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THIRD THINKER



TME 74: The Truth About the “Universal Donor”: What is Universal Donor? Why O-Negative Blood Isn’t Always Universal
Most people think:
👉 “O negative blood can be given to anyone.”
Sounds simple. Feels heroic.
But here’s the truth — it’s not that simple.
I’ve seen it firsthand in the blood centre.
We call O negative the “universal donor” blood because it lacks A, B, and Rh antigens — the main flags our immune system looks for.
So when a patient’s blood group is unknown, especially in emergencies, we grab O negative. It saves lives.

Dr. ARUN V J
5 days ago5 min read


TME 77: Artificial Blood Is Closer Than You Think: How Science Is Rewriting the Future of Saving Lives
Artificial blood might one day become one of medicine’s greatest breakthroughs. But until then, you — the everyday donor, the curious learner, the compassionate human — remain the real lifeline.
Because every drop counts.
And every idea brings us one step closer to a world where no one runs out of time.

Dr. ARUN V J
Oct 225 min read


TME 76: “Why Some People Refuse Blood Even When It Can Save Their Life — The Shocking Truth Behind It”
The most well-known group is the Jehovah’s Witnesses, who strictly avoid transfusions of whole blood and its primary components — red cells, white cells, platelets, and plasma. Their belief comes from biblical passages such as Acts 15:28-29, which they interpret as a command from God to “abstain from blood.”

Dr. ARUN V J
Oct 124 min read


TME 75:💉 Are Hospitals Selling My Free Blood for Money? The Truth Every Donor Must Know
“If I give my blood for free, why are hospitals charging patients for it? Are they secretly selling it for profit?”
Humans naturally look for fairness. If you gave something free, and someone else is being charged, it feels unfair.
But fairness also means the patient should get safe, high-quality blood. And that requires money.
Think of it as a partnership:
You give freely.
Hospitals safeguard and deliver.
Patients receive safely.
Everyone plays a role.

Dr. ARUN V J
Oct 44 min read


TME 74: Blood Letting: From Barber Shops to Modern Hospitals
Blood letting is one of the oldest medical practices known to humankind. Ancient Egyptians, Greeks, and Romans all used it. For thousands of years, people believed that most diseases were caused by “bad blood” or an imbalance of the body’s four humors (blood, phlegm, black bile, and yellow bile). Which, of course was wrong.

Dr. ARUN V J
Sep 303 min read


Short story - “The Silent Year”
Short story in Blood Donation
Theme: Ink in the Veins
Prize winner at TRANSCON 2025 Golden Jubilee Conference, Delhi, organised by the Indian Society of Blood Transfusion & Immunohematology (ISBTI)

Dr. ARUN V J
Sep 223 min read


TME 73: All bleed red, then why are blood donation criteria different across the Globe?
Blood donation systems around the world share one mission: to provide safe blood to those in need. The details may differ – from collected volume and donation frequency to testing protocols and regulations – but donors everywhere make a difference. By understanding global variations, you can give confidently and safely, knowing you’re contributing to a world of health and hope.

Dr. ARUN V J
Sep 115 min read


TME 72: The Impact of Donating Blood on Your Health
blood donation is not just an act of kindness; it's a step towards maintaining your own health as well. So gather the courage, roll up your sleeves, and make a difference today. By donating blood, you are embarking on a healthier path for yourself while contributing to the tremendously impactful act of saving lives.

Dr. ARUN V J
Sep 38 min read


TME 71: How to Make Your First Blood Donation?: A Simple, Step-by-Step Guide to Saving Lives (Even if You're Nervous!)
Donating blood for the first time is a remarkable act of community and care. By preparing well and following these simple steps, you ensured a positive experience for yourself and maximized the safety and impact of your precious gift. The need for blood is constant. You stepped up. Thank you for being a real-life hero!

Dr. ARUN V J
Aug 56 min read


TME 70: The Life-Saving Pregnancy Test You've Never Heard Of: Why IAT Matters for EVERY Mom
Most hospitals only screen Rh-negative mothers for blood antibodies. But here’s the shocking truth: over 400 blood group antigens exist, and any mismatch can trigger a life-threatening condition called Hemolytic Disease of the Fetus and Newborn (HDFN). Let’s break down why universal IAT testing is a game-changer.

Dr. ARUN V J
Jul 123 min read


TME 68: The Coombs Test: A Lifesaving Breakthrough in Blood Banking and Immunohematology
The Coombs Test is one of medicine’s unsung heroes—a simple idea that transformed blood safety. Whether you’re a blood donor, a patient, or an expecting parent, this test plays a silent but lifesaving role in healthcare.

Dr. ARUN V J
Jun 203 min read


TME 67: Blood and Battlefields: The Lifesaving Evolution of Blood Transfusion in Warfare — And What Today’s Conflicts Demand
War exposes our fragility — but also our ingenuity. The quest to move blood faster, store it longer, and share it freely has turned battlefields into labs of hope. Yet as conflicts multiply, your awareness and action matter: give blood, back policies that protect it, and remember — in the economy of war, blood is the currency of survival.

Dr. ARUN V J
Jun 123 min read


TME 66: How Do We Store Blood & For How Long?
Blood transfusions save millions of lives every year, but have you ever wondered how donated blood is stored and preserved? From battlefield innovations to cutting-edge cryopreservation, the science of blood banking has undergone remarkable advancements.

Dr. ARUN V J
Jun 22 min read


TME 65: Why Do Blood Banks Irradiate Donated Blood? A Life-Saving Procedure You Should Know About
Blood irradiation is a life-saving but underrated procedure that protects the most vulnerable patients. While cost and infrastructure remain barriers in India, raising awareness can drive change.

Dr. ARUN V J
May 133 min read


TME 64: Leucoreduction of Blood: Why Removing White Blood Cells Matters in Transfusions
Leucoreduction is a vital but often unseen step in transfusion medicine. By removing white blood cells, we prevent complications, protect vulnerable patients, and make transfusions safer.
Whether you’re a patient, donor, or simply curious about medical science, understanding this process highlights how modern medicine continuously evolves to save lives—one filtered drop at a time.

Dr. ARUN V J
May 72 min read


TME 63: Why You Shouldn’t Wait for Someone to Call You to Donate Blood
Someone, somewhere, is fighting for their life right now, hoping that your blood is waiting for them in the blood bank.
Don’t wait for a call.
Don’t wait for an emergency.
Donate today—because tomorrow might be too late.

Dr. ARUN V J
Apr 303 min read


TME 62: Why do we need to Crossmatch Blood?: A Life-Saving "Blood Compatibility Check"
The crossmatch procedure represents a critical final checkpoint in transfusion safety. While technological advances continue to refine the process, the fundamental principle remains unchanged: ensuring donor-recipient compatibility to prevent potentially fatal reactions. Clinicians and laboratory professionals must work collaboratively to balance the urgency of transfusion needs with the imperative of patient safety.

Dr. ARUN V J
Apr 223 min read


TME 61: Wolverine: The Stem Cell Superhero? How Does His Healing Scientifically Work?
Wolverine’s healing factor represents the ultimate fantasy of regeneration, a superpower that pushes the boundaries of biology. While stem cells offer real promise for regenerative medicine—such as growing replacement organs or repairing spinal cord injuries—they are still limited by the laws of nature.

Dr. ARUN V J
Apr 125 min read


TME 60: Alien Blood Transfusions: A Biomedical Thought Experiment
While the idea of cross species transfusion make for excellent science fiction,biological reality suggests it would be a spectacular failure

Dr. ARUN V J
Apr 93 min read


TME 59: Understanding Rare Blood Groups and the Importance of Rare Blood Donor Registries
are blood groups remind us of humanity’s incredible diversity—and the importance of standing together to protect one another. By supporting

Dr. ARUN V J
Apr 23 min read
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