The nurse is using Chvostek sign to assess for hypocalcemia. Which statement correctly describes this test?

A. Inflating a blood pressure cuff around the upper arm for several minutes is used to elicit Trousseau's sign, not Chvostek's sign. B. Applying pressure over the ulnar and radial arteries does not assess hypocalcemia and is not part of any standard neuromuscular excitability test. C. Forceful dorsiflexion of the ankle with the knee extended is not related to Chvostek's sign and does not test for hypocalcemia. D. Chvostek’s sign is elicited by tapping the facial nerve just below and in front of the ear. A positive response causes twitching of the facial muscles, indicating neuromuscular excitability due to hypocalcemia.