ABG

Normal Ranges

Interpretation

Signs and Symptoms

Random ABG

100

The normal range of SaO2

what is 95-100%?

100

Lowered pH, raised PaCO₂

↓pH ↑ PaCO₂

What is Resiratory Acidosis?

100

Drowsiness, drop in BP, raised PaCO2

What are signs of Respiratory Acidosis?

100

What condition is indicated by the following ABG values: pH 7.25, PaCO₂ 60 mmHg, HCO₃ 23 mEq/L?

Respiratory acidosis

100

A client’s ABGs show: pH 7.52, PaCO₂ 40 mmHg, HCO₃ 30 mEq/L. Identify the condition.

Metabolic alkalosis

200

The normal range of pH

What is 7.35-7.45?

200

Lowered pH and raised HCO₃

↓pH ↑HCO₃

What is Metabolic Acidosis?

200

Tachypnoea, tingling of extremities, low PaCO₂

What are signs of respiratory alkalosis

200

A client has ABG results of: pH 7.50, PaCO₂ 28 mmHg, HCO₃ 22 mEq/L. What is the condition?

Respiratory alkalosis

200

What condition is indicated by the following ABG values: pH 7.25, PaCO₂ 60 mmHg, HCO₃ 23 mEq/L?

Respiratory acidosis

300

The normal range of HCO3

What is 22-26 mmol/litre?

300

Raised pH and lowered PaCO₂

↑pH ↓pCO₂

What is Respiratory alkalosis?

300

Confusion, dysrhythmias, elevated HCO₃

What are signs of Metabolic alkalosis?

300

A client has the following ABG results: pH 7.30, PaCO₂ 55 mmHg, HCO₃ 24 mEq/L. What condition is indicated?

Respiratory acidosis

300

ABG results show: pH 7.18, PaCO₂ 42 mmHg, HCO₃ 18 mEq/L. What condition is this?

Metabolic acidosis

400

The normal range of PaCo2

What is 35-45 mmHg?

400

Raised pH and raised HCO₃

↑pH ↑HCO₃

What is Metabolic Alkalosis

400

severe vomiting and diuretics

What are some causes of metabolic alkalosis?

400

A client’s ABG values are: pH 7.48, PaCO₂ 30 mmHg, HCO₃ 22 mEq/L. What is the condition?

Respiratory alkalosis

400

A client’s ABGs are: pH 7.55, PaCO₂ 37 mmHg, HCO₃ 31 mEq/L. What condition is present?

Metabolic alkalosis

500

The normal range of PaO2

What is 80-100 mmHg

500

Normal pH raised PaCO₂ and raised HCO₃

What is compensated either resp. acidosis or metabolic alkalosis?

500

DKA, severe diarrohea, renal failure and shock

What are causes of metabolic acidosis?

500

The ABG results for a client are: pH 7.20, PaCO₂ 38 mmHg, HCO₃ 16 mEq/L. What condition is present?

Metabolic acidosis

500

ABGs reveal: pH 7.47, PaCO₂ 32 mmHg, HCO₃ 22 mEq/L. Identify the condition.

Respiratory alkalosis