Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Call emergency services for fainting, confusion, severe or rapidly worsening shortness of breath, marked weakness, clammy skin, or severe chest pain.
And for anyone, someone who:
Contact the care team promptly for gradually increasing breathlessness, chest discomfort, swelling, fatigue, fever, or a faster heartbeat.
These symptoms need timely review but may not always represent recurrent tamponade.
These symptoms should not wait for a routine appointment.
Follow-up is tailored to the cause and the likelihood that fluid will return.
It may include repeat echocardiograms, symptom checks, physical examinations, and blood tests.
If a drainage catheter was used, the care team may monitor how much fluid continues to drain before removing it.
Follow-up may also involve oncology, infectious disease, kidney, rheumatology, endocrine, trauma, or surgical specialists.
Ask for clear instructions about activity, wound care, medicines, and when repeat imaging is planned.
Take medicines only as directed.
Do not stop anticoagulants like warfarin or apixaban , anti-inflammatory medicines, or treatment for another medical condition without speaking with the prescribing clinician.
The article also says
Keep scheduled cardiology and primary care appointments even if symptoms improve.
Every sign above is quoted from the sofidex article on Cardiac tamponade. If you are not sure, err upward — it is always reasonable to be checked.