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A Simple Method to Obtain Venous Blood Samples from Premature and Newborn Infants

AMA Am J Dis Child. 1957;94(1):31-32. doi:10.1001/archpedi.1957.04030020033007.
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Obtaining venous blood samples from premature and small infants by the usual methods using the external jugular, the internal jugular, the femoral, or other peripheral veins most of the times is difficult and not without risk. We faced this difficulty at the start of our studies on blood coagulation in the newborn1 and in the premature.2 This led us to search for a modification of available procedures which would eliminate some of the existent difficulties. A modification of the Gardner-Murphy technique 3 adapted for drawing venous blood samples was investigated and after suitable changes found very satisfactory. Up to now more than 300 samples have been obtained from newborn and premature infants with this procedure which has been found simple and safe.

Material (Fig. 1)

  1. Test tube graduated up to 5 ml.

  2. Rubber plug to be adapted to the test tube.

  3. Thirteen-gauge needle.

  4. Polyethylene catheter


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