The Allen Test for Blood Flow - Physiopedia
...In Allen's original test, both hands were tested simultaneously by the examiner compressing one artery of each hand at the same time. The MAT efficiently evaluates the adequacy of the collateral circulation but requires the testing of one hand at a time....
https://www.physio-pedia.com/The_Allen_Test_for_Blood_Flow
Allen's test - Wikipedia
...In medicine, Allen's test or the Allen test is a medical sign used in physical examination of arterial blood flow to the hands. It was named for Edgar Van Nuys Allen, who described the original version of the test in 1942....
https://en.m.wikipedia.org/wiki/Allen%27s_test
Allen Test for Blood Flow: Purpose, Procedure, & Results Explained - WebMD
...An Allen test is a simple way to check how well blood flows through your hands. Find out why you may need the test, how it?s done, and what the results mean....
https://www.webmd.com/a-to-z-guides/allen-test-overview
Allen Test | How to Perform| Interpretation of Results
...Allen?s test or Allen test (AT) is a simple non-invasive method for assessing the perfusion and patency of the arteries (i.e., radial and ulnar artery) that supply blood to the hand....
https://nurseship.com/allen-test/
Arterial Blood Gas (ABG) Sampling - OSCE Checklist
...If the return of colour takes longer, this suggests poor collateral blood supply. To complete the procedure......
https://geekymedics.com/wp-content/uploads/2025/02/Arterial-Blood-Gas-ABG-Sampling-OSCE-Checklist-Geeky-Medics.pdf
Microsoft Word - Arterial Blood Gas- Clinical Skills Guide Final.doc
...Arterial blood gas sampling can be very painful for patients. The level of discomfort can be reduced by infiltrating local anaesthetic around the sampling site....
https://www.gla.ac.uk/media/Media_887969_smxx.pdf
Arterial Blood Gas Sample ? LITFL ? CCC
...If the Allen test is negative it is safe to harvest the radial artery. If it is positive further examinations are needed to ensure safe harvesting of the radial artery [Reference]...
https://litfl.com/arterial-blood-gas-sample/
What Is the Allen Test? Its Purpose, Procedure, and Results
...The Allen Test is routinely performed before medical procedures that might affect the radial artery. One common application is prior to drawing arterial blood for an arterial blood gas (ABG) analysis....
https://biologyinsights.com/what-is-the-allen-test-its-purpose-procedure-and-results/
How to Perform a Modified Allen Test: Step-by-Step (2025)
...Learn how to perform the modified Allen test to ensure arterial patency and bilateral circulation to the hand before medical procedures....
https://www.respiratorytherapyzone.com/modified-allen-test/
Modified Allen Test Steps - Registered Nurse RN
...The modified Allen test is performed before collecting an arterial blood gas (ABG) on the radial artery. An arterial blood gas, sometimes referred to as an ABG, is a blood test collected from an artery that assesses the oxygenation and acid-base balance of a patient....
https://www.registerednursern.com/modified-allen-test-steps/