Chemistry Reference Ranges

Question 1

Albumin (serum)

Answer 1

3.5-5.5 g/dL

Question 2

Anion Gap (serum, calculated)

Answer 2

7-16 mmol/L

Question 3

HCO3- (plasma)

Answer 3

22-29 mmol/L

Question 4

Bilirubin, Conjugated aka “Direct”

Answer 4

0.0-0.2 mg/dL

Question 5

Bilirubin, Total

Answer 5

0.2-1.0 mg/dL

Question 6

Bilirubin, Unconjugated aka “Indirect”

Answer 6

0.2-0.8 mg/dL

Question 7

BUN (serum/plasma)

Answer 7

6-20 mg/dL

Question 8

Calcium (serum/plasma)

Answer 8

9.0-10.1 mg/dL

Question 9

Ca++ (ionized, serum/plasma)

Answer 9

4.6-5.3 mg/dL

Question 10

Chloride (serum/plasma)

Answer 10

98-107 mmol/L

Question 11

Cholesterol (serum/plasma)

Answer 11

140-200 mg/dL

Question 12

Creatinine (serum/plasma)

Answer 12

0.6-1.2 mg/dL

Question 13

Creatinine Clearance (plasma AND urine)

Answer 13

107-139 mL/min (M)
87-107 mL/min (F)

Question 14

Glucose (fasting, plasma)

Answer 14

70-100 mg/dL

Question 15

HCO3- (Arterial blood)

Answer 15

22-26 mm Hg (mmol/L)

Question 16

HDL-C (serum/plasma)

Answer 16

40-75 mg/dL

Question 17

HBA1c (whole blood)

Answer 17

4.0-5.7%

Question 18

Iron (serum)

Answer 18

35-150 ug/dL

Question 19

Iron % Saturation (serum)

Answer 19

20-50%

Question 20

Total Iron Binding Capacity (serum)

Answer 20

255-450 ug/dL

Question 21

Ketone Bodies (serum)

Answer 21

Negative

Question 22

LDL-C (serum/plasma)

Answer 22

50-130 mg/dL

Question 23

Magnesium (serum)

Answer 23

1.7-2.4 mg/dL

Question 24

Osmolality (serum)

Answer 24

275-295 mOsm/kg

Question 25

Osmolar Gap (serum)

Answer 25

5-10 mOsm/kg

Question 26

pH (Arterial WB/serum)

Answer 26

7.35-7.45

Question 27

pCO2 (Arterial Blood)

Answer 27

35-45 mm Hg

Question 28

pO2 (Arterial Blood)

Answer 28

85-105 mm Hg
55-70 mm Hg (Denver)

Question 29

Potassium (serum)

Answer 29

3.5-5.1 mmol/L

Question 30

Total Protein (serum)

Answer 30

6.5-8.6 g/dL

Question 31

O2 Saturation (Arterial Blood)

Answer 31

> 95%

Question 32

Sodium (serum/plasma)

Answer 32

135-145 mmol/L

Question 33

TCO2 (total CO2, Arterial Blood)

Answer 33

23-27 mmol/L

Question 34

Triglycerides (serum/plasma)

Answer 34

60-150 mg/dL

Question 35

Troponin (serum/plasma)

Answer 35

<10 ng/mL (normal)
>100 ng/mL (myocardial infarction)

Question 36

Uric Acid (serum/plasma)

Answer 36

3.5-7.2 mg/dL (M)
2.6-6.0 mg/dL (F)

Question 37

24 hour Urine Protein

Answer 37

<150 mg/d

Question 38

24 hour Urine Albumin

Answer 38

30-300 mg/d

Question 39

Albumin Creatinine Ratio (ACR) diagnostic for albuminuria

Answer 39

> 30 mg/g

Question 40

Potassium Critical Values

Answer 40

<2.8 or >6.0 mmol/L