The Nurse Is Assessing a Patient After a Mastectomy and Thinks

The nurse is assessing a patient after a mastectomy and thinks the patient's affected arm appears swollen. What is the best way to verify this finding?

A) Measure and document the circumference of the arm.
B) Ask the patient to hang the arm down for 3 minutes and check for increased swelling.
C) Press a finger into the arm and measure the indentation.
D) Measure and compare the circumferences of both arms.