The patient has experienced a subarachnoid hemorrhage. The nurse is vigilant for signs of which electrolyte imbalance?

The nurse is vigilant for which symptoms of a life-threatening complication of the woman's precipitous vaginal delivery?

The 23-year-old patient is brought to the emergency department after contacting emergency services to report profound weakness that started in his feet and worsened and spread cranially over the past few days. He reports severe diarrhea after a camping trip a week ago. Upon assessment, strength, sensation, and deep tendon reflexes are significantly reduced, with the lower extremities more severely affected than his upper extremities. Vital signs are normal and the patient seems to be breathing well. The nurse anticipates which finding on the lumbar puncture result?