Final answer:
The most appropriate intervention for a patient in stage 4 of Brunnstrom's stages of recovery with spasticity in the right side affected by a left CVA is perform lift pattern with the left arm leading.
Step-by-step explanation:
The most appropriate intervention for a patient in stage 4 of Brunnstrom's stages of recovery with spasticity in the right side affected by a left CVA is perform lift pattern with the left arm leading.
In stage 4, the patient begins to regain control over their affected limb and can perform voluntary movements. By performing a lift pattern with the left arm leading, it encourages the activation and movement of the affected right side.
This intervention promotes the development of motor control, coordination, and strength in the affected limb.