Which is the correct sequence of events when one is obtaining arterial blood from the radial artery of a patient?
1)Perform the modified Allen test.
2)Remove any air bubbles from the sample.
3)Apply direct pressure to the puncture site.
4)Clean the puncture site with a suitable antiseptic solution
5)Use a 23-gauge needle and a plastic syringe containing an anticoagulant.

Question

Quizplus · Accepted Answer

Collateral circulation must be ensured before the puncture by performing a modified Allen test.After the test shows sufficient collateral circulation,the site should be prepared for the puncture by cleaning with a suitable antiseptic solution.Blood samples should be obtained with a small-gauge needle (i.e.,23 to 25 gauge).After blood has been withdrawn and the needle removed,direct pressure should be applied to the puncture site to prevent the formation of a hematoma.Air bubbles should then be removed because their presence can produce erroneous measurements.

Which Is the Correct Sequence of Events When One Is