Reference Ranges

Please note that the reference ranges for laboratory tests are subject to periodic change.

The values shown on this page may be updated from time to time. The ranges printed on each report always represent the most current values and should be followed when there is any difference noted between them and the numbers shown here.

 

Androstenedione, Serum

Adult male and female: 62-270 ng/dL
Post-menopausal female: < 180 ng/dL
Prepubertal: < 60 ng/dL

B-Type Natriuretic Peptide 
(Units=pg/ml) 

Age Males Female
     
45 <= 35 <= 64
46 <= 36 <= 66
47 <= 37 <= 67
48 <= 38 <= 69
49 <= 39 <= 71
50 <= 40 <= 73
51 <= 41 <= 74
52 <= 42 <= 76
53 <= 43 <= 78
54 <= 45 <= 80
55 <= 46 <= 82
56 <= 47 <= 84
57 <= 48 <= 87
58 <= 49 <= 89
59 <= 51 <= 91
60 <= 52 <= 93
61 <= 53 <= 96
62 <= 55 <= 98
63 <= 56 <= 101
64 <= 57 <= 103
65 <= 59 <= 106
66 <= 60 <= 109
67 <= 62 <= 112
68 <= 64 <= 114
69 <= 65 <= 117
70 <= 67 <= 120
71 <= 69 <= 123
72 <= 70 <= 127
73 <= 72 <= 130
74 <= 74 <= 133
75 <= 76 <= 137
76 <= 78 <= 140
77 <= 80 <= 144
78 <= 82 <= 147
79 <= 84 <= 151
80 <= 86 <= 155
81 <= 88 <= 159
82 <= 91 <= 163
150 <= 93 <= 167

Barbiturates, Blood

Barbiturate Therapeutic Potentially Toxic
  mg/L mg/L
Amobarbital 3.0-12.0 > 12.0
Butabarbital 2.0-14.0 > 14.0
Butalbital 1.0-5.0 > 7.0
Pentobarbital 1.0-5.0 > 5.0
Phenobarbital 15.0-40.0 > 40.0
Secobarbital 1.0-5.0 > 5.0

Bromide, Serum

Therapeutic range= 750-1500 mg/L
Toxicity considered to occur at levels in excess of 1500 mg/L
Potential for toxicity over the entire therapeutic range

Catecholamines, Fractionated, Urine

Norepinephrine: 11-86 mcg/24 hrs.
Epinephrine: < 15 mcg/24 hrs.
Dopamine: 100-440 mcg/24 hrs.

Catecholamines, Fractionated, Blood
(Units=pg/ml)

  Supine, 30 min. Sitting Standing, 30 min.
Norepinephrine: 110-410 120-680 125-700
Epinephrine: < 50 < 60 < 90
Dopamine: < 87 < 87 < 87
Total: 120-450 140-730 150-750

Cardiovascular Test Reference Range
(Units=mg/dL)

  Level Clinical Interpretation
Cholesterol Total: <200 Desirable Level
  200-239 Borderline
  > 240 High Risk
Triglycerides: <200 Normal
  300-1000 High
  >1000 Very High
HDL Cholesterol: < 35 Suggests high risk for CAD
  > 55 Suggests decreased risk for CAD
LDL Cholesterol <130 Desirable

Total Cholesterol / HDL Cholesterol Ratio

Risk Chol/HDL Chol/HDL
  Male Female
1/2 Average 3.43 3.27
Average 4.97 4.44
2X Average 9.5 7.05
3X Average 23.99 11.07

Complete Blood Count (CBC)

Hemoglobin: Male: 14-17 gm/dL, Female: 12-16 gm/dL
Hematocrit: Male: 42-52%, Female: 36-47%
RBC: Male: 4.7-6.1 m/ul, Female: 4.2-5.4 m/ul
WBC: 3.4-11.2 k/ul
MCV: 81-100 fl
MCH: 27-34 pg
MCHC: 32-36%

Differential

Lymphocytes: 20-35%
Monocytes: 2-4%
Bands: 2-6%
Neutrophils: 55-75%
Basophils: 0-1%
Eosinophils: 1-3%

DHEA Sulfate

Age Male (ng/mL) Female (ng/mL)
15-29 1500-5500 1000-5000
30-39 1500-5500 600-3500
40-49 1000-4000 400-2500
50-59 600-3000 200-1500
>60 300-2000 200-1500

Estradiol-17-B
(Units=pg/mL)

Male: <20 10-200
Female: 100-400
Follicular Phase: 15-260
Ovulatory Phase: <50
Luteal Phase:  
Post-menopausal Phase  

Estradiol, unconjugated
(Units=ng/mL)

Male: <2
Female: <2
Pregnant Female:  
Weeks Gestation:  
28-32: 3.7-17.8
32-36: 4.5-28.1
36-38: 8.2-38.0
38-40: 8.6-38.8

Estrone, serum
(Units=pg/mL)

Male: 10-50
Female:  
Follicular Phase 30-100
Ovulatory Peak >150
Luteal Phase 90-160
Post-menopausal 20-40

Follicle Stimulating Hormone (FSH), serum
(Units=MIU/mL)

Male: <50 years 1-8
Female:  
Follicular Phase 4-13
Mid-cycle 5-22
Luteal Phase 2-13
Post-menopausal 20-138

Hemoglobin Electrophoresis

A 96-99%
A2 1.5-3.5%
F 0-2%

Immunoglobulins serum (adults)
(Units=mg/dL)

IgA 96-99%
IgG 1.5-3.5%
IgM 0-2%

Lactose tolerance
(Units=mg/dL)

  Rising Glucose Level
Normal > 30
Suspect Rise of 20-30
Abnormal Rise of < 20

Leutinizing hormone (LH), serum
(Units=MIU/mL)

Male: 2-12
Female:  
Follicular Phase 1-18
Mid-cycle 24-105
Luteal Phase 0.4-20
Post-menopausal 15-62

Progesterone, serum
(Units=ng/mL)

Male: < 0.04
Female:  
Follicular Phase 0.1-1.5
Luteal Phase 2.5-28
Pregnancy:  
1st trimester 9-47
2nd trimester 17-146
3rd trimester 55-255
Post-menopausal: < 0.2

Porphyrin
(Units=mcg/24 hrs.)

Urine, Quantitative  
Octacorboxporphyrin
(Uroporphin)
< 27
Heptacarboxyporphyrin < 6
Hexacarboxyporphyrin < 3
Pentacarboxyporphyrin < 5
Tetracarboxyporphyrin < 72
Feces, Quantitative  
Octacarboxyporphyrin
(Uroporphin)
< 80
Heptacarboxyporphyrin < 20
Tetracarboxyporphyrin
(Coproporphyrin)
< 640
Dicarboxyporphyrin < 1830

Myelin basic protein (CSF)
(Units=ng/mL)

0-4.0 Absence of active demyelination
4.0-8.0 Weekly positive, mild demyelination
> 8.0 Active demyelination

Protein electrophoresis

Serum gm/dL, Total protein
Albumin 3.94-4.9
Alpha 1-globulin 0-0.27
Alpha 2-globulin 0.41-0.77
Beta-globulin 0.55-0.97
Gamma globulin 0.41-1.61
   
CSF  
Total protein 15-45 mg/dL
  % of total
Prealbumin 2-7
Albumin 56-76
Alpha 1-globulin 2-7
Alpha 2-globulin 4-12
Beta-globulin 8-18
Gamma globulin 3-12

Dibucaine Inhibition

70-90%  
18-20% Congenital deficiency

Pseudocholinesterase, Total
(Units=U/mL)

Male:  
< 18 years Not established
> 18 years 11-25
Female:  
< 18 years Not established
18-29 years 7-20
30-39 years 8-21
40-49 9-22
50-59 years 11-24
> 60 years 11-25

Renin, plasma

Upright* Low Na Diet Mod. Na Diet High Na Diet
  < 80 mmol
1.0 ng/mL/hr
80-160 mmol
0.3-3.2 ng/mL/hr
> 160 mmol
 < 2.2 ng/mL/hr
*Values for supine patients are approximately 50% lower

Semen analysis

Volume 1.5-5.0 mL
Motility 3 hrs > 60%
Normal forms > 70%
Sperm count 60-150 million/mL
pH 7.2-8.9
Appearance Translucent, turbid, viscous fluid

Somatomedin C
(Units=ng/mL)

Age Male Female
1-2 years 22-87 22-93
3-5 years 20-126 28-150
6-9 years 45-167 53-212
10-12 years 158-282 161-580
13-15 years 152-494 298-568
16-18 years 211-454 204-473
> 18 years 90-318 116-270

Synovial fluid analysis

White Blood Cell Count 200-600 cells/ul
Crystal analysis absent
Culture Negative
Uric Acid 2.5-8.5 mg/dL

Urinalysis

Appearance Clear-hazy
Specific gravity 1.002-1.030
pH 4.5-8.0
Ketones 0 mg/dL
Protein 0 mg/dL
Glucose 0 mg/dL
Bilirubin Negative
Blood Negative
WBC 0-5/HPF
RBC 0-3/HPF
Casts 0-2/HPF
Crystals Variable
Epithelial cells Variable

Xylose absorption

Adults:  
25 gram D-xylose dose  
5-hour urine 4.8-8.2 g
(mean 6.5)
1-hour blood 29-72 mg/dL
(mean 45.0)
2-hour blood 15-76 mg/dL
(mean 45.0)
5 gram D-xylose dose  
5-hour urine 1.2-2.4 g
(mean 1.8)
1-hour blood 8-12 mg/dL
(mean 15.7)
Children:  
5-hour urine 9-27%/5 hr.
(mean 18%)
1-hour blood 15.8-39.8 mg/dL
(mean 27.7)
In children, D-xylose excretion in a 5-hr urine is expressed as a percentage of the total dose because dosage varies with body weight.
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