Radial artery puncture is a medical procedure performed to obtain a sample of arterial blood for gas analysis.[1] A needle is inserted into the radial artery and spontaneously fills with blood. The syringe is either prepacked with a small amount of heparin to prevent coagulation, or must be heparinised, by drawing up a small amount of heparin and squirting it out again.[citation needed]. The available evidence suggests that the use of local anaesthesia, prior to arterial puncture, does not reduce the perceived pain of the procedure.[2]
References
edit- ^ Collins, Kevin P.; Russian, Christopher J.; Gonzales, Joshua F. (2016). "Teaching Health Care Students the Radial Arterial Puncture Procedure". Journal of Allied Health. 45 (4): 283–288. ISSN 1945-404X. PMID 27915362. Retrieved 7 March 2021.
- ^ Wade, Ryckie G.; Crawfurd, Jim; Wade, Donna; Holland, Richard (November 2015). "Radial artery blood gas sampling: a randomized controlled trial of lidocaine local anesthesia: RCT of lidocaine for arterial puncture". Journal of Evidence-Based Medicine. 8 (4): 185–191. doi:10.1111/jebm.12177. PMID 26779697. S2CID 23384432.