Limb motor examination   Mnemonic: O bserve  T he  P atient  R eally  F 'ing  C arefully. O bservation,  T one,  P ower,  R eflexes,  F unction,  C o-ordination. Observation Inspect carefully and for a good amount of time, moving around and crouching to make sure you properly look, including under feet and/or on both sides of hands (turn them over). Look for SWIFT: S carring, and ask if there's any you can't see. W asting I nvoluntary movements. F asciculations: take time, look in plane. T remor Upper limb: Ask if left or right handed. Pronator drift: have them extend arms palms up, eyes closed. If there is an UMN lesion, contralateral pronation is stronger, causing pronation ± drift. If there is a cerebellar lesion, the contralateral arm may drift upwards. Limb rebound: have them push their outstretched, upturned palms against your straight arm. If there is a cerebellar hemisphere lesion, the ipsilateral arm will jump up when ...