Arterial Blood Gases (ABG) Test
About the procedure
Arterial Blood Gas (ABG) analysis measures the levels of oxygen (O₂), carbon dioxide (CO₂), and blood pH to assess lung function and acid-base balance. It helps detect respiratory, metabolic, or kidney disorders and guides treatment in critically ill patients. The test is performed by drawing a small amount of blood from an artery, usually the radial artery in the wrist.
Care before the procedure
- No special preparation is usually required.
- Inform your doctor if you are taking blood thinners or have bleeding disorders.
- Relax the arm to facilitate easier blood draw.
- Remove tight clothing from the wrist area for access.
Care during the procedure
- The skin over the artery is cleaned with antiseptic.
- A small needle is inserted into the artery, and a small blood sample is taken.
- Firm pressure is applied after the draw to prevent bleeding or bruising.
- The procedure usually takes less than 5 minutes.
Care after the procedure
- Keep pressure on the site for 5–10 minutes to prevent bleeding.
- Avoid heavy lifting or strenuous activity with that arm for a few hours.
- Minor bruising or tenderness may occur, which is normal.
- Report persistent pain, swelling, or bleeding at the puncture site.
Eligibility
- Patients with shortness of breath or difficulty breathing.
- Critically ill patients in ICU or on ventilators.
- Suspected respiratory or metabolic disorders (e.g., COPD, asthma, kidney disease).
- Monitoring oxygen therapy or mechanical ventilation.
- Detecting acid-base imbalances in conditions like diabetic ketoacidosis.
Relevant Specialties

Internal Medicine
Internal Medicine is a medical specialty focused on the prevention, diagnosis, and management of adult health conditions.
It plays a central role in managing both acute and chronic illnesses, particularly those affecting multiple systems within the body.
At KIMSHEALTH, internal medicine care is guided by a comprehensive, patient-first approach that supports continuity of care and long-term health management.




