PET-CT: Your role as the attendant
What the Attendant Can — and Cannot Do During the Scan
When your family member has a PET-CT scan, you will not be able to go into the scanning area with them. This page explains the reason — it is a radiation-protection rule — where you wait, and what you can do to help before and after.
Medically reviewed by Dr. T. Raghavender Reddy, Medical Oncologist, MBBS · DM (Medical Oncology) · MD (Radiation Oncology) · Last reviewed September 2026
- You cannot enter the scanning room — This is a radiation-protection rule, not a clinical decision or a comment on the patient's condition.
- You wait close by, not in a different building — The attendant waiting area is near the scanning suite. You are not far away.
- The whole process takes several hours — Preparation, the tracer rest period, and the scan itself all add time. Bring something for yourself.
- Brief precautions apply after the scan too — The tracer clears slowly, so the team may ask for light contact limits in the hours after.
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You cannot go into the PET-CT scanning room. This is a radiation-protection rule — the same one that applies to the technicians — not a clinical decision or a comment on how the patient is doing. You wait in a designated area nearby and rejoin the patient as soon as the scan is complete.
At CION, a whole-body PET-CT starts from Rs 10,499 — among the lowest published prices in Hyderabad. Indicative price, as of September 2026.
Why can't the attendant go into the scanning room?
A PET-CT scan uses a small amount of a radioactive tracer to make cancer cells visible on the images. While that tracer is active in the patient's body, they emit a low level of radiation — which is why the area around the scanner is restricted.
The technician who runs the scanner also works from an adjacent room rather than standing beside the patient. The restriction covers everyone nearby, not just attendants.
You are not being kept away because of anything to do with the patient's condition. This rule applies the same way for every PET-CT scan, for every patient.
What you can do to help
- Arrive earlyRegistration and preparation take time. Arriving early reduces stress before the appointment begins.
- Help complete the preparation formThe team asks about medications, recent illnesses, and the last meal. You may remember details the patient forgets.
- Keep your phone switched onThe team may need to reach you during the wait, and the patient may message you when the scan is done.
- Bring something for yourselfFrom arrival to scan completion can take several hours. Bring water and something to occupy the time.
- Have transport arrangedThe patient may feel tired after the scan. Knowing the car or auto is ready is one fewer thing to manage.
- Flag any special needs before scan dayIf the patient cannot lie still for long, or has dementia or severe anxiety, tell the team in advance so they can plan.
Where do you wait, and how long does it take?
There is a waiting area for attendants near the scanning suite. You will not be sent to a different building.
After the tracer injection, the patient rests quietly for a period while it spreads through the body. This rest period is a medical requirement, not extra delay. You stay in the attendant area during this time.
Once the scan is complete, the team will bring you to the patient. Ask for an estimate of the total time when you arrive, so you are not watching the clock without a reference point.
PET-CT Partner Centres
PET-CT Scan Centres in Hyderabad
CION offers PET-CT scans through 4 trusted partner PET-CT centres across Hyderabad, so you can choose the one closest to you. Call 18002028726 and we’ll guide you to the earliest available appointment.
PET-CT Centre — Punjagutta
PET-CT Centre — Himayatnagar
PET-CT Centre — Narayanaguda
These are partner diagnostic centres within the CION network. Toll-free booking: 18002028726.
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Support for the person doing the caring
Practical guidance from a team that sees families through this every day.
What happens step by step, from arrival to departure?
Arrive at the centre together
You both go in. The team registers the patient and explains the process. You can be present for this part.
Patient goes for the tracer injection
The radioactive tracer is given in a separate restricted room. You move to the attendant waiting area from this point.
Tracer rest period
The patient rests quietly while the tracer moves through the body. This is a normal part of every PET-CT and takes time.
The scan runs
The patient lies still in the scanner. The technician operates it from an adjacent room. No one enters the scan room during this phase.
Reunion and departure
As soon as the scan is done, the team brings you to the patient. You help with transport and take them home.
Is there anything to avoid after the scan is over?
Once the scan is over, the tracer is still in the patient's body and clears naturally over the following hours.
The team will usually advise the patient to avoid close, prolonged contact with pregnant women and young children during this window. This is a routine radiation-protection precaution, not a sign that the patient is unwell.
For most adult attendants who are not pregnant, normal contact is fine immediately after the scan. If you have any doubt, ask the team before you leave — they will give you specific guidance for your situation.
The questions attendants ask most
Can I be in the room when the tracer is injected?
No. The injection room is restricted for the same reason as the scanning room — to protect you from unnecessary radiation. The nurse giving the injection follows their own safety protocols. You move to the waiting area at this point. It takes only a few minutes, and the team will tell you when it is done and what happens next.
What if the patient gets anxious and needs me during the wait?
Let the team know before the appointment begins that the patient is anxious. They can explain each step clearly to the patient, help them feel less isolated, and in some cases adjust how the rest period is managed. If a genuine problem arises during the scan itself, the technician will stop the procedure. You will be brought to the patient as soon as it is safe to do so.
The patient has dementia and cannot be left alone — can an exception be made?
Speak to the CION team well before scan day, not on the day itself. For patients who cannot cooperate or who need a carer for their safety, the team will assess whether and how the scan can proceed. Do not assume that what applies to a cooperative adult will apply here. Contacting the centre in advance gives the team time to make a proper plan rather than improvising on the day.
Should I bring food or drink for after the scan?
Yes, and this is genuinely thoughtful. Patients are usually fasting before a PET-CT and may feel hungry or slightly tired when it is over. A light meal and water are welcome. Ask the team when you arrive whether there are any dietary instructions for the hours immediately after, as these can vary by scan type. They will tell you clearly when eating is fine to resume.
Is there a radiation risk to me from sitting next to the patient on the way home?
For most adults, the brief exposure during travel is not a concern. The precaution the team most commonly mentions is avoiding prolonged, close contact with pregnant women and young children for a few hours — not brief contact with adults. If you are pregnant, or if young children will be travelling with you, say so before the scan. The team will give you specific guidance rather than a general answer.
Book a PET-CT at CION from Rs 10,499 — among the lowest published prices in Hyderabad — with an oncologist-reviewed report and a free Rs 950 consultation, across 4 partner centres. Indicative price, as of September 2026.
Explore 62 more Family Support, Myths, Follow-Up and Emergencies topics
Caretaker & Family Guide
- A Printable PET-CT Day Checklist for Families
- After the Scan: What the Family Should Know
- Collecting and Storing the Report and Images
- Coordinating a Scan for a Parent in Another City
- Explaining a Parent's Scan to Children
- Explaining the Scan to an Anxious Patient
- Getting an Elderly Parent to and From the Scan
- Helping Someone Fast Before a PET-CT
- Managing Cost and Payment as a Family
- Preparing Questions for the Post-Scan Consultation
- The Family's Complete Guide to a PET-CT Scan Day
- What the Attendant Can and Cannot Do During the Scan
Emergencies & Red Flags
- Accidental Radiation Exposure: Pregnancy Discovered After a Scan
- Breathing Difficulty During or After a Scan
- Delayed Contrast Reaction Hours After the Scan
- Emergencies Around a PET-CT Scan: What Needs Immediate Care
- Fainting or Collapse at the Scan Centre
- Low Blood Sugar (Hypoglycaemia) During Fasting
- Panic Attack During the Scan
- Severe Contrast Reaction: Recognising It
- What to Do If the Cannula Site Swells or Hurts After
- When to Call the Centre After Your Scan
Follow-Up & Surveillance Scanning
- Can You Refuse a Follow-Up PET Scan?
- Follow-Up Scanning During Long-Term Treatment
- How Often Will You Need a PET-CT After Treatment?
- Is Routine Surveillance PET Actually Recommended?
- Keeping a Personal Scan Log
- Reducing Radiation Across Years of Surveillance
- Scan-Based vs Symptom-Based Follow-Up
- Surveillance Scanning by Cancer Type: A Reference Table
- The Annual Cost of Cancer Surveillance Scanning
- Transferring Surveillance to a Centre Closer to Home
- What Happens If a Surveillance Scan Shows Something?
- When Can You Stop Having Scans?
Myths & Misinformation
- Ayurvedic and Alternative Alternatives to a PET Scan
- Myth: A Normal PET Scan Means You Are Cured
- Myth: A PET Scan Can Cause Cancer
- Myth: A PET Scan Detects Every Cancer
- Myth: A PET Scan Spreads or Worsens Cancer
- Myth: A Positive PET Scan Means You Definitely Have Cancer
- Myth: A Scan From a Cheaper Centre Will Not Be Accepted
- Myth: An Expensive Scan Is Always a Better Scan
- Myth: Eating Sugar Before a Scan Will Show Up Cancer
- Myth: PET Scans Are Only for Terminal Cancer
- Myth: The Tracer Injection Is a Kind of Chemotherapy
- Myth: You Should Avoid Water After a PET Scan
- Myth: You Should Get a PET Scan Every Year to Be Safe
- Myth: You Stay Radioactive for Days After a PET Scan
Scanxiety & Emotional Impact
- Fear of What the Scan Will Find
- Getting Bad News From a Scan Report
- Getting Good News: Why Relief Is Complicated
- Living Between Scans: The Six-Month Rhythm
- Making the Most of Your Post-Scan Consultation
- Recurring Scanxiety in Long-Term Surveillance
- Scanxiety: The Fear Before and After a PET-CT
- Should You Look Up Your Results Online Before the Consult?
- Supporting Someone Through Scan Day
- Telling Family About Scan Results
- The Night Before a PET-CT Scan
- Waiting for PET-CT Results: How to Get Through It
- When a Patient Refuses to Have the Scan
- When to Seek Counselling Around Scans
Your next step
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Common questions
Frequently asked questions
Can the attendant ever come into the room with the patient?
In most cases, no. Both the scanning room and the injection room are restricted to protect everyone nearby from unnecessary radiation. Exceptions may be considered for patients who genuinely cannot cooperate — such as very young children or patients with severe dementia — but this requires the team to assess and plan before scan day. Contact the CION centre ahead of time if this applies to your family member; raising it on the day is too late to plan properly.
Why does the rest period after the injection take so long?
The tracer needs time to spread through the body and concentrate in the areas the scan is designed to detect. If the patient moves around or is agitated during this period, the tracer does not distribute evenly, which can reduce image quality. This is why the team asks for quiet rest rather than a walk around the waiting room. Helping the patient understand and accept this before the appointment is one of the most practical things an attendant can do.
What should I tell the scanning team when we arrive?
Three things are worth mentioning at the start: whether the patient finds enclosed spaces or lying still difficult, whether the patient has special needs that affect cooperation, and whether you or anyone travelling with you is pregnant. All three can affect how the team manages the scan and what post-scan precautions apply. It is much easier for the team to plan if they know at the outset rather than mid-procedure.
Can the patient eat after the scan?
Usually yes, and for patients who have been fasting this is a relief. Ask the team when eating can resume, because the timing can vary depending on the scan and what else is planned for the day. Bringing a light meal to eat in the waiting area once the team confirms it is fine is helpful and practical. If the patient feels nauseous or tired, keep the first meal small.
How can I help the patient prepare the day before?
The specific preparation instructions for a PET-CT — which typically involve diet, fasting, hydration, and avoiding strenuous exercise — will be given by the scanning team when the appointment is booked. Follow those instructions precisely, because preparation directly affects how clearly cancer cells appear on the scan. Your most useful role is to remind the patient what is required and make it easy for them to follow it.