http://nationalnursingreview.com Tue, 22 May 2012 13:59:42 +0000 en hourly 1 http://wordpress.org/?v=3.3.2 http://nationalnursingreview.com/2008/08/blood-sample/ http://nationalnursingreview.com/2008/08/blood-sample/#comments Wed, 20 Aug 2008 12:28:37 +0000 admin http://nationalnursingreview.com/?p=98

Use of tubes or syringes or wet clean.

Inappropriate use of anticoagulants or wrong proportion.

Ligature placement for a very long time before the puncture.

Perforation of the deep vein with the formation of a hematoma and subsequent tissue injury, which by producing histic input factors in the blood can dilute the sample and also accelerate the process of blood clotting.

Removing blood clot too slowly with part of the blood in the syringe or collection tube.

Introduction of the blood collection tube for emptying the syringe under pressure and with the needle attached, which facilitates the formation of foam and the onset of hemolysis.

Excessive agitation of the mixture blood – anticoagulant foaming (hemolysis) or insufficient agitation with microclots appearance.

Patient identification errors when performing the sampling.

Insufficient filling of the tubes that contain a certain proportion of anticoagulant.

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