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Industry: Email Alert RSS FeedTable of reference intervals
Medical Laboratory Observer, August, 2004
Reference interval
Specimen Test (conventional units)
S Albumin 3.8-5.0 g/dL
B Base excess -3.3 to 2.3 mmol/L
P Bicarbonate 21-28 mmol/L
S/P Bilirubin, conjugated <0.3 mg/dL
S/P Bilirubin, total 0.1-1.2 mg/dL
S/P Calcium, total 9.2-11.0 [micro]g/dL
S/P C[O.sub.2] content,
venous 24-30 mmol/L
P Chloride 95-103 mEq/L
S/P Cholesterol (NCEP
recommendation) 140-200 mg/dL
P Cortisol (a.m.) 5-23 [micro]g/dL
S/P Creatinine 0.6-1.2 mg/dL
Creatinine clearance 87-139 mL/min/1.74 [M.sup.2]
S/P Ferritin (men) 15-200 ng/mL
S/P Ferritin (women) 12-150 ng/mL
P Fibrinogen 200-400 mg/dL
S/P Folate >2.3 ng/mL
S/P Glucose, fasting 70-110 mg/dL
S Haptoglobin 60-270 mg/dL
B Hematocrit (men) 41.5-50.4 %
B Hematocrit (women) 35.9-44.6 %
B Hemoglobin 12-18 g/dL
S/P Iron, total 60-150 [micro]g/dL
S/P Iron binding capacity 250-400 [micro]g/dL
S/P Lactic acid, venous
(lactate) 5-20 mg/dL
B Lead (CDC
recommendation) <10 [micro]g/dL
S/P Lithium, therapeutic 0.5-1.4 mEq/L
S/P Magnesium 1.3-2.1 mEq/L
B MCH (RBC index) 27.5-33.2 pg/cell
B MCHC (RBC index) 33.4-35.5 %
B MCV (RBC index) 80-96 fL
S/P Osmolality 280-295 m0sm/kg
B pC[O.sub.2] (arterial) 35-40 mm Hg
B pH (arterial) 7.38-7.44
S/P Phosphate (as P) 2.3-4.7 mg/dL
B p[O.sub.2] (arterial) 75-100 mm Hg
B Platelet count 150-400 [10.sup.3]/[mm.sup.3]
P Potassium 3.8-5.0 mEq/L
S Protein, total 6.0-7.8 g/dL
B RBC count (men) 4.5-5.9 [10.sup.6]/[mm.sup.3]
B RBC count (women) 4.5-5.1 [10.sup.6]/[mm.sup.3]
S/P Salicylate, therapeutic 15-30 mg/dL
P Sodium 136-142 mEq/L
S Thyroxine, free 0.9-2.3 ng/dL
S Thyroxine (T4), total 5.5-12.5 [micro]g/dL
S/P Triglyceride (as
triolein) 10-190 mg/dL
S/P Urea nitrogen (BUN) 8-23 mg/dL
S/P Uric acid (urate) 2.7-8.5 mg/dL
S Vitamin [B.sub.12] 160-950 pg/mL
B WBC count 4.4-11.0 [10.sup.3]/[mm.sup.3]
S Zinc 50-150 [micro]g/dL
Conversion factor Reference interval
Specimen (multiply by) (SI units)
S 10 38-50 g/L
B 1 -3.3 to 2.3 mmol/L
P 1 21-28 mmol/L
S/P 17.1 <5 [micro]mol/L
S/P 17.1 2-21 [micro]mol/L
S/P 0.25 2.3-2.8 mmol/L
S/P 1 24-30 mmol/L
P 1 95-103 mmol/L
S/P 0.0259 3.6-5.2 mmol/L
P 27.6 138-635 nmol/L
S/P 88.4 53-106 [micro]mol/L
0.0167 1.4-2.3 mL/s
S/P 1 15-200 [micro]g/L
S/P 1 12-150 [micro]g/L
P 0.01 2.00-4.00 g/L
S/P 2.265 >5.0 nmol/L
S/P 0.0556 3.9-6.1 mmol/L
S 0.01 0.6-2.7 g/L
B 0.01 0.415-0.504 Vol fraction
B 0.01 0.359-0.446 Vol fraction
B 10 120-180 g/L
S/P 0.179 10.7-26.9 [micro]mol/L
S/P 0.179 44.8-71.6 [micro]mol/L
S/P 0.111 0.6-2.2 mmol/L
B 0.048 <0.48 [micro]mol/L
S/P 1 0.5-1.4 mmol/L
S/P 0.5 0.65-1.05 mmol/L
B 1 27.5-33.2 pg/cell
B 0.01 0.334-0.355 concentration fract
B 1 80-96 fL
S/P 1 280-295 mmol/kg
B 0.133 4.7-5.3 kPa
B 1 7.38-7.44
S/P 0.323 0.74-1.52 mmol/L
B 0.133 10-13.3 kPa
B [10.sup.6] 150-400 [10.sup.9]/L
P 1 3.8-5.0 mmol/L
S 10 60-78 g/L
B [10.sup.6] 4.5-5.9 [10.sup.12]/L
B [10.sup.6] 4.5-5.1 [10.sup.12]/L
S/P 0.073 1.1-2.2 mmol/L
P 1 136-142 mmol/L
S 13 12-30 pmol/L
S 12.87 71-161 nmol/L
S/P 0.0113 0.11-2.15 mmol/L
S/P 0.357 2.9-8.2 mmol/L
S/P 0.05948 0.16-0.51 mmol/L
S 0.74 118-703 pmol/L
B [10.sup.6] 4.4-11.0 [10.sup.9]/L
S 0.153 7.7-23.0 [micro]mol/L
Specimens: B, whole blood; P, plasma; S, serum. Reference intervals
depend on test method and the demographics of the normal population
used.
Source: Henry JD, ed. Clinical Diagnosis and Management by Laboratory
Methods. 19th ed. Philadelphia, PA; WB Saunders Co.; 1996 and Burstis CA
and Ashwood ER, Tietz Textbook of Clinical Chemistry. 3rd ed.
Philadelphia, PA; WB Saunders Co; 1999.
Revised by Richard M. Rocco, PhD, Center for Biomedical Laboratory
Science, San Francisco State University, San Francisco, CA.
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