A 56-year-old female patient is brought to the emergency dep…

A 56-year-old female patient is brought to the emergency department by her family due to a sudden onset of severe headache, nausea, and acute confusion. She recently suffered a head injury from a fall a week ago. Her vital signs are stable, but lab results reveal a serum sodium level of 118 mEq/L. Based on these findings, the nurse should anticipate the need for which diagnostic test?

A 42-year-old male patient with a suspected pituitary adenom…

A 42-year-old male patient with a suspected pituitary adenoma is scheduled for a CT scan with contrast media. He has a history of hypertension, type 2 diabetes, and is allergic to shrimp. He is currently taking metformin and lisinopril. Which information is most important for the nurse to communicate to the health care provider before the test?