Which test involves holding palms outwards to check for movement or rotation?

The test that involves holding palms outwards to assess for movement or rotation is known as the Pronator Drift. During this examination, a patient is asked to extend both arms forward with the palms facing up. If there is neurological impairment, the patient may experience weakness or drift of one arm downward, or the palm may turn to face downwards, indicating possible issues with motor function or coordination related to the central nervous system.

In contrast, the Heel to Shin Test is used to evaluate coordination and involves the patient sliding their heel down their opposite shin, checking for smooth and accurate movement. Romberg's Test assesses balance and proprioception by having the patient stand with feet together and eyes closed, looking for swaying or loss of balance. Dysmetria refers to the inability to control the distance of movements, typically observed in conditions like cerebellar dysfunction, but it is not a specific test that involves the arm position described in the question.