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Disponible en español: Qué esperar en su primera sesión de quimioterapia

Beginner 5 min readSource checked

What to Expect at Your First Chemotherapy Session

A calm walkthrough of your first chemotherapy visit — how chemo is given, where it happens, what the IV process is like, and why fatigue is worth planning for.

NCI source

NCI last reviewed source: 2025-05-15

A woman in a headscarf rests in a chair connected to an IV at home
A woman in a headscarf rests in a chair connected to an IV at home

Key fact

Chemotherapy can be given by mouth, IV, injection, or other routes, depending on your treatment plan.

The short answer

Chemotherapy can be given by mouth, through a vein, or by injection, and your first session may happen at a hospital, clinic, or home. If you get IV chemo, a nurse places the needle at the start and removes it when treatment is done. Your team watches for side effects throughout. Fatigue is the most common one, so plan a ride and a restful day afterward.

  • Chemotherapy can be given by mouth, IV, injection, or other routes, depending on your treatment plan.

  • IV chemotherapy is most common and may be given through a needle in your hand or arm, or through a catheter or port.

  • You may receive chemotherapy in a hospital, at home, or as an outpatient at a clinic or doctor's office.

  • A nurse puts the IV needle in at the start of your session and removes it when treatment is finished.

Choose how you want to understand this

The full explanation.

The short version

Walking into your first chemotherapy session can feel like a big unknown. Knowing the basic shape of the day helps. That means how the medicine is given, where you will be, and what your team is watching for.

How chemotherapy is given

Chemotherapy can be given in several ways, and your care team will tell you which applies to you:

  • By mouth, as a pill or liquid.
  • Intravenously (IV), into a vein — this is the most common way. IV chemotherapy may go through a thin needle in a vein in your hand or lower arm. It may also go through a catheter or a port, sometimes with the help of a pump.
  • By injection, or through other routes your doctor will explain.

If you already have a port or catheter placed, your session will use that instead of a new needle stick in your arm each time.

Where your session happens

You may receive chemotherapy in a hospital or at home. You may also get it as an outpatient, meaning you do not stay overnight, at a doctor's office, clinic, or hospital. Your care team will let you know ahead of time where to go and what to bring.

What happens with the IV

If you are getting IV chemotherapy, a nurse puts the needle in at the start of your session. It stays in for as long as that visit's treatment takes. The nurse removes it once you are finished. Through the session, your doctor and nurse watch for side effects. They are ready to help if something comes up.

Understanding cycles

Chemotherapy is often given in cycles — a period of treatment followed by a period of rest. For example, you might get chemotherapy for one week and then have three weeks off before the next round. Your first session starts that pattern. Your team will explain what your own schedule looks like.

What you might feel

Everyone responds differently to chemotherapy, so your team cannot say for certain how you personally will feel. The most common side effect is fatigue — feeling unusually tired or worn out. Because of this, it helps to plan ahead:

  • Arrange a ride to and from your session, rather than planning to drive yourself.
  • Set aside time to rest on the day of treatment and the day after.
  • Ask someone to help with errands, meals, or childcare if you can.

Judging whether it's working

It is natural to look for clues about whether the treatment is doing its job. Even so, you cannot tell whether chemotherapy is working from how you feel. Side effects, or the lack of them, do not show how well the treatment is working. Your care team checks progress over time with exams and tests, not with how rough or fine you feel after a session.

Questions for your team

Before your first session, ask your care team how your chemotherapy will be given. Ask where it will happen, and roughly how long to expect to be there. Bring a list of questions with you — there is no such thing as asking too much when you are just getting started.

When to get help sooner

  • Call 911 or go to an emergency department if you have trouble breathing, wheezing, chest tightness, or swelling of the face, lips or tongue during your infusion or after you get home. These can be signs of a severe reaction to the drug. Tell your infusion nurse straight away if it starts while you are still in the chair.
  • Call the number your team gave you as soon as it happens, day or night, if you run a temperature of 100.4°F (38°C) or higher, get shaking chills, or feel hot and shivery in the days after your first session. Chemotherapy lowers the white blood cells that fight infection, so a fever is an emergency and needs care within hours. If no one answers quickly, go to an emergency department and say at once that you are having chemotherapy.
  • Call your care team within a day or two if the spot where the IV needle or port went in becomes sore, swollen, red, warm, or starts leaking fluid, or if the tiredness after your session turns into breathlessness or a pounding heartbeat when you move around.

Sources: Infection and Neutropenia During Cancer Treatment (NCI); Anaphylaxis (MedlinePlus); Side effects of chemotherapy (NHS); Fever During Chemotherapy (CDC)

Words to know

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Common questions

How is chemotherapy given?

Chemotherapy can be given in different ways: by mouth as a pill or liquid, through an injection, or intravenously (IV) into a vein — the most common method. IV chemotherapy may go through a thin needle in a vein in your hand or lower arm. It may also go through a catheter or a port, sometimes with the help of a pump.

Where will I receive chemotherapy?

You might get chemotherapy in a hospital, at home, or as an outpatient — meaning you do not stay overnight — at a doctor's office, clinic, or hospital.

What happens with the IV needle during my session?

If you are getting IV chemotherapy, the nurse puts the needle in at the start of your treatment session and removes it once your treatment for that visit is finished.

Will I feel side effects right away?

It varies from person to person. Your doctor and nurse watch you throughout your session and will help manage any side effects that come up. The most common side effect is fatigue.

How will I know if the chemotherapy is working after one session?

You cannot tell if chemotherapy is working based on side effects. Whether treatment is working is something your care team checks over time with exams and tests, not something you can judge from how you feel during a single session.

Questions to ask your doctor

Being prepared helps you get the most out of your appointments. Save or print these questions.

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Your next step

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Knowledge Check

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  1. Q1.According to this article, what is the most common way chemotherapy is given?
  2. Q2.Where might you receive a chemotherapy session, according to this article?
  3. Q3.What does the article say is the most common chemotherapy side effect?
  4. Q4.According to this article, how can you tell if chemotherapy is working after a session?

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Plain-language explanation of the published sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.

Last updated: 2026-08-18Next planned review: 2027-07-14

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Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.

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How this page was created

Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.

Editorial status: Source checked This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.

Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.

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