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CD42a (Megakaryocytic Cell Marker)
Measures a platelet surface marker (CD42a) to identify megakaryocytes and detect platelet or bone marrow problems.
What is a CD42a (Megakaryocytic Cell Marker) Test?
The CD42a test detects a protein found on platelets and their parent cells, megakaryocytes. This protein helps platelets stick and form clots. Measuring CD42a shows whether cells in blood or bone marrow are from the platelet line. Doctors use it when they need to identify platelet-related cells. It helps find causes of low platelet counts, unexplained bleeding, and some bone marrow disorders. The test is often done with flow cytometry or tissue staining. Results guide diagnosis, treatment planning, and monitoring of conditions that affect platelet production or function. It also helps distinguish platelet problems from other blood cell disorders.
CD42a (Megakaryocytic Cell Marker) Test Preparation
No special preparation is required.
CD42a (Megakaryocytic Cell Marker) Test Parameters
The CD42a (Megakaryocytic Cell Marker) test evaluates various parameters related to the different components. Here are the main parameters that are checked in the test:
Why Take a CD42a (Megakaryocytic Cell Marker) Test?
CD42a (Megakaryocytic Cell Marker) is often included in platelet or bone marrow immunophenotyping panels and flow cytometry studies. Doctors may order it for unexplained low platelets, abnormal bleeding, bruising, or when bone marrow disease is suspected. It helps diagnose platelet production problems, immune or inherited platelet disorders, and some blood cancers. Abnormal results can come from bone marrow disease, autoimmune destruction, medications, or toxic exposures. A family history of bleeding or inherited platelet disorders can make this test important.
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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.
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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.