To conduct the hand flip test, the patient is asked to rapidly alternate their hands from palm-up to palm-down positions on their thighs. Ideally, this should be performed quickly and smoothly ...

Wrist flexion: Holding a weight in one hand, palm up, sit on the floor with your forearm resting on a bench. Flex your wrist so the palm of your hand comes toward your forearm.

Begin by resting your hand, palm up, on a surface with a towel underneath for cushion. Make small, gentle circular movements using your other hand’s index and middle fingers on your wrist.

Stretch your palm and keep it still for a while. If the fingers turn darker in color than the palm, or show purple, it may be a sign of serious pathogenic cold.