Diagnostics·Diagnostics
Venous blood gas
Informed by recognized medical guidance
Overview
A venous blood gas (VBG) test measures the levels of oxygen, carbon dioxide, and pH in blood taken from a vein. It helps doctors check how well your lungs are working and whether your body’s acid-base balance is normal.
Key facts
- A VBG is a quick blood test usually done from a vein in your arm or hand.
- It helps evaluate how effectively your lungs are exchanging oxygen and carbon dioxide.
- Results can guide treatment for breathing problems, kidney issues, or severe infections.
Yes, VBG is a common test in hospitals, especially for people with serious illnesses or breathing difficulties.
It is often done for people with lung diseases like COPD or pneumonia, kidney failure, diabetes complications, or anyone in intensive care with unstable vital signs.