Lab Values

Question 1

Alanine aminotransferase (ALT)

Answer 1

8-20 U/L

Question 2

Amylase, serum

Answer 2

25-125 U/L

Question 3

Aspartate aminotransferase (AST)

Answer 3

8-20 U/L

Question 4

Bilirubin, serum (adult - total/direct)

Answer 4

0.1-1.0 mg/dL / 0-0.3 mg/dL

Question 5

Calcium, serum

Answer 5

8.4-10.2 mg/dL

Question 6

Cholesterol, serum

Answer 6

140-200 mg/dL

Question 7

Creatinine, serum

Answer 7

0.6-1.2 mg/dL

Question 8

Sodium, serum

Answer 8

135-147 mEq/L

Question 9

Chloride, serum

Answer 9

95-105 mEq/L

Question 10

Potassium, serum

Answer 10

3.5-5.0 mEq/L

Question 11

Bicarbonate, serum

Answer 11

22-28 mEq/L

Question 12

PO2 arterial blood gas

Answer 12

75-105 mmHg

Question 13

PCO2 arterial blood gas

Answer 13

33-44 mmHg

Question 14

pH

Answer 14

7.35-.745

Question 15

Glucose, serum

Answer 15

Fasting: 70-110 mg/dL

2h postprandial: < 120 mg/dL

Question 16

Growth hormone - arginine stimulation

Answer 16

Fasting: < 5 ng/mL

Provocative stimuli: > 7 ng/mL

Question 17

Osmolality, serum

Answer 17

275-295 mOsm/kg

Question 18

Phosphate (alkaline), serum

Answer 18

20-70 U/L

Question 19

Phosphorus (inorganic), serum

Answer 19

3.0-4.5 mg/dL

Question 20

Proteins, serum

Answer 20

Total - 6.0-7.8 g/dL
Albumin - 3.5-5.5 g/dL
Globulins: 2.3-3.5 g/dL

Question 21

Urea nitrogen, serum (BUN)

Answer 21

7-18 mg/dL

Question 22

Uric acid, serum

Answer 22

3.0-8.2 mg/dL

Question 23

CSF Glucose

Answer 23

40-70 mg/dL

Question 24

Erythrocyte count

Answer 24

Male: 4.3-5.9 million/mm3
Female: 3.5-5.5 million/mm3

Question 25

Hematocrit

Answer 25

Male: 41-53%
Female: 36-46%

Question 26

Hemoglobin, blood

Answer 26

Male: 13.5-17.5 g/dL
Female: 12.0-16.0 g/dL

Question 27

Reticulocyte count

Answer 27

0.5-1.5% of red cells

Question 28

Hemolgobin, plasma

Answer 28

1-4 mg/dL

Question 29

Leukocyte count and differential

Answer 29

Leukocyte count: 4500-11,000/mm3
Segmented neutrophils: 54-62%
Band forms: 3-5%
Eosinophils: 1-3%
Basophils: 0-0.75%
Lymphocytes: 25-33%
Monocytes: 3-7%

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Question 30

Mean corpuscular hemoglobin

Answer 30

25.4-34.6 pg/cell

Question 31

Mean corpuscular volume

Answer 31

80-100 um3

Question 32

Platelet count

Answer 32

150,000-400,000/mm3

Question 33

Prothrombin time

Answer 33

11-15 seconds

Question 34

Activated partial thromboplastin time

Answer 34

25-40 seconds

Question 35

Sedimentation rate, erythrocyte (Westergren)

Answer 35

Male: 0-15 mm/h
Female: 0-20 mm/h

Question 36

Proteins in urine, total

Answer 36

< 150 mg/24 hours