Normal Lab Values

Question 1

Serum Sodium

Answer 1

135-145

Question 2

Serum Potassium

Answer 2

3.5-5.1

Question 3

Serum Chloride

Answer 3

98-106

Question 4

Serum HCO3

Answer 4

22-29

Question 5

BUN

Answer 5

7-18

Question 6

Creatinine

Answer 6

0.6-1.2

Question 7

Glucose

Answer 7

70-115

Question 8

Anion Gap

Answer 8

8-12

Question 9

Serum Osmolality

Answer 9

275-295

Question 10

WBC

Answer 10

4500 - 11000

Question 11

Hemoglobin

Answer 11

Males = 13.5-17.5
Females = 12-16

Question 12

Platelets

Answer 12

150,000 to 450,000

Question 13

Normal WBC Differential

Answer 13

PMNs: 55-65%
Lymphocytes: 23-33%
Monocytes: 3-7%

Question 14

Normal MCV:

Answer 14

80-100 fL

Question 15

Normal HbA1c:

Answer 15

5.0-6.5

Question 16

Normal haptoglobin:

Answer 16

26-185

Question 17

Normal PT

Answer 17

11-15 seconds

Question 18

Normal aPTT

Answer 18

20-35 seconds

Question 19

Normal bleeding time

Answer 19

2-7 minutes

Question 20

Normal ESR

Answer 20

Men < 15

Women < 20

Question 21

Normal total calcium

Answer 21

8.4 - 10.2

Question 22

Normal ionized calcium

Answer 22

4.65-5.28

Question 23

Normal phosphate

Answer 23

2.7-4.5

Question 24

Normal Magnesium

Answer 24

1.3-2.1

Question 25

Normal serum albumin

Answer 25

3.5-5.5

Question 26

Normal T-Bili

Answer 26

0.2 - 1

Question 27

Normal Conjugated Bili

Answer 27

0 - 0.2

Question 28

Normal Lipase

Answer 28

10-140

Question 29

Normal amylase

Answer 29

25-125

Question 30

Normal total cholesterol:

Answer 30

<200

Question 31

Normal LDL Cholesterol

Answer 31

<130

Question 32

Normal HDL Cholesterol

Answer 32

Men > 29

Women > 35

Question 33

Normal Venous Lactate

Answer 33

0.5 - 1

Question 34

Normal Iron

Answer 34

Men: 65-175
Women: 50-170

Question 35

Normal Troponin:

Answer 35

<0.01

Question 36

Normal arterial pH

Answer 36

7.35 - 7.45

Question 37

Normal PaCO2

Answer 37

35-45 mmHg

Question 38

Normal PaO2

Answer 38

80-100 mmHg

Question 39

Normal arterial HCO3

Answer 39

21-27

Question 40

Normal SaO2

Answer 40

95-98%

Question 41

Normal Base Excess:

Answer 41

+/- 2

Question 42

Normal Minimum Urine Volume:

Answer 42

0.5 - 1.0 ml/Kg/hr

Question 43

CSF Values:

Normal Pressure:
Normal WBC:
Normal Protein:
Normal Glucose:

Answer 43

Pressure: 70-180 mm
WBCs: 0-5/µl mononuclear cells
Protein: 15-45
Glucose: 40-70

Question 44

LFTs:

AST:
ALT:
ALK PHOS:

Answer 44

AST = 10 - 34 IU/L.
ALT = 10 - 40 IU/L
Alk Phos = 44 - 147 IU/L

Question 45

Normal FeNa

Answer 45

1-2%

Question 46

FeNa of <1% means…

Answer 46

Pre-renal failure

Question 47

FeNa of >2-3% means…

Answer 47

Intrinsic renal failure (ATN, glomerulonephritis, etc)