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🧬 DNA Testing for Identifying Dead Bodies: How It Works and Why It Matters

  🧬 DNA Testing for Identifying Dead Bodies: How It Works and Why It Matters By HealthRaise | Science Behind the Scenes In tragic incidents like plane crashes or natural disasters, identifying the deceased becomes a crucial step for both legal and emotional closure. When the body is unrecognizable due to severe trauma or decomposition, traditional methods like visual recognition or fingerprinting often fail. In such situations, DNA testing becomes the most reliable and scientific tool for identification. This is exactly what we are witnessing in the recent Air India Ahmedabad case , where authorities are using DNA tests to identify the remains of victims and match them with their relatives. 🧬 What is DNA Testing? DNA (Deoxyribonucleic Acid) is the unique genetic code found in every cell of the human body. Except for identical twins, no two individuals share the same DNA. That’s why DNA testing is considered the gold standard in forensic identification. 🔬 How is DNA Test...
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BT CT BLOOD TEST PURPOSE AND PROCEDURE...


Blood tests labeled as "BT" (Bleeding Time) and "CT" (Clotting Time) are diagnostic tests used to evaluate the function of platelets and the clotting process of blood. Here's a brief explanation of each:

Bleeding Time (BT)

  • Purpose: Measures the time it takes for small blood vessels to stop bleeding after a tiny puncture wound is made. It assesses platelet function and the ability of blood vessels to constrict.
  • Procedure: A small incision is made on the skin (usually the forearm), and the time taken for bleeding to stop is measured. The normal range for bleeding time is typically between 2 to 7 minutes, but this can vary.
  • Clinical Significance: Prolonged bleeding time can indicate platelet function disorders, vascular abnormalities, or certain medical conditions such as von Willebrand disease, thrombocytopenia, or use of antiplatelet medications.

Clotting Time (CT)

  • Purpose: Measures the time it takes for blood to clot in a test tube. It evaluates the overall clotting ability of blood and the function of various clotting factors.
  • Procedure: Blood is drawn and placed in a test tube, and the time taken for it to clot is recorded. The normal range for clotting time is usually between 7 to 15 minutes, but this can also vary.
  • Clinical Significance: Prolonged clotting time can indicate deficiencies in clotting factors, hemophilia, liver disease, or the presence of anticoagulant medications.

Both tests are relatively simple and provide valuable information about bleeding disorders and the overall health of the blood's clotting mechanism. However, more advanced and specific tests, such as Prothrombin Time (PT), Activated Partial Thromboplastin Time (aPTT), and platelet function tests, are often used to further investigate and diagnose clotting disorders.

 


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