Chemistry Reference Ranges

Question 1

Arterial blood gases: pH

Answer 1

pH 7.35 - 7.45

Question 2

Arterial blood gases: pCO2

Answer 2

35 - 45 mmHg (4.7-5.9 kPa)

Question 3

Arterial blood gases: pO2

Answer 3

> 80 mmHg (>10.6 kPa)

Question 4

Arterial blood gases: O2 saturation

Answer 4

95%

Question 5

Arterial blood gases: HCO3- (bicarbonate)

Answer 5

23 - 29 mmol/L

Question 6

Total CO2

Answer 6

22 - 33 mmol/L

Question 7

Chloride

Answer 7

98 - 107 mmol/L

Question 8

Potassium

Answer 8

3.5 - 5.1 mmol/L

Question 9

Sodium

Answer 9

136 - 145 mmol/L

Question 10

Creatinine

Answer 10

0.8 - 1.2 mg/dL (71-106 umol/L)

Question 11

Fasting glucose

Answer 11

74 - 100 md/dL (4.1-5.6 mmol/L) for serum or plasma

Question 12

Hemoglobin A1C

Answer 12

< 5.7% (<39 mmol/L)

Question 13

Haptoglobin

Answer 13

30 - 200 mg/dL

Question 14

Blood urea nitrogen (BUN)

Answer 14

6 - 20 mg/dL (2.1 - 7.1 mmol/L)