Introduction To Capillary Blood Collection

Introduction to capillary blood collection

Capillary blood collection method is often tested by examiners to the knowledge point, medical education network collated the relevant content is as follows:

Adults often take blood from their fingers or earlobes. The pain of earlobe blood collection is light, easy to operate, and suitable for fat collection, especially for those with thick finger skin. However, the peripheral blood circulation of earlobe is poor, blood cells are easy to stagnation, and the examination results are not constant. The results of red blood cell, white blood cell, hemoglobin and erythrocyte ratio were higher than those of venous blood, especially in winter. Finger blood collection is easy to operate. Can get more blood volume. Infants with too small fingers can use thumb or heel blood collection. When collecting and collating patients with severe burns through medical education/education network, blood can be collected from intact skin. It is better to use three-edge needle or special "blood needle" for blood collection device, especially the latter is conducive to the quality control of blood collection technology. In order to avoid crossing over, one needle per person should be strictly implemented. Attention should be paid to the appropriate depth of puncture, and do not squeeze hard, so as to avoid mixing with tissue fluid and affecting the test results.

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