Before You Start Chemotherapy: — Tests, Ports and Your Plan

Most patients complete their workup and start chemotherapy within a matter of weeks of the decision to treat. The exact time depends on how many tests are needed, whether a port has to be inserted, and whether any additional clearances are required. If a fertility referral is part of your plan, starting that process as early as possible — as soon as chemotherapy is confirmed — prevents it from extending your wait. If the preparation feels longer than expected, ask your oncologist what is still outstanding and whether any steps can run in parallel.

Many people continue to work through chemotherapy, particularly those on regimens where side effects are manageable and predictable. Whether that is realistic depends on what you do, how your body responds in the first cycle, and how flexible your employer can be. The first cycle is the hardest to plan for, because you do not yet know your own pattern of side effects. Most oncologists advise having flexible leave available for the first several cycles while you learn how you respond, and adjusting from there.

Difficult veins are common, and chemotherapy nursing teams are experienced with them. If peripheral IV access is consistently hard to establish, that is often the clinical reason a port or PICC line is recommended. Raise this at your assessment appointment rather than waiting until the day of your first cycle. Drinking enough fluid and keeping your arm warm before each session can help, but if access is genuinely a recurring problem, a vascular access device is the appropriate answer — not repeated difficult attempts.

Invasive dental procedures — extractions, root canals, implants — carry a higher infection risk during chemotherapy because your white cell count will be lower than usual. Most oncologists recommend completing necessary dental work before treatment begins. Routine hygiene appointments are generally continued, but always tell your dentist you are on chemotherapy before any appointment. If urgent dental treatment is needed during your course, your oncologist and dentist should communicate before the procedure goes ahead.

Yes. Your oncologist will schedule blood tests and imaging at planned intervals during your course to assess response. The timing and type of these assessments depend on your cancer type and your regimen, and they are separate from the baseline tests done before you start. If your oncologist has not yet explained when your first response assessment is planned and what it will look at, that is a reasonable question to ask before your first cycle begins.

Some treatment plans combine surgery and chemotherapy — chemotherapy first to shrink the tumour before an operation, or chemotherapy after surgery to reduce the risk of the cancer returning. The sequence is planned before treatment begins and matters clinically. If surgery is part of your plan, your surgical team and your oncology team should be communicating directly. Ask your oncologist to explain the full sequence — not just the chemotherapy component — so you understand how the two fit together and what the overall timeline looks like.