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Comment on this procedure
* Management and care of Central Venous Catheters (CVC) may only be undertaken by registered nurses accredited to give intravenous medication
* Procedure should be cared out under strict asepsis.
* To have a uniformed approach to drawing blood from a Central Venous Catheters by trained nursing staff.
* The Central Venous Catheters is not an ideal site for drawing blood samples but may be used in conditions where other access is not available.
* Caution is to be taken when aspirating blood samples from the Central Venous Catheters not to haemolysis sample.
* Rapid withdrawal can create a vacuum which may damage/ collapse catheter or blood vessel.
* Caution is to be taken not to contaminate blood sample with solution infusing through other ports.
* Proximal port on the Central Venous Catheter should be designated for drawing blood and kept Heparinized for this reason.
OUTCOMES:
* The patient will experience no infection through contamination of the Central Venous Catheters during his/ her stay at LBH.
* Blood samples drawn from the Central Venous Catheters will not be contaminated by other solutions being infused through other ports of the same Central Venous Catheter.
* No damage will occur too either the blood vessels or the Central Venous Catheters through excessive force while drawing blood.
EQUIPMENT:
Equipment as for Heparinizing Central Venous Catheters
Eye protection
R : 30.1
Apron
Yellow Vacutainer Shield
Vacutainer luer lock
Appropriate blood collection tubes.
PROCEDURES :
* Explain procedure to patient prior to commencement.
* Aseptic preparation prior to commencing procedure.
* Maintain proper barrier protection to protect nurse against possible blood contamination; prepare dressing pack at patients bed side
* Place patient in supine position. Have patient turn head away from Central Venous Catheters site during procedure.
* Turn off infusion at least one minute prior to sampling.
* See Policy and Procedure for 'Heparin Lock for Central Venous Catheter Lines'
* After removing 5 mls of blood from CVC pigtail attached syringe and remove required amount of blood for blood test. Draw off blood for electrolytes and full blood counts prior to coagulation studies. If coagulation studies are the only tests required it may be necessary to draw up to 10 mls of blood for discard prior to drawing sample bloods.
* Re-heparinize CVC port following Policy and Procedure for 'Heparin Lock for Central Venous Catheter Lines' .
* Record date and time of procedure on flow chart.
* Note in patients chart procedure carried out and any problems noted during procedure.
R
REF: Arrow International, (12/ 94), Arrow Multi-Lumen Central Venous Catheter Care , Catheter Maintenance, Blood Sampling, pg. 105-111.
R : 30.2
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DRAWING BLOOD SAMPLES FROM A RADIAL/FEMORAL ARTERIAL LINES ON ADULT PATIENTS |
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