Positive beam arm test

Introduction The beam arm test is also known as the capillary resistance test, or the capillary fragility test. When the structure and function of the capillary wall, the number and quality of platelets are defective, or the vitamin C and P are deficient in the body, or the blood vessels are damaged by physical and chemical factors and microbial factors, the integrity of the capillary wall will be destroyed, and its brittleness and permeability will be impaired. Increased, new bleeding points increased, and thus the beam arm test was positive. When toxic or drug allergies occur, the integrity of the capillaries is destroyed, and the brittleness or permeability is increased, and the beam arm test is positive.

Cause

When the structure and function of the capillary wall, the number and quality of platelets are defective, or the vitamin C and P are deficient in the body, or the blood vessels are damaged by physical and chemical factors and microbial factors, the integrity of the capillary wall will be destroyed, and its brittleness and permeability will be impaired. Increased, new bleeding points increased, and thus the beam arm test was positive. When toxic or drug allergies occur, the integrity of the capillaries is destroyed, and the brittleness or permeability is increased, and the beam arm test is positive.

an examination

Related inspection

Blood pressure blood test

4cm in the elbow bend of the forearm, draw a circle with a diameter of 5cm, use the sphygmomanometer cuff to bundle the upper arm, first measure the blood pressure, then keep the blood pressure between systolic and diastolic pressure for 8 minutes, then lift Pressure, after the skin color returns to normal, count the number of new bleeding points in the circle. The normal new bleeding point is below 10. Capillary fragility, allergic purpura, vitamin P or C deficiency, increased capillary fragility, more than 10 new bleeding points, said the beam arm test is positive.

Differential diagnosis

When the beam arm test is positive, pay attention to the cause of the identification. For example, if the structure and function of the capillary wall, the number and quality of platelets are defective, or the vitamin C and P deficiency in the body, or the blood vessels are damaged by physicochemical or microbial factors, the integrity of the capillary wall will be destroyed, and its brittleness and permeability will be impaired. Increased by a variety of situations.

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