The Patient Is Unstable, So the Nurse Is Using an Electronic

The patient is unstable, so the nurse is using an electronic blood pressure device to measure blood pressures every 15 minutes.What should the nurse do to verify the accuracy of the electronic blood pressure measurements?

A) Check when the device was last calibrated.
B) Know that the device adheres to current medical industry standards.
C) Take a manual blood pressure within several minutes of the electronic reading.
D) Verify that the systolic pressure is within 20% of patient baseline.