[citation needed] To perform the test (also named Osler maneuver), one first inflates the blood pressure cuff above systolic pressure to obliterate the radial pulse.
One then attempts to palpate the radial artery, a positive test is if it remains palpable as a firm "tube".
[citation needed] It occurs frequently in the elderly irrespective of them being hypertensive, and has moderate to modest intraobserver and interobserver agreement.
Osler sign occurs due to Monckeberg's sclerosis of arteries.
Clinically, pseudohypertension should be considered once one develops dizziness without lowering blood pressure after he/she starts or escalates antihypertensive agents.