plethora or idiopathic polycythaemia, especially in the so-called myelopathic polycythaemia accompanied