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Ch 14 Study Guide

Arterial Puncture Procedures

QuestionAnswer
Primary reason to draw arterial blood is to obtain ABG specimens
ABGs are evaluated to measure respiratory function
Collateral circulation primary site for collection, done with portable ultrasound machine or modified allen test
in the MAF, which artery is released ulnar
Radial artery is the 1st choice b/c ease of access and there is normally collateral circulation
Brachial artery is the 2nd choice, less painful, but harder to puncture + deeper
Femoral artery is only drawn by a physician
The patient must be in what state prior to drawing steady state for 20-30 minutes
Isopropanol is the typical antiseptic prior to draw
A 22-gauge 1 inch needle is typically used for an ABG
A 22-gauge 1 1/2 inch needle is used for a femoral ABG
Gauges can range from 20-25
What angle is used to draw from a radial/brachial artery? Femoral artery? 40-45%, 90%
What can be injected at the site prior to draw topical local anesthetic
ABG specimens should be transported and analyzed immediately
Plastic heparinized syringe can be used and stay at room temp for 30 mins, if pt has elevated leukocyte or platelet count, specimen should be analyzed within 5 minutes or drawn in a heparinized glass syringe
ABGs continue to metabolize, produce acids and CO2 so, they must be drawn and handled in an aerobic manner
Arteriospasm is the most common arterial puncture complication, even if performed correctly
Created by: user-2043425
 

 



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