Common Lab Values 1

Question 1

Alanine aminotransferase (ALT), serum

Answer 1

8-20 U/L

Question 2

Aspartate aminotransferase (AST), serum

Answer 2

8-20 U/L

Question 3

Bilirubin, serum (adult) Total // Direct

Answer 3

0.1-1.0 mg/dL // 0.0-0.3 mg/dL

Question 4

Calcium, serum (Ca2+)

Answer 4

8.4-10.2 mg/dL

Question 5

Sodium (Na+)

Answer 5

135-147 mEq/L

Question 6

Potassium (K+)

Answer 6

3.5-5.0 mEq/L

Question 7

Bicarbonate (HCO3–)

Answer 7

22-28 mEq/L

Question 8

Chloride (Cl–)

Answer 8

95-105 mEq/L

Question 9

pH

Answer 9

7.35-7.45

Question 10

PCO2

Answer 10

33-45 mm Hg

Question 11

PO2

Answer 11

75-105 mm Hg

Question 12

Glucose, serum (fasting and postprandial)

Answer 12

Fasting: 70-110 mg/dL

2-h postprandial: < 120 mg/dL

Question 13

Osmolality, serum

Answer 13

275-295 mOsmol/kg H2O

Question 14

Albumin

Answer 14

3.5-5.5 g/dL

Question 15

Urea nitrogen, serum (BUN)

Answer 15

7-18 mg/dL

Question 16

Uric acid, serum

Answer 16

3.0-8.2 mg/dL