ASCP Reference Ranges & Formulas

All reference ranges & formulas needed for ASCP

Fasting Plasma Glucose

Normal < 100 mg/dL

Diabetic >126 mg/dL

Random Plasma Glucose

Normal <200 mg/dL

Diabetic >200 mg/dL

Oral Glucose Tolerance Test (OGTT) 2 hours

Normal <140 mg/dL

Diabetic >200 mg/dL

Hemoglobin A1c

Normal <5.7%
Diabetic >6.5%

Sodium (Na)

135-145 mmol/L

Potassium (K+)

3.5-5.1 mmol/L

Chloride (Cl-)

98-107 mmol/L

Calcium (Ca+)

8..5-10.2 mmol/L

pH

7.35-7.45

pCO2

35-45 mmHg

pO2

80-100 mmHg

HCO3-

22-26 mmol/L

[HCO3-] / [pCO2]

20:1 Ratio of bicarbonate to CO2

Total CO2

23-27 mmol/L

O2 Saturation

94-100%

BE (base excess)

0± 2

Total protein (serum)

6.5-8.3 g/dL

Albumin 

3.5-5.0 g/dL

A/G ratio albumin/globulin

1.5-2.5

GFR specific gravity

1.010-1.025

GFR Glomerular filtration rate

120-130 mL/min/1.73 m²

Anion gap

10-20 mmol/L

Blood urea nitrogen (BUN)

7-20 mg/dL

Creatinine Clearance Rate (CrCl)

93-131 mL/min

Plasma osmolality

275-300 mOsm/Kg

Urine Osmolality

300-900 mOsm/Kg

Urine Protein

Negative

Total Bilirubin

0.2-1.2 mg/dL

Iron (serum)

50-160 ug/dL

Lead

<3.5 ug/dL

Total cholesterol

<200 mg/dL

140-200 mg/dL

LDL

<100 mg/dL

HDL

>60 mg/dL

Triglyceride

<150 mg/dL

70-150 mg/dL

Lipoprotein (a)

<30 mg/dL

WBC count

4.0-11.0 × 10³ /uL

RBC count

5.0-6.0 × 10³ /uL

Hemoglobin (Hgb)

12-18 g/dL

Hematocrit (Hct)

35%-50%

Mean Corpuscular Volume (MCV)

76-100 fL

Mean Corpuscular Hemoglobin (MCH)

26-34 pg

Mean Corpuscular Hemoglobin Concentration (MCHC)

32-36 g/dL

Platelet Count

150-450 × 10³ /uL