Medical Oncologist
The infusion day
Registration, blood tests and waiting
Because the decision to treat you today is made on today's counts. If the white cells or platelets have not recovered, the cycle is postponed — and a dose prepared in advance cannot be put back on a shelf. So the sequence is fixed and nothing downstream can start early. There is one real workaround: many units will take the blood sample the day before, and it is rarely offered unprompted.
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
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The short answer
Why does the blood test have to come first?
Because the decision to treat you today is made on today's counts, not last cycle's. If the white cells or platelets have not recovered, the cycle is postponed — and a dose of chemotherapy prepared in advance cannot be put back on a shelf or given to anyone else.
So the sequence is fixed: register, bleed, wait for results, see the doctor, and only then can the pharmacy begin making up your dose. Nothing downstream can start early, which is why the morning feels like queuing for the sake of it when it is not.
There is one real workaround
Many units will take the blood sample the day before. That removes the single longest wait from treatment day entirely. It is rarely offered unprompted, and asking for it is the most useful thing in this whole cluster.
Ask at your next review: can I come the day before for bloods, so the results are ready when I arrive?At the desk
Getting registration right
This is the part that most often adds avoidable hours, and almost all of it can be settled the day before. Paperwork problems discovered at the counter push everything downstream back by the same amount.
Have the file complete
Treatment card, identity proof, all reports in date order, insurance card or scheme papers, and the medicine list. Missing reports mean time spent chasing them rather than being seen.
Sort approvals in advance
Insurance pre-authorisation and scheme approval are the commonest cause of a long morning. Check the day before that everything is in order rather than finding out at the desk that a signature is missing.
Say these three things unprompted
Whether you have been unwell since the last cycle — a fever, vomiting, loose motions, a cough. Whether you have started any new medicine. And whether you are alone today. Staff cannot act on what nobody mentions, and the first of those can change whether treatment goes ahead at all.
Ask what the plan for the day is
Roughly when you will be bled, roughly when results are expected, and whether the unit is running late. A rough shape lets you decide when to eat and when to tell whoever is collecting you.
Arriving on time matters more than arriving early. The queue builds through the morning and everything shifts with it.Not sure whether this applies to you?
Ask an oncologistThe order
The first part of the day, step by step
Registration and paperwork
Checking in, confirming the file, and settling any insurance or scheme approval. Send your attendant to handle this while you sit down.
Blood taken
Usually a quick sample from the arm. No fasting is normally required for the standard pre-cycle count, though tell them if you were asked to fast for something else that day.
The wait for results
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 moves.
The doctor's review
They check the results, ask how the last cycle went, and confirm the dose. Where counts are borderline this takes longer, because a decision is being made rather than a box ticked.
The pharmacy prepares your dose
Made up individually for you, checked by more than one person, and only after the doctor confirms. The pharmacy is doing the same for everyone else in the unit.
Then you are called through
Cannula or port access, pre-medication, and finally the chemotherapy itself — which is often the shortest part of everything you have waited for.
!
Tell the desk before you sit down to wait
You have a fever now or felt feverish overnight · you have vomited or had loose motions since yesterday · you have a cough, cold or any infection · you have not been able to eat or drink for a day or more · you have new pain, breathlessness or swelling. Say it at registration rather than waiting to be asked at the review. Treatment may need to be postponed, and giving chemotherapy to someone already unwell or dehydrated can do real harm. If you feel very unwell while waiting, tell someone immediately rather than staying in the queue.
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The waiting area
Getting through it well
You are about to spend a substantial part of the morning in a room full of unwell people, possibly close to your low-count window. It is worth treating as part of the treatment rather than dead time.
Eat and drink while you wait
Unless you were told to fast. An empty stomach makes sickness worse later, and the canteen may be shut by the time you get a gap. This is what the biscuits and water in your bag are for.
Ask about waiting somewhere quieter
Particularly during the days your counts are lowest. 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 why.
Use the time deliberately
Go through your written account of the last cycle and your list of questions with whoever is with you. It is often the only uninterrupted stretch you get, and the review afterwards is short.
Send the attendant ahead
Billing, pharmacy enquiries and paperwork can be dealt with during the wait rather than at the end of the day, when the queue is longest and everyone is tired.
Ask for an early appointment slot if you can. Both the queue and the laboratory are lighter earlier.Being straight with you
What this page cannot tell you
It cannot tell you how long your wait will be. It depends on the unit, the day of the week, how busy the laboratory is, and whether anything in your results needs a decision rather than a signature. Ask your own unit what is typical.
It also cannot tell you whether your hospital allows the day-before blood test. Practice differs, and some units cannot accommodate it at all. It remains worth asking, because where it is possible it changes the shape of every treatment day.
What to do next
Ask whether bloods can be done the day before. Check your scheme and insurance paperwork the day before rather than at the desk. Tell registration if you have been unwell. Take food and water for the wait. And use the waiting time to go through your questions.
Questions we are asked
Common questions about registration and waiting
Can the blood test be done the day before?
Many units allow it and it removes the longest wait from treatment day. It is rarely offered unless you ask, so raise it at your next review. Where it is possible it is the single most effective change available to you.
Do I need to fast for the pre-cycle blood test?
Normally no. The standard count taken before chemotherapy does not require an empty stomach. If a different test has been added that does, you should be told when the appointment is made — ask rather than fasting on the assumption.
Does arriving early get me seen sooner?
Arriving on time helps, because the queue builds through the morning and every later step shifts with it. Arriving hours before your slot usually just means longer in a crowded waiting area, which is not ideal during your low-count days.
Why can the medicine not be made up while I wait?
Because the dose is confirmed only after the doctor sees that day's counts. If the counts are too low the cycle is postponed, and a prepared dose cannot be stored or given to anyone else. Preparing early would waste expensive drugs regularly.
Is it safe to sit in the waiting area?
During your low-count days, ask whether you can wait somewhere quieter — crowded waiting areas are where people on treatment pick up infections. A mask is reasonable, and most units will accommodate the request if you explain.
What should I say at the registration desk?
Whether you have been unwell since the last cycle — fever, vomiting, loose motions, a cough — whether you have started any new medicine, and whether you are alone today. Say it unprompted rather than waiting to be asked at the review.
What causes the longest delays?
Waiting for laboratory results, and insurance or scheme approval problems discovered at the desk. The first is largely fixed; the second is almost entirely avoidable by checking your paperwork the day before.
Can I go out and come back?
Ask at the desk, since you may be called at short notice once results arrive. It is usually easier to send your attendant out for food while you stay. Agree how you will reach each other, as phone signal inside hospitals is unreliable.
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Sources
- Cancer Research UK — Having chemotherapy
- Macmillan Cancer Support — Having chemotherapy
- National Cancer Institute — Chemotherapy to Treat Cancer
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