The nurse questions which drug prescribed to a patient also receiving carbamazepine for psychomotor seizures?

The 5-year-old child is brought to the emergency department (ED) after a fall at school that has resulted in a broken wrist. The nurse notes the child is thin, with curved femurs and kyphosis. Metaphyseal fraying and cupping is noted on x-ray of the wrist. There is evidence of old fractures that healed poorly, as if they hadn’t been set properly. Upon review of the patient’s medical history, it does not appear that the patient has received ongoing well-child care. After laboratory evaluation, the child is diagnosed with rickets. The nurse prepares information on which medication for the family?

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. There is increased protein in the cerebrospinal fluid found after a lumbar puncture. The patient begins taking more shallow breaths and becomes confused. The patient is intubated and mechanically ventilated. Once the patient is stable, the nurse anticipates administering which medication?