Normal Lab Values

Question 1

CBC

Answer 1

Complete Blood Count:

• white blood cell count
• red blood cell count
• hemoglobin (Hgb)
• hematocrit (Hct)
• mean corpuscular volume (MCV)
• platelet count (plt)

Question 2

White blood cell count (cells/mL)

Answer 2

4,500-10,000 cells/mL

Question 3

Red blood cell count (RBC x 10^6)

Answer 3

(4.0-5.5) x 10^6 cells

Question 4

Hemoglobin (g/dL)

Answer 4

12.0-16.5 g/dL
Males: 13.8-17.2 g/dL
Females: 12.1-15.1 g/dL

Question 5

Hematocrit (%)

Answer 5

36-50%
Males: 40.7-50.3%
Females: 36.1-44.3%

Question 6

Mean corpuscular volume (MCV)

Answer 6

80-100

Question 7

Platelet count (plt)

Answer 7

100,000-450,000

Question 8

Complete Metabolic Panel (CMP)

Answer 8

• Sodium (Na)
• Potassium (K)
• Chloride (Cl)
• Bicarbonate (HCO3)
• BUN: blood urea nitrogen
• Creatinine (Cr)
• Glucose (Glu)

Question 9

Sodium (Na) (mEq/L)

Answer 9

135-147 mEq/L

Question 10

Potassium (K) (mEq/L)

Answer 10

3.5-5.2 mEq/L

Question 11

Chloride (Cl) (mEq/L)

Answer 11

95-107 mEq/L

Question 12

Bicarbonate (HCO3) (mEq/L)

Answer 12

23-29 mEq/L

Question 13

BUN, blood urea nitrogen (mg/dL)

Answer 13

7-20 mg/dL
Males: 8-24 mg/dL
Females: 6-21 mg/dL

Question 14

Creatinine (Cr) (mg/dL)

Answer 14

0.5-1.4 mg/dL
Males: 0.8-1.3
Females: 0.6-1.1

Question 15

Glucose (Glu) (mg/dL)

Answer 15

60-110 mg/dL

Question 16

Total bilirubin (TB) (mg/dL)

Answer 16

0.1-1.2 mg/dL

Question 17

Alkaline phosphatase (alk phos) (IU/L)

Answer 17

33-153 IU/L

Question 18

SGOT (AST) (IU/L)

Answer 18

<35 IU/L

Elevated in hepatitis

Question 19

SGPT (ALT) (IU/L)

Answer 19

<35 IU/L

Question 20

Albumin (Alb) (g/dL)

Answer 20

3.2-5 g/dL

Question 21

Calcium (Ca) (mg/dL)

Answer 21

8.8-10.3 mg/dL

Question 22

Phosphate (mg/dL)

Answer 22

2.5-4.5 mg/dL

Question 23

Magnesium (mEq/L)

Answer 23

1.6-2.4 (mEq/L)

Question 24

Coagulation studies

Answer 24

Used to dtm the clotting tendency of blood

• Protime (PT) = extrinsic pathway
• Partial thromboplastin time (PTT) = intrinsic pathway
• International Normalized Ratio (INR=PT test/PT normal)

Question 25

Protime (PT)

Answer 25

10-14 seconds

Question 26

(PTT)

Answer 26

25-39 seconds

Question 27

International Normalized Ratio (INR)

Answer 27

0.8-1.2

=PT test/PT normal

Question 28

Human chorionic gonadotropin

Answer 28

Not pregnant: 0-5 mIU/mL

Hormone produced during pregnancy, made by the placenta after conception