Blood ptosis : a test of vasomotor efficiency / by C. Ward Crampton.

  • C. Ward Crampton
Date:
[1913?]
Catalogue details

Licence: Public Domain Mark

Credit: Blood ptosis : a test of vasomotor efficiency / by C. Ward Crampton. Source: Wellcome Collection.

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    The technic of the test is as follows: The sphygmomanometer is adjusted over the brachial artery and the patient is placed on a com- fortable couch with a low pillow. The heart state is counted by quarter minutes and a gradually de- creasing rate is usually observed. Counting should continue until two successive quarter minutes are the same, this is multiplied by four and recorded. The systolic pressure is then taken preferably by auscultation. The patient stands, the heart rate is counted as before until it reaches the “standing normal,” when it is recorded, and the blood pressure is then taken, Ihe differences are: calculated. and reference is made to the scale. For example—Case XX: L. V., age seventeen years, said to be in good condition at 11:20 a. m. Pulse rate. Blood pressure. BRST 7-01 02s pei nee eee nae i 68 100 Ni eee eee 104 94 Diimenenee 62 aai.cs kaa eee +36 —6 Percentage record 20 This is a very poor record taken from an appar- ently normal strong young football player of ex- ceptional ability who had previously given records above 80. 7 I was at a loss to account for this, for question- ing failed to bring out any history of loss of sleep, dissipation, or illness. He looked quite as “fit” as usual. He was absent next day, and remained home for a week with a “cold and fever.” It is evident that the test revealed a weakened vasotone, the beginning of actual illness before any other symptom could be noted. Others who have used this test have noted similar cases. This test has been used to follow athletes through a course of training and as the basis for choice for the entry of one of several athletes of equal ability in an important race where only one might com- pete. It has been used to guide the daily exercise of athletes to guard against overwork and ap- proaching staleness. It has been found useful in
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