Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Emergency symptoms such as breathing difficulty, confusion, fainting, or severe weakness require emergency care.
Between visits, do not wait for routine testing if fever or infection symptoms develop.
Use the urgent contact plan provided by your team.
Follow-up blood counts show whether neutrophils are recovering.
The schedule may range from frequent testing during the acute illness to less frequent monitoring once the count is stable.
The clinician will also review symptoms, culture results, medication changes, and any treatment side effects.
Routine follow-up may include a primary care clinician, the original prescriber, or a hematologist, who specializes in blood disorders.
People receiving chemotherapy usually follow a monitoring plan from their oncology team.
Keep routine appointments even after the count improves, particularly when the cause is uncertain or other blood-cell counts were abnormal.
The article also says
Ask for written information about the suspected cause.
If a medication caused the reaction, confirm how it will appear in your allergy or adverse-reaction record and whether related drugs should be avoided.
Tell future clinicians, dentists, and pharmacists about the history.
Every sign above is quoted from the sofidex article on Agranulocytosis. If you are not sure, err upward — it is always reasonable to be checked.