Accession Number : AD0713832

Title :   NORMAL RANGE OF BLOOD SURFACE TENSION OF MEN.

Descriptive Note : Final rept. May-Nov 69,

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Personal Author(s) : Rodriguez,Leopoldo L. ; Leeber,Donald A.

Report Date : SEP 1970

Pagination or Media Count : 9

Abstract : The determination of surface tension of blood from male subjects was investigated for its relationship to susceptibility to decompression sickness. The use of an anticoagulant, protamine sulfate, solved the problem of duplicate measurements (S.D. 0.5 dyne cm./1). Venous blood samples were collected from 22 men 3 times a day for 3 days a week for 2 weeks. Hematocrit determinations were also made on the last 10 subjects. The age of each subject was recorded but, like the hematocrit, no relationship was found between age and surface tension. The day mean, based on all the subjects for 2 weeks, ranged from 56.9 to 64.9 dynes cm./1 and was not influenced by time of day. (Author)

Descriptors :   (*BLOOD, INTERFACIAL TENSION), (*DECOMPRESSION SICKNESS, BLOOD), HUMANS, MALES, PERIODIC VARIATIONS, PHYSIOLOGY, HEMATOLOGY

Subject Categories : Anatomy and Physiology
      Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE