Can You Wear Makeup During A Ct Scan?

A computerised tomography (CT) scan uses X-rays and a estimator to create detailed images of the inside of the body.

CT scans are sometimes referred to as Cat scans or computed tomography scans.

They're carried out in hospital by specially trained operators called radiographers, and can be done while you're staying in hospital or during a short visit.

When CT scans are used

CT scans can produce detailed images of many structures inside the body, including the internal organs, blood vessels and bones.

They tin be used to:

diagnose conditions – including damage to bones, injuries to internal organs, problems with blood flow, stroke, and cancer
guide further tests or treatments – for example, CT scans can help decide the location, size and shape of a neoplasm before having radiotherapy, or allow a doctor to have a needle biopsy (where a pocket-sized tissue sample is removed using a needle) or bleed an abscess
monitor conditions – including checking the size of tumours during and afterwards cancer treatment

CT scans wouldn't normally be used to check for issues if you don't have any symptoms (known as screening).

This is because the benefits of screening may not outweigh the risks, particularly if it leads to unnecessary testing and anxiety.

Preparing for a CT browse

Your appointment letter will mention anything you demand to do to set up for your scan.

You may be advised to avoid eating anything for several hours before your appointment to help brand sure clear images are taken.

You should contact the hospital after receiving your appointment letter if y'all take any allergies or kidney problems, or if you're taking medication for diabetes, as special arrangements may need to exist made.

Yous should also permit the hospital know if y'all're pregnant. CT scans aren't normally recommended for pregnant women unless information technology's an emergency, as in that location's a small chance the X-rays could harm your baby.

It's a good thought to wear loose, comfortable dress as yous may be able to habiliment these during the scan.

Try to avoid wearing jewellery and dress containing metal (such as zips), as these will need to be removed.

Before having a CT scan

Before having the scan, y'all may be given a special dye chosen a contrast to aid improve the quality of the images.

This may be swallowed in the course of a drink, passed into your bottom (enema), or injected into a blood vessel.

Tell the radiographer if you experience anxious or claustrophobic about having the scan.

They can requite you communication to assist you feel at-home and can arrange for y'all to have a sedative (medication to help you relax) if necessary.

Before the scan starts, yous may be asked to remove your clothing and put on a gown.

You'll likewise exist asked to remove annihilation metallic, such equally jewellery, equally metal interferes with the scanning equipment.

What happens during a CT scan

Image of a person about to have a CT scan

During the scan, you'll commonly lie on your back on a apartment bed that passes into the CT scanner.

The scanner consists of a ring that rotates around a pocket-sized department of your body as you laissez passer through information technology.

Unlike an MRI browse, the scanner doesn't surround your whole body at once, so yous shouldn't feel claustrophobic.

The radiographer will operate the scanner from the adjacent room. While the browse is taking place, y'all'll be able to hear and speak to them through an intercom.

While each scan is taken, you lot'll need to lie very even so and breathe normally. This ensures that the scan images aren't blurred.

Y'all may be asked to breathe in, breathe out, or hold your breath at certain points.

The scan will usually take around 10 to 20 minutes.

What happens afterwards

You shouldn't experience any after-effects from a CT browse and can commonly get dwelling house soon afterwards. You can eat and potable, go to work and bulldoze equally normal.

If a contrast was used, y'all may be advised to wait in the hospital for upward to an hour to make certain you lot don't have a reaction to it.

The contrast is ordinarily completely harmless and will pass out of your body in your urine.

Your scan results won't usually exist bachelor immediately. A computer volition need to process the data from your browse, which will so be analysed by a radiologist (a specialist in interpreting images of the trunk).

After analysing the images, the radiologist will write a report and send information technology to the medico who referred you for the scan so they can hash out the results with you. This normally takes a few days or weeks.

Safety of CT scans

CT scans are quick, painless and generally safe. But there's a small risk yous could accept an allergic reaction to the dissimilarity dye used and y'all'll be exposed to 10-ray radiation.

The amount of radiations y'all're exposed to during a CT browse varies, depending on how much of your body is scanned.

CT scanners are designed to brand sure you're not exposed to unnecessarily loftier levels.

Generally, the amount of radiation you're exposed to during each scan is equivalent to between a few months and a few years of exposure to natural radiations from the environment.

It's thought exposure to radiation during CT scans could slightly increase your chances of developing cancer many years later on, although this chance is thought to exist very minor (less than 1 in 2,000).

For more information, read GOV.U.k.: patient dose information.

The benefits and risks of having a CT scan volition always be weighed up before it's recommended.

Talk to your medico or radiographer about the potential risks beforehand if you lot have any concerns.

Page final reviewed: 18 August 2021
Next review due: 18 Baronial 2024