An adult woman with primary Raynaud phenomenon develops pallor and then cyanosis of her fingers. After warming her hands, the fingers turn red and the client reports a burning sensation. What action should the nurse take?
A. Apply a cool compress to the affected fingers for 20 minutes
B. Secure a pulse oximeter to monitor the client's oxygen saturation
C. Report the finding to the healthcare provider as soon as possible
D. Continue to monitor the fingers until color resumes to normal