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FIG. 8-3  Tests for hypocalcemia. A, Chvostek’s sign is contraction of facial muscles in
                          response to a light tap over the facial nerve in front of the ear. B, Trousseau’s sign is a
                         carpal spasm induced by inflating a blood pressure cuff (C) above the systolic pressure for
                                                       a few minutes.



               Table 8-6

               Assessment Findings: Hypomagnesemia and Hypermagnesemia










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