The Arterial Blood Gases (ABG) test is a special blood test that checks how well your body is handling oxygen and breathing.

It measures:

• Oxygen levels – how well your lungs are supplying oxygen
• Carbon dioxide levels – how well your body is removing waste gases
• pH (acid-base balance) – whether your body’s balance is normal

This test helps doctors understand how well your lungs and kidneys are working and whether your body is getting enough oxygen.

It is often used in serious conditions like breathing problems or critical illness, where quick and accurate information is needed.

In simple terms, the ABG test gives a quick picture of your breathing and overall body balance so doctors can take fast action.