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Is radiofrequency vein ablation risky?

I will have radiofrequency vein ablation. Is radiofrequency vein ablation risky?

Is a CT scan with dye painful?

I will have a liver CT scan with dye. Is a CT scan with dye painful?

Do they use dye for lung CT scans?

I will have a lung CT scan. Do they use dye for lung CT scans?

Tablets given before cat scan?

I was given 2 tablets to swallow before my head cat scan, and 2 tablets to take later that evening. What are they?

How long does a thyroid CT scan with contrast take?

I will have a thyroid CT scan with dye. How long does a thyroid CT scan with contrast take?

How long does CT scan of kidney take?

I will have a kidney CT scan. How long does a CT scan of the kidney take?

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