How to Prepare for a CT Scan

November 2, 2025 · 3 min read · Light Radiology Team · CT Scans

This guide outlines how to prepare for your CT scan, including what to wear, eating and drinking instructions, and information about contrast dye. Following these steps helps ensure accurate images and a smooth appointment.

New to CT? Read What Is a CT Scan and How Does It Work? for a simple overview before your appointment.

Check your referral

Your referral form or booking confirmation will specify whether your scan requires contrast. Preparation can differ depending on the type of CT ordered by your doctor.

Unsure why CT was requested? See Why Your Doctor Might Refer You for a CT Scan.

General preparation

Bring your referral, Medicare card, and any previous imaging if available.
Arrive 10–15 minutes before your appointment to complete forms.
Wear loose, comfortable clothing without metal zips, belts, or buttons.
Leave jewellery, watches, and piercings at home when possible.
Continue taking your usual medications unless instructed otherwise.

Fasting and hydration

If your scan uses contrast, avoid eating for 2–4 hours before your appointment.
Drink water to stay hydrated; clear fluids are usually fine.
If your scan does not use contrast, you can generally eat and drink normally.

Learn how contrast affects preparation in CT Scan with Contrast vs Without Contrast.

Patients with diabetes or kidney conditions

Tell us if you have diabetes or kidney problems. These conditions can affect how your body handles contrast dye.
If you take metformin, you may need to pause it temporarily after your scan. We will give specific instructions.
Bring a list of current medications with you.

Contrast injection preparation

For contrast scans, a small IV cannula will be placed in your arm.
Let staff know if you have had any reaction to iodine contrast before.
Inform us of asthma, allergies, thyroid disease, or if you are pregnant or breastfeeding.

For more on safety, read Are CT Scans Safe?

Pregnancy and children

If you are or might be pregnant, inform us before your scan. We will assess whether CT is necessary or suggest an alternative such as ultrasound or MRI.
For children, we tailor scanning protocols to keep radiation dose as low as possible.

On the day of your scan

Arrive a few minutes early to complete your questionnaire.
Remove metal items and change into a gown if required.
If contrast is used, you will have a brief consultation before the injection.
Relax and follow the radiographer’s instructions during the scan.

Curious what happens during the scan? Read What to Expect During a CT Scan.

After your scan

If you had contrast, drink extra water through the day to help flush it from your body.
You can eat, drink, and resume normal activities immediately unless told otherwise.
If you notice redness, swelling, or pain at the injection site, contact us or your GP.

Quick checklist

Referral and Medicare card ready
Loose, metal-free clothing
Follow fasting instructions if contrast is used
Drink water before and after
Arrive early to allow time for paperwork

In summary

Most CT scans require little preparation. Following these simple steps helps ensure clear images and a safe, efficient experience. If you are unsure about fasting, medications, or contrast, contact our team before your appointment.

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Medical disclaimer: This article is for educational purposes only and does not replace individual medical advice. Kamagra Oral Jelly is not TGA-approved in Australia and cannot be legally sold, supplied, or prescribed. Always consult a qualified doctor before taking any medication.

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Interest: What Is Kamagra Oral Jelly and Why Is It So Talked About?

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Kamagra Oral Jelly vs TGA-Approved Sildenafil (Viagra) in Australia
Criteria	Kamagra Oral Jelly	TGA-Approved Sildenafil
Active ingredient	Sildenafil citrate (unverified dose and purity)	Sildenafil citrate (strictly verified)
Onset of action	15–30 minutes (reported)	30–60 minutes
Form	Flavoured oral jelly sachet	Tablet
Legal status in Australia	Not TGA-approved; illegal to import, sell, or prescribe	Legal with prescription
Quality control	Uncertain; counterfeit risk is high	Strict TGA manufacturing standards
Need sexual stimulation	Yes	Yes
Cost	Low online, but risky	Affordable generic options; PBS-subsidised for some

Desire: The Real Reasons Men Over 30 Are Attracted to Kamagra

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Kamagra and Sports Performance

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Kamagra Headache Remedies

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Kamagra Trustpilot Reviews for Australia

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Kamagra and Alcohol: Is It Safe to Drink?

Alcohol is a nervous system depressant and can worsen erectile dysfunction. Mixing alcohol with sildenafil increases the risk of dizziness, low blood pressure, headache, and fainting. If you plan to use Kamagra or any sildenafil, the safest choice is to avoid alcohol completely. If you drink, limit yourself to one standard drink, hydrate well, and do not drive. Alcohol plus Kamagra may also reduce sensation and delay ejaculation, which can be frustrating for both partners.

Does Kamagra Cause an Erection Without Stimulation?

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Kamagra and Sunburn

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