Lab Tests

ABG (Arterial Blood Gas)

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ABG (Arterial Blood Gas), in Visit Clinic

Measures blood oxygen, carbon dioxide, pH, and bicarbonate to assess breathing and acid-base balance in the body in Visit Clinic.

Centre Visit

₹

SAMPLE TYPE

Blood

FASTING REQUIRED

GENDER

Male/Female

GET REPORTS IN

24 hours

TEST INCLUDED

20K+Customers

CertifiedLabs

4.5+Rating

ProvenAccuracy

What is a ABG (Arterial Blood Gas) Test in Visit Clinic?

An arterial blood gas (ABG) test measures oxygen (PaO2), carbon dioxide (PaCO2), blood pH, bicarbonate (HCO3-), and oxygen saturation. These values show how well your lungs move oxygen into the blood and remove carbon dioxide. They also reflect the body's acid-base balance. ABG helps detect respiratory failure, COPD or asthma exacerbations, shock, sepsis, and metabolic acidosis or alkalosis. Doctors use ABG results to decide if you need oxygen, changes to a ventilator, or treatments for acid-base problems. Results guide emergency care and ongoing management in hospitals. The test is fast, done at bedside, and gives immediate information about breathing and metabolic status. It is commonly used in emergency rooms and intensive care units. Small arterial blood is drawn usually from the wrist.

ABG (Arterial Blood Gas) Test Preparation in Visit Clinic

No special preparation is required.

ABG (Arterial Blood Gas) Test Parameters in Visit Clinic

The ABG (Arterial Blood Gas) test evaluates various parameters. Here are the main parameters checked:

Single test

Why Take a ABG (Arterial Blood Gas) Test in Visit Clinic?

ABG (Arterial Blood Gas) is used in blood gas panels for emergency and ICU care. Doctors order it for sudden shortness of breath, low oxygen, confusion, or to monitor ventilated patients. It helps diagnose respiratory failure, COPD or asthma exacerbations, and acid-base disorders. Abnormal results come from lung or kidney disease, heart failure, medications, or severe infection. A family history of lung disease can increase need for testing.

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Frequently asked questions

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What is a normal ABG level in Visit Clinic?

Normal arterial blood gas (ABG) values: pH 7.35–7.45; PaCO2 35–45 mmHg; PaO2 75–100 mmHg; HCO3− 22–26 mEq/L; oxygen saturation (SaO2) about 95–100%; base excess −2 to +2 mmol/L. Values vary slightly by age and lab; interpret ABG in the clinical context, considering ventilation, oxygenation and acid–base balance.

What is an ABG blood test in Visit Clinic?

An arterial blood gas (ABG) test measures oxygen (PaO2), carbon dioxide (PaCO2), blood pH and bicarbonate (HCO3−) from an arterial sample to assess lung function and the body's acid–base balance. It's used in emergencies and chronic respiratory or metabolic conditions to guide oxygen therapy, ventilation and treatment decisions. The sample is usually taken from the radial or femoral artery and may cause brief pain, bleeding or bruising.

What are the 4 parameters of ABG in Visit Clinic?

The four primary ABG parameters are pH, PaCO2, PaO2, and HCO3−. pH (normal 7.35–7.45) indicates acid–base status. PaCO2 (35–45 mmHg) reflects the respiratory/ventilatory component. HCO3− (22–26 mmol/L) represents the metabolic/renal buffer. PaO2 (75–100 mmHg) assesses arterial oxygenation. Interpretation combines pH with PaCO2 and HCO3− to distinguish respiratory versus metabolic acid–base disorders.

What are the 6 steps in abg analysis in Visit Clinic?

Six steps in ABG analysis: 1) Verify sample and patient details, including inspired oxygen (FiO2); 2) Check pH to identify acidosis or alkalosis; 3) Assess PaCO2 for respiratory contribution; 4) Assess HCO3– or base excess for metabolic contribution; 5) Determine the primary disorder and compensation (acute vs chronic); 6) Evaluate oxygenation (PaO2, SaO2, A–a gradient) and clinical context.

Is an abg test painful in Visit Clinic?

An arterial blood gas (ABG) involves a quick needle puncture of an artery. Most people feel a sharp sting and pressure during the draw and some aching or soreness afterward for a day or two. Local numbness or bruising can occur. Serious complications (infection, arterial damage, thrombosis) are rare. Clinicians may use topical anesthetic and firm pressure afterward to reduce pain and bleeding.

What diseases affect ABG values in Visit Clinic?

ABG values are altered by respiratory conditions (COPD, asthma, pneumonia, pulmonary embolism, ARDS, respiratory muscle weakness, hypoventilation from drugs) and metabolic disorders (diabetic ketoacidosis, renal failure, lactic acidosis, diarrhea, toxin ingestion). Vomiting, diuretics, and hyperaldosteronism cause metabolic alkalosis. Sepsis and hypoxemia can cause mixed respiratory and metabolic acid–base disturbances. Also, salicylate poisoning produces mixed patterns.

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