NORMAL REFERENCE LABORATORY VALUES
For Blood Plasma, or Serum

TEST REFERENCE RANGE
Acetoacetate plus acetone 0.30-2.0 mg/dl
Acetone Negative
Acid phosphatase Adults: 0.10-0.63 U/ml (Bessey-Lowry)
0.5-2.0 U/ml (Bodansky)
1.0-4.0 U/ml (King-Armstrong)
Children: 6.4-15.2 U/L


Activated partial thromboplastin time (APTT) 30-40 sec
Adrenocorticotropic hormone (ACTH) 6AM 15-100 pg/ml
6PM <50 pg/ml
Alanine aminotransferase (ALT) 5-35 IU/L
Albumin 3.2-4.5 g/dl
Alcohol Negative
Aldolase Adults: 3.0-8.2 Sibley-Lehninger units/dl
Children: approximately 2 x adult values
Newborns: approximately 4 x adult values

Aldosterone Peripheral blood:
Supine: 7.4 ± 4.2 ng/dl
Upright 1-21 ng/dl
Adrenal vein: 200-800 ng/dl


Alkaline phosphatase Adults: 30-85 ImU/ml
Children and adolescents:
<2 years: 85-235 ImU/ml
2-8 years: 65-210 ImU/ml
9-15 years: 30-300 ImU/ml (active bone growth)
16-21 years:30-200 ImU/ml




Alpha-aminonitrogen 3-6 mg/dl
Alpha-1-antitrypsin >250 mg/dl
Alpha fetoprotein (AFP) <25 ng/ml
Ammonia Adults: 15-110 ug/dl
Children: 40-80 ug/dl
Newborns: 90-150 µg/dl

Amylase 56-190 IU/L
80-150 Somogyi units/ml
Angiotensin-converting enzyme (ACE) 23-57 U/ml
Antinuclear antibodies (ANA) Negative
Antistreptolysin O (ASO) Adults: £ 160 Todd units/ml
Children:
Newborns: similar to mother's value
6 months-2 years: £ 50 Todd units/ml
2-4 years £ 160 Todd units/ml
5-12 years: £ 200 Todd units/ml




Antithyroid microsomal antibody Titer < 1:100
Antithyroglobulin antibody Titer < 1:100
Ascorbic acid (vitamin C) 0.6-1.6 mg/dl
Aspartate aminotransferase (AST, SGOT) 12-36 U/ml
5-40 IU/L
Australian antigen
(hepatitis-associated antigen, HAA)
Negative
Barbiturates Negative
Base excess Men: -3.3 to +1.2
Women: -2.4 to +2.3
Bicarbonate
(HCO 3 ¯ )
22-26 mEq/L
Bilirubin Direct (conjugated): 0.1-0.3 mg/dl
Indirect (unconjugated): 0.2-0.8 mg/dl
Total:
Adults and children: 0.1-1.0 mg/dl
Newborns: 1-12 mg/dl



Bleeding time (Ivy method) 1-9 min
Blood count (see complete blood count)
Blood gases (arterial) pH 7.35-7.45
Pco 2 35-45 mm Hg
HCO 3 22-26 mEq/L
Po 2 80-100 mm Hg
O 2 saturation 95%-100%



Blood urea nitrogen (BUN) 5-20 mg/dl
Bromide Up to 5 mg/dl
Bromosulfophthalein (BSP) <5% retention after 45min
CA 15-3 <22 U/ml
CA-125 0-35 U/ml
CA 19-9 <37 U/ml
C-reactive protein (CRP) <6 ug/ml
Calcitonin <50 pg/ml
Calcium (Ca) 9.0-10.5 mg/dl (total)
3.9-4.6 mg/dl (ionized)
Carbon dioxide content (CO 2 ) 23-30 mEq/L
Carboxyhemoglobin (COHb) 3% of total hemoglobin
Carcinoembryonic antigen (CEA) <2 ng/ml
Carotene 50-200 ug/dl
Chloride (CI - ) 90-110 mEq/L
Cholesterol 150-250 mg/dl
Clot retraction 50%-100% clot retraction in 1-2 hours,
complete retraction within 24 hours
Complement C 3 : 70-176 mg/dl
C 4 : 16-45 mg/dl
Complete blood count (CBC)
Red blood cell count (RBC) Men: 4.7-6.1 million/mm 3
Women: 4.2-5.4 million/mm 3
Infants and children: 3.8-5.5 million/mm 3
Newborns: 4.8-7.1 million/mm 3


Hemoglobin (Hgb) Men: 14-18 g/dl
Women: 12-16 g/dl (pregnancy: >11 g/dl)
Children: 11-16 g/dl
Infants: 10-15 g/dl
Newborns: 14-24 g/dl



Hematocrit (Hct) Men: 42%-52%
Women: 37%-47% (pregnancy: >33%)
Children: 31%-43%
Infants: 30%-40%
Newborns: 44%-64%



Mean corpuscular volume
(MCV)
Adults and children: 80-95 u 3
Newborns: 96-108 u 3
Mean corpuscular hemoglobin
(MCH)
Adults and children: 27-31 pg
Newborns: 32-34 pg
Mean corpuscular hemoglobin concentration
(MCHC)
Adults and children: 32-36 g/dl
Newborns: 32-33 g/dl
White blood cell count
(WBC)
Adults and children >2 yrs: 5000-10,000/cm 3
Children £ 2 yrs: 6200-17,000/mm 3
Newborns: 9000-30,000/mm 3

Differential count
Neutrophils 55%-70%
Lymphocytes 20%-40%
Monocytes 2%-8%
Eosinophils 1%-4%
Basophils 0.5%-1%
Platelet count 150,000-400,000/mm 3
Coombs' test
Direct Negative
Indirect Negative
Copper (Cu) 70-140 ug/dl
Cortisol 6-28 ug/dl (AM)
2-12 ug/dl (PM)
CPK isoenzyme (MB) <5% total
Creatinine 0.7-1.5 mg/dl
Creatinine clearance Men: 95-104 ml/min
Women: 95-125 ml/min
Creatinine phosphokinase (CPK) 5-75 mU/ml
Cryoglobulin Negative
Differential (WBC) count
Neutrophils 55%-70%
Lymphocytes 20%-40%
Monocytes 2%-8%
Eosinophils 1%-4%
Basophils 0.5%-1%
Digoxin Therapeutic level: 0.5-2.0 ng/ml
Toxic level: >2.4 ng/ml
Erythrocyte count (see complete blood count)
Erythrocyte sedimentation rate (ESR) Men: up to 15 mm/hour
Women: up to 20 mm/hour
Children: up to 10 mm/hour

Ethanol 80-200 mg/dl (mild to moderate intoxication)
250-400 mg/dl (marked intoxication)
>400 mg/dl (severe intoxication)

Euglobulin lysis test 90 min-6 hours
Fats Up to 200 mg/dl
Ferritin 15-200 ng/ml
Fibrin degradation products (FDP) <10 ug/ml
Fibrinogen (factor I) 200-400 mg/dl
Fibrinolysis/euglobulin lysis test 90 min-6 hours
Fluorescent treponemal antibody (FTA) Negative
Fluoride <0.05 mg/dl
Folic acid (Folate) 5-20 ug/ml
Follicle-stimulating hormone (FSH) Men: 0.1-15.0 ImU/ml
Women: 6-30 ImU/ml
Children: 0.1-12.0 ImU/ml
Castrate and postmenopausal: 30-200 ImU/ml


Free thyroxine index (FTI) 0.9-2.3 ng/dl
Galactose-1-phosphate uridyl transferase 18.5-28.5 U/g hemoglobin
Gammaglobulin 0.5-1.6 g/dl
Gamma-glutamyl transpeptidase (GGTP) Men: 8-38 U/L
Women: <45 years: 5-27 U/L
Gastrin 40-150 pg/ml
Glucagon 50-200 pg/ml
Glucose, fasting (FBS) Adults: 70-115 mg/dl
Children: 60-100 mg/dl
Newborns: 30-80 mg/dl

Glucose, 2-hour postprandial
(2-hour PPG)
<140 mg/dl
Glucose-6-phosphate dehydrogenase (G-6-PD) 8.6-18.6 IU/g of hemoglobin
Glucose tolerance test (GTT) Fasting: 70-115 mg/dl
30 min: <200 mg/dl
1 hour: <200 mg/dl
2 hours: <140 mg/dl
3 hours: 70-115 mg/dl
4 hours: 70-115 mg/dl




Glycosylated hemoglobin Adults: 2.2%-4.8%
Children: 1.8%-4.0%
Good diabetic control: 2.5%-6%
Fair diabetic control: 6.1%-8%
Poor diabetic control: >8%



Growth hormone <10 ng/ml
Haptoglobin 100-150 mg/dl
Hematocrit (Hct) Men: 42%-52%
Women: 37%-47% (pregnancy: >33%)
Children: 31%-43%
Infants: 30%40%
Newborns: 44%-64%



Hemoglobin (Hgb) Men: 14-18 g/dl
Women: 12-16 g/dl (pregnancy: >11 g/dl)
Children: 11-16 g/dl
Infants: 10-15 g/dl
Newborns: 14-24 g/dl



Hemoglobin electrophoresis HgbA 1 : 95%-98%
HgbA 2 : 2%-3%
Hgb F: 0.8%-2%
Hgb S: 0; Hgb C: 0


Hepatitis B surface antigen (HB 3 AG) Nonreactive
Heterophil antibody Negative
HLA-B27 None
Human chorionic gonadotropin (HCG) Negative
Human placental lactogen (HPL) Rise during pregnancy
5-Hydroxyindoleacetic acid (5-HIAA) 2.8-8.0 mg/24 hours
Immunoglobulin quantification IgG: 550-1900 mg/dl
IgA: 60-333 mg/dl
IgM: 45-145 mg/dl

Insulin 4-20 uU/ml
Iron (Fe) 60-190 ug/dl
Iron-binding capacity, total (TIBC) 250-420 ug/dl
Iron saturation (transferrin) 30%-40%
Ketone bodies Negative
Lactic acid 0.6-1.8 mEq/L
Lactic dehydrogenase (LDH) 90-200 ImU/ml
LDH isoenzymes LDH-1: 17%-27%
LDH-2: 28%-38%
LDH-3: 19%-27%
LDH-4: 5%-16%
LDH-5: 6%-16%



Lead 120 ug/dl or less
Leucine aminopeptidase (LAP) Men: 80-200 U/ml
Women: 75-185 U/ml
Leukocyte count (see complete blood count)
Lipase Up to 1.5 U/ml
Lipids
Total 400-1000 mg/dl
Cholesterol 150-250 mg/dl
Triglycerides 40-150 mg/dl
Phospholipids 150-380 mg/dl
Lithium
Long-acting thyroid stimulating hormone (LATS) Negative
Magnesium (Mg) 1.6-3.0 mEq/L
Methanol Negative
Mononucleosis spot test Negative
Nitrogen, nonprotein 15-35 mg/dl
Nuclear antibody (ANA) Negative
5'-Nucleotidase Up to 1.6 units
Osmolality 275-300 mOsm/kg
Oxygen saturation (arterial) 95%-100%
Parathormone (PTH) <2000 pg/ml
Partial thromboplastin time, activated (APTT) 30-40 sec
Pco 2 35-45 mm Hg
pH 7.35-7.45
Phenylalanine Up to 2 mg/dl
Phenylketonuria (PKU) Negative
Phenytoin (Dilantin) Therapeutic level: 10-20 µg/ml
Phosphatase (acid) 0.10-0.63 U/ml (Bessey-Lowry)
0.5-2.0 U/ml (Bodansky)
1.0-4.0 U/ml (King-Armstrong)

Phosphatase (alkaline) Adults: 30-85 ImU/ml
Children and adolescents:
<2 years: 85-235 ImU/ml
2-8 years: 65-210 ImU/ml
9-15 years: 60-300 ImU/ml (active bone growth)
16-21 years: 30-200 ImU/ml




Phospholipids (see Lipids)
Phosphorus (P, PO 4 ) Adults: 2.5-4.5 mg/dl
Children: 3.5-5.8 mg/dl
Platelet count 150,000-400,000/mm 3
PO 2 80-100 mm Hg
Potassium (K) 3.5-5.0 mEq/L
Progesterone Men, prepubertal girls, and postmenopausal women:
<2 ng/ml
Women, luteal:
peak >5 ng/ml


Prolactin 2-15 ng/ml
Protein (total) 6-8 g/dl
Albumin 3.2-4.5 g/dl
Globulin 2.3-3.4 g/dl

Prothrombin time (PT) 11.0-12.5 sec
Pyruvate 0.3-0.9 mg/dl
Red blood cell count (see Complete blood count)
Red blood cell indexes (see Complete blood count)
Renin
Reticulocyte count Adults and children: 0.5%-2% of total erythrocytes
Infants: 0.5%-3.1% of total erythrocytes
Newborns: 2.5%-6.5% of total erythrocytes

Rheumatoid factor Negative
Rubella antibody test
Salicylates Negative
Therapeutic: 20-25 mg/dl (to age 10: 25-30 mg/dl)
Toxic: >30 mg/dl (after age 60: >20 mg/dl)

Schilling test
(vitamin B 12 absorption)
8%-40% excretion/24 hours
Serologic test for syphilis (STS) Negative (nonreactive)
Serum glutamic oxaloacetic transaminase (SGOT, AST) 12-36 U/ml
5-40 IU/L
Serum glutamic-pyruvic transaminase (SGPT, ALT) 5-35 IU/L
Sickle cell Negative
Sodium (Na + ) 136-145 mEq/L
Sugar (see glucose)
Syphilis (see Serologic test for fluorescent treponemal antibody, Veneral Disease Research Laboratory)
Testosterone Men: 300-1200 ng/dl
Women: 30-95 ng/dl
Prepubertal boys and girls: 5-20 ng/dl

Thymol flocculation Up to 5 units
Thyroglobulin antibody (see Antithyroglobulin antibody)
Thyroid-stimulating hormone (TSH) 1-4 µU/ml
Neonates: <25 uIU/ml by 3 days
Thyroxine (T 4 ) Murphy-Pattee:
Neonates: 10.1-20.1 ug/dl
1-6 years: 5.6-12.6 ug/dl
6-10 years: 4.9-11.7 ug/dl
>10 years: 4-11 ug/dl
Radioimmunoassay: 5-10 µg/dl




Thyroxine-binding globulin (TBG) 12-28 ug/ml
Transaminase (see Serum glutamic-oxaloacetic transaminase, serum glutamic pyruvic transaminase)
Triglycerides 40-150 mg/dl
Triiodothyronine (T 3 ) 110-230 ng/dl
Triiodothyronine resin uptake (T 3 ) 25%-35%
Tubular phosphate reabsorption (TPR) 80%-90%
Urea nitrogen (see Blood urea nitrogen)
Uric acid Men: 2.1-8.5 mg/dl
Women: 2.0-6.6 mg/dl
Children: 2.5-5.5 mg/dl

Veneral Disease Research Laboratory (VDRL) Negative
Vitamin A 20-100 g/dl
Vitamin B 12 200-600 pg/ml
Vitamin C 0.6-1.6 mg/dl
Whole blood clot retraction (see Clot retraction)
Zinc 50-150 ug/dl

REFERENCES

1. Mosby's Medical, Nursing & Allied Health Dictionary, 4th edition, Mosby, 1994.


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