Venepuncture ~ Basics and Troubleshooting, Vacutainer Colour codes in Blood sampling and tube types used
Venepuncture is the puncture of a vein as part of a medical procedure, typically to withdraw a blood sample or for an intravenous injection.
Veins to be used are:
• METACARPAL VEINS
• CEPHALIC VEIN
• BASILIC VEIN
• MEDIAN CUBITAL VEIN
Attributes of an ideal vein are:
Veins to be avoided:
Methods for improving venous access:
• Apply a tourniquet
• Lower the level of the arm below the heart
• Ask the patient to open and close their fist
• Light tapping / rubbing of the veins
• Relax the patient / consider the environment
• Warm up the patient’s hands
• DO NOT re-touch or palpate the vein once cleaned!!!
• The needle should form a 15 to 30 degree angle with the surface of the arm.
3. PROBLEMS OTHER THAN AN INCOMPLETE COLLECTION:
Haematoma/Bruising can be caused by:
• Tourniquet too tight / left on too long or use of RUBBER GLOVE!
• Arterial puncture
• Repeated insertion sites
If you stick yourself with a contaminated needle:
• Remove your gloves and dispose of them properly.
• Squeeze puncture site to promote bleeding.
• Wash the area well with soap and water.
• Record the patient's name and ID number.
• Follow your hospital protocol regarding treatment and follow-up.
Order Of Draw:
NOTE: NEVER FORCEFULLY EJECT THE COLLECTED BLOOD FROM THE SYRINGE INTO THE VACUUM TUBE.
Causes Of Hemolysis:
Vacutainer Colour codes in Blood sampling:
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