ARTERIAL BLOOD GASES (A. B. G.)
What is the test?
Arterial blood gas analysis is an essential test in diagnosing and monitoring
patients with respiratory disorders. This test is performed on blood that is
obtained from the artery. A. B. G. test evaluates how well the lungs are
delivering oxygen to the blood and eliminating carbon dioxide, in addition to
this A. B. G.'s can give considerable information about acid-base disorders.
What preparation is needed?
It is necessary to wait at least 15-20 minutes before drawing the A. B. G. If
changes are being made or when starting or stopping oxygen therapy. Check
with your doctor and notify the therapist if you are taking any anticoagulation
therapy (such as routine aspirin or coumadin) before this test.
How is the test done?
The therapist will check your pulses at the artery site in which the gas will
be drawn. The site will be cleaned with an antiseptic solution and you will
experience some discomfort from the needle stick. After the specimen is
collected, the therapist will withdraw the needle and immediately apply firm
pressure for approximately 3-5 minutes. After this time the therapist will
check for bleeding and if none, will apply a gauze pad firmly over the site.
What can I expect after the test?
You may have some short term discomfort at the site. It is important to report
any bleeding, severe pain, numbness or tingling, any discoloration or signs of
impairment to your circulation ( such as blue finger tips ) to your doctor
immediately.
For more information contact the Respiratory Care Department at
315/470-7113.
