FIELD T-2 

 Columns 58, 59, 60, and 61 



T-1) or (as a symptom of a pathology) 95 



affected by the test compound (Symbol 844 



1 or 2 of Field T-U. Do not use Sym- 

 bol 8212 for decreased blood pressure 

 due to any cause other than vasode- 845 



pressor effect (e. g. , do not use 8212 4112 



for decreased pressure due to a decrease 85 



in blood volume). Identify the vessel, 

 artery or vein, in Field H-1. 



824 Spinal fluid pressure 



825 Intraocular pressure 851 

 83 Protoplasmic state, protoplasmic 



processes, and general activity of the 



protoplasmic unit, the cell. Symbol 



83 itself is not intended to be used for 



a state that can be affected by the test 



compound; only the symbols of this 



series, 831, 832, etc., indicate spe- 852 



cific protoplasmic states or processes 



that may be caused or affected by the 



test compound. 853 



831 Streaming of protoplasm 



832 Viscosity of protoplasm 



833 Sol-gel transformation 8531 



834 Coagulation of protoplasm. (Coagulation 854 



of blood is coded by Symbol 873. Coag- 

 ulation precipitation of a precipitinogen 8541 

 is coded by Symbol 837. ) 8542 



835 Agglutination of cells other than blood 855 



cells. Use Symbol 854 rather than 835 86 



for blood cell adherence. (Use only 



Symbol 7 [or 8, 9, A, or C] with Symbol 



835.) 861 



836 Phagocytic activity of cells 87 



837 Precipitation by the production of 



precipitin by cells 



838 Osmotic pressure of the cell 



83 9 Spreading factor 



83A Birefringence of protoplasm 



83B X-ray diffraction of protoplasm 



83C Opacity of protoplasm 



83E Reactivation of cells (after inactivation, 871 



by irradiation, e. g. ) 

 83E1 Photoreactivation (recovery [from 1171 



irradiation damage] by exposure to 1154 



white light) 



84 Membrane character; membrane activity. 1155 



(If the membrane is of a tissue or cell 872 



of a multicellular test organism, specify 



the Ussue in Field I. ) 8721 



841 Surface activity of membranes 8722 



842 Permeability. (Use Symbol 842 when the 873 



character of the membrane's permeability 8731 



Is demonstrated to have been altered by 8732 



the test compound. When the test 8733 



compound effect is observed to be 8734 



selectively on the passage of a partic- 8735 



ular secondary compound across the 874 



membrane, the effect should be coded 87 5 



by use of Symbol FG-- rather than Sym- 

 bol 842. ) 



Bioelectric (resting) potential 



Cytolysis. (Use Symbol 844 to code 

 hemolysis, with red blood cell coded 

 in Field H-1. ) 



Karyolysis; karyorrhexis 



Pyknosis 



Blood cells, unspecified. (Use only 

 Symbol 851, 852, etc., for specific 

 qualities of blood cells. Symbol 85 

 Itself has no particular use. ) 



Normal number of blood cells. (Use 

 Symbol 851 for the normal blood cell 

 number which may be affected by the 

 test compound. Use Symbol 853 for 

 any decreased number of blood cells, 

 which condition may be relieved or 

 exacerbated by the test compound. ) 



Normal proportion of blood cells. (Use 

 Symbol 852 only with Symbol 6 of 

 Field T-1. ) 



Anemia, unspecified as to being a de- 

 crease in blood cells, or a decrease 

 in hemoglobin, or both. 



Pallor of anemia 



Blood cell adherence (exclusive of 

 thrombosis, embolism, and clotting) 



Rouleaux formation 



Blood cell clumping; blood sludging 



Blood cell fragility 



Cell-plasma ratio of blood, hematocrit. 

 (Use Symbol 86 only with Symbol 6 of 

 Field T-1. ) 



Sedimentation rate 



Blood, plasma, body fluid; state and 

 activity of fluid tissues, unspecified. 

 This symbol is not intended so much 

 for use in coding as it is intended as 

 a heading for a category of symbols. 

 For example, for decrease in blood, 

 use Symbol 871; for effects on blood 

 clotting, use Symbol 87 3, etc. 



Decrease in blood volume; hemorrhage; 

 bleeding; diminished blood volume 



Hemorrhagic shock 



Collapse (associated with depression 

 and circulatory failure) 



Syncope 



Abnormal extravascular accumulation of 

 body fluid, unspecified 



Edema, unspecified; dropsy, unspecified 



Ascites 



Clotting processes, unspecified 



Prothrombin time 



Clotting Ume 



Thrombosis 



Embolism 



Bleeding time 



Cyanosis 



Dehydration 



154 



