Medical Oncologist
The infusion day
Why the wait on treatment day is so long
Because almost none of the day is the infusion. Blood has to be taken and results returned, a doctor has to confirm you are safe to treat, and only then can the pharmacy prepare a dose made up individually for you. Each step waits on the one before. The waiting is the safety process rather than disorganisation — but some of it is avoidable, and this page covers which parts.
NG
Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed September 2026, next review due September 2027
17+specialists on panel
15,000+patients treated
35+centres across Telangana & AP
4.8★ / 800+Google rating
The short answer
Why does a short infusion take all day?
Because almost none of the day is the infusion. Blood has to be taken and the results have to come back. A doctor has to see them and confirm you are safe to treat. Only then can the pharmacy start preparing your dose, which is made up individually for you and cannot be done in advance. Then the pre-medication runs before the chemotherapy does.
Each of those steps has a queue behind it, and they are sequential — none can start until the one before finishes. That is why a treatment described as lasting an hour can occupy most of a day.
The part worth understanding
The waiting is not disorganisation. It is the safety process. The dose cannot be mixed before the doctor has seen today's blood counts, because if the counts are too low the treatment does not go ahead at all — and a prepared dose of chemotherapy cannot simply be put back on a shelf.
Ask the unit what time is realistic for your schedule, and tell whoever is collecting you to plan for later than that.Where the hours go
The steps, and why each one takes time
Every stage has to finish before the next can start. That sequencing is the whole explanation.
-
Registration and paperwork
Checking in, insurance or scheme approval, and confirming the file. Scheme paperwork in particular can take considerably longer than anyone expects, and it has to be settled before treatment.
-
Blood taken, and the wait for results
Usually the longest single block. The laboratory is processing samples from the whole hospital, and your counts, kidney and liver results all have to come back before anything else moves.
-
The doctor reviews them
They check the results, ask how the last cycle went, examine you if needed, and confirm the dose. If counts are borderline this takes longer, because a decision has to be made rather than a box ticked.
-
The pharmacy prepares your dose
Made up individually, in a sterile cabinet, checked by more than one person. This cannot begin before the doctor confirms, and the pharmacy is doing the same for everyone else in the unit.
-
Cannula or port access
Quick when a vein is easy to find. If veins are difficult, which is common after several cycles, this can take a while and may need someone more experienced to be called.
-
Pre-medication
Anti-sickness medicine and sometimes other drugs have to run through before the chemotherapy starts, because they work best already in the system. With some schedules there are fluids as well.
-
The chemotherapy itself
Often the shortest part of the day. Some drugs run in quickly; others are deliberately given slowly, particularly the first time, to reduce the chance of a reaction.
-
Flushing, medicines and discharge
The line is flushed and removed, take-home medicines are collected from the pharmacy, and the next date is given. The pharmacy queue at this point catches many people out.
Not sure whether this applies to you?
Ask an oncologistWhat you can actually influence
Things that genuinely shorten the day
Some of the wait is fixed. These are the parts that are not, and most of them are decided before you arrive.
Have blood taken the day before
Many units allow this, and it removes the single longest wait from treatment day. Ask whether it is possible for you — it is the most effective change available and it is rarely offered unprompted.
Ask
- Can I come the day before for bloods?
- Can the results be ready when I arrive?
Arrive on time, early in the day
The queue lengthens through the morning and everything downstream shifts with it. Arriving late does not delay only you — it pushes your pharmacy slot behind everyone else's.
Sort the paperwork in advance
Insurance pre-authorisation, scheme approvals and any documents the hospital needs. Check the day before that everything is in order rather than discovering a missing signature at the counter.
Scheme approval delays are one of the commonest causes of a long morning.Drink well the day before
Being properly hydrated makes a vein far easier to find, which removes one of the more unpredictable delays. It also makes the cannula less uncomfortable.
Bring the file complete
Missing reports mean time spent chasing them. Everything in one file, in date order, most recent on top, including anything from another hospital.
Send someone for the medicines early
If you have an attendant, they can join the pharmacy queue while your infusion is still running rather than after it finishes. That alone can save a substantial wait at the end.
!
Tell the staff rather than waiting quietly
If during the wait you develop a fever, feel faint or very unwell, become breathless, have chest pain, or cannot keep fluids down, tell someone at the desk immediately rather than staying in the queue. People on chemotherapy waiting in a crowded area are also at higher risk of picking up an infection, so ask whether you can wait somewhere quieter during the days your counts are lowest.
Leave a number, we will call you
One field. No form to fill in, and no charge for the call.
Being straight with you
What this page cannot tell you
It cannot tell you how long your day will be. It depends on the unit, the day of the week, how busy the laboratory is, your particular drugs and whether anything about your results needs a decision. Ask your own unit what is typical.
It also cannot promise the wait can be shortened. Some of it is fixed by the safety process and will not change however well you prepare. What preparation does is remove the avoidable parts — the missing report, the unapproved scheme form, the difficult vein.
What to do next
Ask whether blood can be taken the day before. Check your paperwork and approvals in advance. Drink well the day before. Pack food, water, a charger and something to occupy you. And tell whoever is collecting you to plan for later than the time you expect.
Questions we are asked
Common questions about the wait
Why can the medicine not be prepared in advance?
Because the dose is confirmed only after the doctor sees that day's blood counts. If the counts are too low the cycle is postponed, and a prepared dose of chemotherapy cannot be put back on a shelf or given to anyone else. Preparing early would waste expensive drugs regularly.
Can I have my blood test the day before?
Many units allow this and it removes the longest single wait from treatment day. It is the most effective thing you can ask for, and it is rarely offered unless you raise it. Ask at your next review whether it is possible for your schedule.
Does arriving earlier get me seen sooner?
Arriving on time helps, because the queue builds through the morning and every downstream step shifts with it. Arriving hours before your slot usually just means waiting longer in the building, which is not ideal during the days your counts are low.
Why does it take longer some cycles than others?
Borderline blood results need a decision rather than a signature. A difficult vein can take a while. Scheme or insurance paperwork varies. And the unit's overall load differs by day. The same treatment genuinely can take very different amounts of time.
Can my attendant leave and come back?
Usually, and it is often sensible — they can deal with billing, collect medicines or get food while you are in the chair. Agree in advance how you will reach each other, since phone signal inside hospitals is unreliable and infusions sometimes finish early.
Is it safe to wait in a crowded area?
During the days your blood counts are lowest, ask whether you can wait somewhere quieter. Crowded waiting areas are where people on chemotherapy pick up infections. Wearing a mask is reasonable, and most units will accommodate the request if you explain.
Should I eat while waiting?
Yes, unless you were specifically told to fast. An empty stomach makes sickness worse, and the wait is unpredictable. Bring your own dry snacks and water rather than relying on the canteen being open when you finally get a gap.
Can I complain about the wait?
You can always ask for an explanation or an estimate, and staff would rather tell you than have you sitting anxious. Asking what is being waited for usually produces a clearer answer than asking how much longer, and it often reveals something you can chase.
Meet the Specialists
17+ senior cancer specialists. One panel for your case.
Trained at AIIMS, Tata Memorial, and leading international centres. Combined 150+ years of experience. Every complex case is reviewed by 3+ of them — together.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
Surgical Oncologist
Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
Surgical Oncologist
Surgical Oncologist
Dr. Vinay Mamidala
MBBS, MS(General Surgery), M.Ch(Surgical Oncology), FMAS, FARIS(Ongoing)
Surgical Oncologist
Radiation Oncologist
Radiation Oncologist
Radiation Oncologist
Hematologist
Surgical Oncologist
Dr. Vajja Sandeep Kumar
MBBS, MS (General Surgery), DrNB (Surgical Oncology), FALS Oncology
Surgical Oncologist
Want a specific doctor for your case? Mention them when booking.
Book Free ConsultationBook an appointment with our specialist
Share your name and number — we'll call you back within 30 minutes to schedule your consultation.
Sources
- Cancer Research UK — Having chemotherapy
- Macmillan Cancer Support — Having chemotherapy
- National Cancer Institute — Chemotherapy to Treat Cancer
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Talk to us
Treatment days taking over your whole week?
Tell us what has been found so far and we will help you reach the right specialist. One helpline serves every CION centre.