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CD55 (PNH Marker)

CD55 (PNH Marker) is a diagnostic test that measures specific health markers as part of targeted or preventive diagnostic screening. Commonly ordered for adults seeking annual preventive screening or those with symptoms flagged during a recent consultation. GetVisit offers transparent pricing, NABL-accredited processing, and digital report delivery , book your slot online in under two minutes.
What is a CD55 (PNH Marker) Test in Gwalior ?
What is CD55 (PNH Marker)?
CD55 (PNH Marker) is a laboratory test that evaluates one or more health markers in the blood or urine. The results provide objective, quantifiable data that doctors use to confirm diagnoses, guide treatment plans, or track changes in a patient's health over time.
What does CD55 (PNH Marker) measure?
The CD55 (PNH Marker) test measures the amount of CD55 protein on red blood cells. CD55 helps protect blood cells from the body's complement system, which can destroy cells if unchecked. Low or absent CD55 is a hallmark of paroxysmal nocturnal hemoglobinuria (PNH). The specific marker measured depends on the test your doctor has ordered. A blood sample is typically collected from a vein in the arm using a standard venipuncture technique. The sample is then sent to a NABL-accredited laboratory where it is analysed using validated, quality-controlled equipment. Results are reported with reference ranges and returned digitally.
What do the results of CD55 (PNH Marker) mean?
Diagnostic test results are tools to support clinical decision-making, not standalone diagnoses. A result outside the reference range raises a question; your doctor's clinical assessment answers it. After your results are available, book a consultation with your doctor to discuss the findings and decide on any action needed. All GetVisit reports are available digitally and can be shared with any specialist.
CD55 (PNH Marker) Test Preparation in Gwalior
Fasting and dietary instructions:
No fasting is required for this test. However, as a general precaution, avoid alcohol and a heavy, fatty meal the evening before any blood test. These can temporarily alter several commonly tested markers even in tests that do not require strict fasting.
Medication guidance:
Continue taking all regular prescribed medication unless your doctor has specifically asked you to stop before this test. Inform the lab staff about all medications, supplements, and herbal remedies you are currently taking. Some substances affect specific test values, and this information helps your doctor interpret results accurately.
What to bring:
Carry your doctor's test order, a photo ID, and your corporate OPD insurance card to the appointment. If you have had this test done before, bring your previous reports , comparing values over time is clinically more meaningful than interpreting a single reading in isolation.
Timing:
The best time for blood tests is in the morning after an overnight fast and a night of normal rest. Stress, poor sleep, and strenuous activity can affect several hormonal and metabolic markers. Booking a morning slot minimises these variables.
CD55 (PNH Marker) Test Parameters in Gwalior
The CD55 (PNH Marker) test evaluates various parameters. Here are the main parameters checked:
Why Take a CD55 (PNH Marker) Test in Gwalior ?
When does a doctor order CD55 (PNH Marker)?
CD55 (PNH Marker) is ordered when a doctor needs objective laboratory data to support, confirm, or rule out a clinical diagnosis. It may also follow up on a previously abnormal result, assess your response to a new treatment, serve as a baseline before starting a medication that affects the measured marker, or form part of a pre-operative health assessment.
Who should get CD55 (PNH Marker) done?
CD55 (PNH Marker) is usually ordered as part of a hemolysis or PNH flow cytometry panel that also checks CD59 and other markers. Doctors may request it for unexplained anemia, dark or cola-colored urine, or unusual blood clots. Adults above 30 benefit from including CD55 (PNH Marker) in a periodic preventive health panel. People with chronic conditions such as diabetes, hypertension, or autoimmune disease, those on long-term prescription medication, and individuals with a relevant family history should have this test at the frequency their doctor recommends.
What happens after the results are ready?
After receiving your results, discuss them with your doctor before making any decisions about medication or lifestyle changes. GetVisit stores your report digitally in your health profile, linked to your history of previous tests. This longitudinal view allows your doctor to assess trends over time , often more informative than any single result in isolation.
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Thank you, Rinku. I appreciate your help during my visit. The hospital staff were courteous and professional. Overall, a very good experience!
Vijay Bisht was friendly, helpful, and made our home test process seamless. Grateful for his timely support and follow-up.
A big thank you to Shikhar from the Visit app for going above and beyond to arrange a last-minute appointment during an urgent situation. His seamless coordination truly made a difference.
A clean facility enhances experience. Quick checkups are a plus. Miss Rinku from Aditya Birla Health Insurance provided excellent service and handled our files well.
“The service was excellent—she was helpful, efficient, and made my recovery smooth and stress-free. Her support made a real difference.”
“Thank you, Shared Gupta, for the great support with my reimbursement claims and Wipro health packages. Truly appreciated!”
Thank you, Rinku. I appreciate your help during my visit. The hospital staff were courteous and professional. Overall, a very good experience!
I want to share my feedback on the help I received for my health checkup. I was happy with the guidance and support. Thank you for your assistance; it made the experience stress-free.
Huge shoutout to Shikhar from the Visit app! He has been incredibly supportive during emergencies — always responsive and ready to help. Truly impressed by his dedication and calm efficiency.
“I connected with the concierge team today and spoke with Vijay—he was helpful and made a real effort to address my concerns.”
I appreciate Shreshta's outstanding support. She kept me updated on my medicals after hours and ensured everything went smoothly. Her proactive communication and care made a big difference.
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Hi Aniket, Annu, Mayur, I appreciate Shikhar's support in organizing clinic appointments for my child at odd hours. It's a sensitive matter for any parent, and I'm thankful for his understanding.
I want to share my feedback on the help I received for my health checkup. I was happy with the guidance and support. Thank you for your assistance; it made the experience stress-free.
Huge shoutout to Shikhar from the Visit app! He has been incredibly supportive during emergencies — always responsive and ready to help. Truly impressed by his dedication and calm efficiency.
“I connected with the concierge team today and spoke with Vijay—he was helpful and made a real effort to address my concerns.”
I appreciate Shreshta's outstanding support. She kept me updated on my medicals after hours and ensured everything went smoothly. Her proactive communication and care made a big difference.
“Grateful to Shikhar for finding a cataract specialist at a convenient time and ensuring a smooth experience. A true asset to the Visit team!”
Hi Aniket, Annu, Mayur, I appreciate Shikhar's support in organizing clinic appointments for my child at odd hours. It's a sensitive matter for any parent, and I'm thankful for his understanding.