Coagulation Screen Test
Short Name: Coagulation Screen
Also known as: Clotting Screen, Coagulation Panel
Coagulation Screen Test test available at DNA Labs India for ₹1,123. Uses Photo-optical Clot Detection, Electrical Impedance on Whole blood samples. Results in Reports are typically available within 24-48 hours after sample collection.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Ramarao Paidisetty
Consultant Biochemist · Reg: 21504
Last reviewed: September 7, 2026
Overview
The purpose of the Coagulation Screen Test is to assess the blood's clotting function by measuring key coagulation factors, helping diagnose bleeding or clotting disorders and guide medical treatment.
- Test Code
- 335
- Price
- ₹1,123
- Sample Type
- Whole blood
- Result Time
- Reports are typically available within 24-48 hours after sample collection.
- Fasting Required
- Yes
- Method
- Photo-optical Clot Detection, Electrical Impedance
Sample Collection
Overnight fasting is preferred. Ensure the Coagulation Requisition Form (Form 15) is duly filled. Avoid anticoagulant medications as advised by your doctor.
Method: Venipuncture
Laboratory Analysis
A healthcare professional will collect blood samples via venipuncture into specified tubes. Proper mixing by inversion is required for the citrate tube.
Report Delivery
Apply pressure to the puncture site to prevent bruising. Samples should be transported to the lab within 4 hours or processed for PPP as instructed.
Timeline: Reports are typically available within 24-48 hours after sample collection.
Patient Instructions
About This Test
Who Should Get This Test
The purpose of the Coagulation Screen Test is to assess the blood's clotting function by measuring key coagulation factors, helping diagnose bleeding or clotting disorders and guide medical treatment.
How to Prepare
- Collect 3 mL whole blood in 1 Lavender Top (EDTA) tube. Ship refrigerated. DO NOT FREEZE.
- Collect 3 mL whole blood in 1 Blue Top (Sodium Citrate) tube. Mix thoroughly by inversion.
- Transport to lab within 4 hours. If delayed, prepare Platelet-Poor Plasma (PPP) by centrifuging at 3600 rpm for 15 minutes, transfer supernatant, and centrifuge again. Freeze immediately and ship frozen. DO NOT THAW.
- Overnight fasting is preferred. Duly filled Coagulation Requisition Form (Form 15) is mandatory.
Doctor's Notes
Reviewed by Dr Ramarao Paidisetty — MBBS, MD (Biochemistry) · Reg. No. 21504
"This test is essential for evaluating bleeding risks and clotting disorders, helping guide appropriate treatment."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Hemolyzed or clotted samples
- Insufficient volume
- Improper labeling or missing requisition form
- Thawed frozen samples
Understanding Your Results
Platelet Count
PT/APTT
INR
If results are abnormal, experience unexplained bleeding, or have a family history of bleeding disorders, consult a hematologist for further evaluation.
Limitations
- ⚠May not detect all clotting disorders; additional tests like D-dimer may be needed.
- ⚠Results can be affected by pre-analytical variables such as improper sample collection.
- ⚠Not specific for certain genetic bleeding disorders; genetic testing might be required.
Risks & Considerations
- ●Minor bruising or soreness at the puncture site
- ●Rarely, infection or excessive bleeding
Interfering Factors
- ●Anticoagulant medications (e.g., warfarin)
- ●Recent meals or alcohol consumption
- ●Dehydration or anemia
- ●Liver disease or vitamin K deficiency
Frequently Asked Questions
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