The Allen Test for Blood Flow: Difference between revisions
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== Definition/Description == | == Definition/Description == | ||
The Allen test is a worldwide used test to determine whether the patency of the radial or ulnar artery is normal. It is performed prior to radial cannulation or catheterisation, because placement of such a catheter often results in thrombosis. Therefore the test is used to reduce the risk of ischemia to the hand. The Allen test can also be used to gather information preceding removal of the radial artery for a coronary bypass graft. <br>A positive Allen’s test means that the patient does not have dual blood supply to the hand, which is a negative indication for catheterisation or removal of the radial arterie. <br>There is also a digital Allen’s test, which is used to assess the arterial supply to the fingers.<br>In the physiotherapy he’s often used as a diagnostic instrument for the thoracic outlet syndrome.<br><br> | |||
== Clinically Relevant Anatomy == | == Clinically Relevant Anatomy == | ||
Revision as of 19:47, 28 June 2011
Original Editors - Alexander Ghyssels
Lead Editors - Your name will be added here if you are a lead editor on this page. Read more.
Search Strategy[edit | edit source]
Following databases were searched: PubMed, Google Scholar and Web of Knowledge.
Useful information was found by combining these different keywords: Allen’s test, collateral blood supply to the hand, radial artery thoracic outlet syndrome and diagnostic physiotherapy.
Definition/Description[edit | edit source]
The Allen test is a worldwide used test to determine whether the patency of the radial or ulnar artery is normal. It is performed prior to radial cannulation or catheterisation, because placement of such a catheter often results in thrombosis. Therefore the test is used to reduce the risk of ischemia to the hand. The Allen test can also be used to gather information preceding removal of the radial artery for a coronary bypass graft.
A positive Allen’s test means that the patient does not have dual blood supply to the hand, which is a negative indication for catheterisation or removal of the radial arterie.
There is also a digital Allen’s test, which is used to assess the arterial supply to the fingers.
In the physiotherapy he’s often used as a diagnostic instrument for the thoracic outlet syndrome.
Clinically Relevant Anatomy[edit | edit source]
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Epidemiology /Etiology[edit | edit source]
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Characteristics/Clinical Presentation[edit | edit source]
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Examination[edit | edit source]
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Physical Therapy Management
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Recent Related Research (from Pubmed)[edit | edit source]
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References[edit | edit source]
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