Clinical Insights

Why Is IV Saline Always 0.9%? The Life-Saving Science Behind a Simple Number

November 19, 2025September 20, 2025 by Shrikant Bhosale

When you visit a hospital, the most common sight is a patient connected to a transparent IV drip bag.That fluid is Normal Saline (0.9% NaCl). But the real question is— 👉 Why exactly 0.9%?👉 Why not 1%? Why not 0.5%?👉 What chemistry & medical logic decides this number? Let’s decode this life-saving mystery. Step 1: …

When the Body’s Balance Fails: The Science of Shock Explained Simply

November 19, 2025September 20, 2025 by Shrikant Bhosale

You learned in the previous article what homeostasis is — the body’s natural system that keeps everything in balance. Temperature, blood pressure, sugar levels, pH, water–salt balance — all are constantly regulated by feedback systems. When this balance is disturbed, the body immediately tries to fix it. But sometimes the internal or external situation becomes …