Uses flow cytometry to check whether certain protective proteins are missing from the surface of your blood cells.
Diagnoses paroxysmal nocturnal haemoglobinuria (PNH), a rare condition causing red cell breakdown, dark urine, blood clots and low blood counts.
Tiredness, weakness, pale skin, fever, frequent infections, easy bruising or bleeding; routine health check-ups.
No fasting needed.
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.
Read our Editorial Policy and Medical Review Process.
No specific fasting instruction is listed by the lab. Please follow your doctor's advice or confirm while booking.
Blood or bone marrow sample (EDTA/heparin tube) as advised by your haematologist.
Usually about 3–4 days after the sample reaches the lab. You will receive the report online.