What should a nurse instruct a patient to expect regarding urine color after undergoing fluorescein angiography?

After undergoing fluorescein angiography, it is expected that the patient's urine may appear bright green. This is due to the fluorescein dye that is injected during the procedure; fluorescein is known to give urine an orange or bright green tint as the body processes and excretes the dye. The appearance of bright green urine is a normal reaction and indicates that the dye is being eliminated from the body.

Fluorescein is a vivid dye, and its excretion can lead to noticeable changes in urine color, which assists healthcare providers in understanding whether the substance is being effectively processed. It's also a crucial point for patients to understand post-procedure, as they may be alarmed to see a significant change in urine color if they are not informed beforehand.

In contrast, options suggesting bright red urine or dark brown urine are not typical for fluorescein and might suggest other conditions or complications needing medical attention. Furthermore, colorless urine indicating no dye was used would not be accurate since an injection of dye was indeed performed.