VENIPUNCTURE
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order of draw (color, additive, inversion)
yellow: blood culture,8-10 light blue: citrate/coagulation studies, 3-4 red: no additive, 5 green: sodium heparin, 8-10 lavender: edta, 8-10 gray: sodium oxalate, 8-10
the tourniquet must be applied how many inches above the venipuncture site?
3-4 inches above
tourniquet must not be left in the arm for how many minute/s?
1 minute
what will happen if the tourniquet is left on the arm for too long?
hemoconcentration
tube with additives will take how long for the blood to clot
30-60mins
what is the purpose of clot activators
accelerate clotting process
what top is commonly used in serum chemistry
gold top
anticoagulant tops
lavender citrate oxalate
needed for clotting by forming insoluble calcium salts
calcium
binds to thrombin in the plasma
heparin
inhibits glucose metabolism by blood cells
sodium flouride
what guage needle size is commonly used in adults
21G
what is the range guage of the two-way needle when drawing blood
19-23
what are the 3 methods in venipuncture
syringe method vacuum method winged/butterfly method
3 possible sources when collecting blood
venous blood capillary blood arterial blood
3 selection of veins
median cubital vein cephalic vein basilic vein
why basilic vein is avoided
it is near the brachial artery/ there is an artery close to it
sites to be avoided when doing venipuncture
burns scars tattoos edematous patient hematoma
medical term for breast removal
masectomy
lymphatic system is stagnant thus prone to infection
lymphostasis
this is when double masectomy is done
lymphocytosis
clean the venipuncture site with?
70% isopropyl alcohol
what color is the sharps container
red
most common injury in the lab
needle stick injury