Apr 5, 2024 · 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.

Dec 28, 2023 · A positive Allen test means the ulnar artery is capable of adequately perfusing the hand even without the radial artery’s circulation. So, in case of injury to the radial artery due to a procedure …

If the capillary refill time is less than 6 seconds the test is considered positive. A negative Allen test suggests inadequate dual blood supply to the hand. [6] The test is then completed with the radial …

Aug 16, 2025 · Interpreting the Allen Test involves observing the speed at which color returns to the hand after releasing arterial compression. A normal or positive result occurs when the hand regains …

A positive Allen Test shows that the patient does not have a dual blood supply to the hand, which is a negative indication for catheterisation or removal of the radial arteries.

Allen's Test is a clinical examination used to assess the patency of the radial and ulnar arteries and the adequacy of collateral blood flow to the hand. It helps identify compromised circulation before …

Sep 26, 2025 · A positive Allen test means that the patient may have an adequate dual blood supply to the hand (Normal filling time). A negative Allen test shows the patient may not have adequate dual …

Nov 15, 2025 · Refill time >6 seconds is considered a positive test, indicating inadequate collateral flow. The authors report using the technique in over 600 cases with no post-op vascular insufficiency …

The Allen test checks if your hand can still get enough blood from the ulnar artery and nearby vessels if the radial artery gets blocked. If the test is positive, it means you probably have a good back-up …

Oct 2, 2025 · A procedure called the Allen test can be used to find out if blood flow to your hand is normal. This test checks to see if both of these blood vessels are open and working correctly.