Venipuncture & Peripheral IV Insertion. By Prof. Unn Hidle & Prof. Pat Dillon Updated Spring, 2010. Available on Blackboard: Professor Hidle’s skills videos 1) Intravenous cannulization 2) Venous access. Clinical indications. Venipuncture : Blood tests Monitoring blood levels
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Prof. Unn Hidle & Prof. Pat Dillon
Updated Spring, 2010
The site chosen for venipuncture varies with the client’s age, the length of time the infusion is to run, the type of solution used, and the condition of veins.
In general, for adults, veins in the hand and are commonly used, while for infants, veins in the scalp and dorsal foot veins may be used.
Larger veins are preferred for infusion that need to be given rapidly and for solution that could be irritating.
Posey IV Shield
1. IF AN INCOMPLETE COLLECTION OR NO BLOOD IS OBTAINED:
The needle should form a 15 to 30 degree angle with the surface of the arm
Adjust the angle (the bevel may be against the vein wall).
Change the position of the needle. Move it forward (it may not be in the lumen).
or move it backward (it may have penetrated too far).
3. OTHER PROBLEMS
2. IF BLOOD STOPS FLOWING INTO THE TUBE:
The vein may have collapsed; re-secure the tourniquet to increase venous filling; if not effective – REMOVE !
ALSO, the needle may have pulled out of the vein when switching tubes. Hold equipment firmly when changing tubes!
The blood is bright red &/or pulsating (arterial) rather than venous. Apply firm pressure for more than 5 minutes.
citrates, ethylenediaminetetra acetic acid (EDTA), and heparin.
speciment bottles before any other blood
Tubes with additives must be thoroughly mixed (Tip upside down and back). Erroneous test results may be obtained when the blood is not thoroughly mixed with the additive.