An elderly person is scheduled for a CT scan with and without contrast dye. Which action should be performed prior to this CT scan?

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Prior to a CT scan with contrast dye, it is important to monitor renal functioning because the dye is excreted by the kidneys and can cause damage to the kidneys in those with impaired renal function. This can be done through blood tests to measure creatinine levels and assessing urinary output. It is also important to obtain a thorough medical history to assess for any allergies or previous reactions to contrast dye. Measuring weight and assessing vital signs may be important for other aspects of care, but are not specifically related to preparing for a CT scan with contrast dye. Keeping the person NBM (nothing by mouth) may be necessary if sedation is required for the procedure, but is not a universal requirement for a CT scan with contrast dye.

An Elderly Person Is Scheduled for a CT Scan with and Without