ABG and ACID-BASE BALANCE

Question 1

Normal plasma pH

Answer 1

7.35-7.45

Question 2

Arterial Partial Pressure of Carbon Dioxide

Answer 2

Normal range: 35–45 mm Hg (4.655–5.985 kPa)

Question 3

Arterial Partial Pressure of Oxygen

Answer 3

Normal range: 80–100 mm Hg (10.64–13.3 kPa)

Question 4

Venous Total Carbon Dioxide Content

Answer 4

Normal range: 22–30 mEq/L

Question 4

Arterial Bicarbonate

Answer 4

Normal range: 22–26 mEq/L (22–26 mmol/L)

Question 5

Anion Gap

Answer 5

Normal range: 3–16 mEq/L (3–16 mmol/L)

Question 6

Formula for anion gap

Answer 6

AG = Na – (Cl +HCO3 )

Question 7

Corrected anion gap formula

Answer 7

Corrected AG=AG + 2.5 (4.4 g/dL – measured albumin)

Question 8

Arterial oxygen saturation

Answer 8

Normal range: 93–100%

Question 9

Venous Oxygen Saturation

Answer 9

Normal range: 65–75%

Question 10

Normal serum lactate

Answer 10

0.6–2 mmol/L