| REFERENCE RANGE | SI REFERENCE INTERVALS |
BLOOD, PLASMA, SERUM |
Alanine aminotransferase
(ALT)
| 8-20 U/L | 8-20 U/L |
Amylase, serum | 25-125 U/L | 25-125 U/L |
Aspartate aminotransferase
(AST)
| 8-20 U/L | 8-20 U/L |
Bilirubin, serum (adult) Total // Direct | 0.1-1.0 mg/dL // 0.0-0.3 mg/dL | 2-17
µ
mol/L // 0-5
µ
mol/L
|
Calcium, serum (Total) | 8.4-10.2 mg/dL | 2.1-2.8 mmol/L |
Cholesterol, serum | < 200 mg/dL | < 5.2 mmol/L |
Cortisol, serum | 0800 h: 5-23
µ
g/dL // 1600 h: 3-15
µ
g/dL
| 138-635 nmol/L // 82-413 nmol/L |
| 2000 h:
≤
50% of 0800 h
| Fraction of
0800 h: ≤
0.50
|
Creatine kinase,
serum (at 30 °
C) ambulatory
| Male: 25-90 U/L | 25-90 U/L |
| Female: 10-70 U/L | 10-70 U/L |
Creatinine, serum | 0.6-1.2 mg/dL | 53-106
µ
mol/L
|
Electrolytes, serum |
Sodium | 135-145 mEq/L | 136-145 mmol/L |
Chloride | 95-105 mEq/L | 95-105 mmol/L |
Potassium | 3.5-5.0 mEq/L | 3.5-5.0 mmol/L |
Bicarbonate | 22-28 mEq/L | 22-28 mmol/L |
Magnesium | 1.5-2.0 mEq/L | 1.5-2.0 mmol/L |
Estriol (E3) total, serum (in pregnancy) |
24-28 wks // 32-36 wks | 30-170 ng/mL // 60-280 ng/mL | 104-590 // 208-970 nmol/L |
28-32 wks // 36-40 wks | 40-220 ng/mL // 80-350 ng/mL | 140-760 // 280-1210 nmol/L |
Ferritin, serum | Male: 15-200 ng/mL | 15-200
µ
g/L
|
Female: 12-150 ng/mL | 12-150
µ
g/L
| |
Follicle-stimulating hormone, serum/plasma | Male: 4-25 mIU/mL | 4-25 U/L |
| Female: -- premenopause 4-30 mIU/mL | 4-30 U/L |
| -- midcycle peak 10-90 mIU/mL | 10-90 U/L |
| --postmenopause 40-250 mIU/mL | 40-250 U/L |
Gases, arterial blood (room air) |
pH | 7.35-7.45 | [H
+
] 36-44 nmol/L
|
PCO
2 | 33-45 mm Hg | 4.4-5.9 kPa |
PO
2 | 75-105 mm Hg | 10.0-14.0 kPa |
Glucose, serum | Fasting: 70-110 mg/dL | 3.8-6.1 mmol / L |
| 2-h postprandial: < 120 mg/dL | < 6.6 mmol/L |
Growth hormone - arginine stimulation | Fasting: < 5 ng/mL | < 5
µ
g/L
|
| provocative stimuli: 7 ng/mL | > 7
µ
g/L
|
Immunoglobulins, serum |
IgA | 76-390 mg/dL | 0.76-3.90 g/L |
IgE | 0-380 IU/mL | 0-380 kIU/mL |
IgG | 650-1500 mg/dL | 6.5-15 g/L |
IgM | 40-345 mg/dL | 0.4-3.45 g/L |
Iron | 50-170
µ
g/dL
| 9-30
µ
mol/L
|
Lactate dehydrogenase, serum | 45-90 U/L | 45-90 U/L |
Luteinizing hormone, serum/plasma | Male: 6-23 mIU/mL | 6-23 U/L |
| Female: --follicular phase 5-30 mIU/mL | 5-30 U/L |
| --midcycle 75-150 mIU/mL | 75-150 U/L |
| --postmenopause 30-200 mIU/mL | 30-200 U/L |
Osmolality, serum | 275-295 mOsmol/kg | 275-295 mOsmol/kg |
Parathyroid hormone, serum, N-terminal | 230-630 pg/mL | 230-630 ng/L |
Phosphatase
(alkaline), serum
| 20-70 U/L | 20-70 U/L |
Phosphorus (inorganic), serum | 3.0-4.5 mg/dL | 1.0-1.5 mmol/L |
Prolactin, serum (hPRL) | < 20 ng/mL | < 20
µ
g/L
|
Proteins, serum |
Total (recumbent) | 6.0-7.8 g/dL | 60-78 g/L |
Albumin | 3.5-5.5 g/dL | 35-55 g/L |
Globulins | 2.3-3.5 g/dL | 23-35 g/L |
Thyroid-stimulating hormone, serum or plasma | 0.5-5.0
µ
U/mL
| 0.5-5.0 mU/L |
Thyroidal iodine
( 123
I) uptake
| 8-30% of administered dose/24 h | 0.08-0.30/24 h |
Thyroxine (T
4
), serum
| 5-12
µ
g/dL
| 64-155 nmol/L |
Triglycerides, serum | 35-160 mg/dL | 0.4-1.81 mmol/L |
Triiodothyronine
(T 3
), serum (RIA)
| 115-190 ng/dL | 1.8-2.9 nmol/L |
Triiodothyronine
(T 3
) resin uptake
| 25-35% | 0.25-0.35 |
Urea nitrogen, serum (BUN) | 7-18 mg/dL | 1.2-3.0 mmol urea/L |
Uric acid, serum | 3.0-8.2 mg/dL | 0.18-0.48 mmol/L |
CEREBROSPINAL FLUID |
Cell count | 0-5 cells/mm
3 | 0-5 x 10
6
/L
|
Chloride | 118-132 mEq/L | 118-132 mmol/L |
Gamma globulin | 3-12% total proteins | 0.03-0.12 |
Glucose | 40-70 mg/dL | 2.2-3.9 mmol/L |
Pressure | 70-180 mm H
2
O
| 70-180 mm H
2
O
|
Proteins, total | < 40 mg/dL | < 0.40 g/L |
HEMATOLOGIC |
Bleeding time | 2-7 minutes | 2-7 minutes |
Erythrocyte count | Male: 4.3-5.9
million/mm 3 | 4.3-5.9 x 10
12
/L
|
| Female: 3.5-5.5
million/mm 3 | 3.5-5.5 x 10
12
/L
|
Erythrocyte sedimentation rate (Westergren) | Male: 0-15 mm/h | 0-15 mm/h |
| Female: 0-20 mm/h | 0-20 mm/h |
Hematocrit | Male: 41-53% | 0.41-0.53 |
| Female: 36-46% | 0.36-0.46 |
Hemoglobin A
1C | ≤
6% | ≤
0.06% |
Hemoglobin, blood | Male: 13.5-17.5 g/dL | 2.09-2.71 mmol/L |
| Female: 12.0-16.0 g/dL | 1.86-2.48 mmol/L |
Hemoglobin, plasma | 1-4 mg/dL | 0.16-0.62
µ
mol/L
|
Leukocyte count and differential |
Leukocyte count | 4500-11,000/mm
3 | 4.5-11.0 x 10
9
/L
|
Segmented neutrophils | 54-62% | 0.54-0.62 |
Band forms | 3-5% | 0.03-0.05 |
Eosinophils | 1-3% | 0.01-0.03 |
Basophils | 0-0.75% | 0-0.0075 |
Lymphocytes | 25-33% | 0.25-0.33 |
Monocytes | 3-7% | 0.03-0.07 |
Mean corpuscular hemoglobin | 25.4-34.6 pg/cell | 0.39-0.54 fmol/cell |
Mean corpuscular hemoglobin concentration | 31-36% Hb/cell | 4.81-5.58 mmol Hb/L |
Mean corpuscular volume | .80-100
µ
m
3 | 80-100 fl |
Partial thromboplastin time (activated) | 25-40 seconds | 25-40 seconds |
Platelet count | 150,000-400,000/mm
3 | 150-400 x 10
9
/L
|
Prothrombin time | 11-15 seconds | 11-15 seconds |
Reticulocyte count | 0.5-1.5% of red cells | 0.005-0.015 |
Thrombin time | < 2 seconds deviation from control | < 2 seconds deviation from control |
Volume |
Plasma | Male: 25-43 mL/kg | 0.025-0.043 L/kg |
| Female: 28-45 mL/kg | 0.028-0.045 L/kg |
Red cell | Male: 20-36 mL/kg | 0.020-0.036 L/kg |
| Female: 19-31 mL/kg | 0.019-0.031 L/kg |
SWEAT |
Chloride | 0-35 mmol/L | 0-35 mmol/L |
URINE |
Calcium | 100-300 mg/24 h | 2.5-7.5 mmol/24 h |
Chloride | Varies with intake | Varies with intake |
Creatinine clearance | Male: 97-137 mL/min | |
| Female: 88-128 mL/min | |
Estriol, total (in pregnancy) |
30 wks | 6-18 mg/24 h | 21-62
µ
mol/24 h
|
35 wks | 9-28 mg/24 h | 31-97
µ
mol/24 h
|
40 wks | 13-42 mg/24 h | 45-146
µ
mol/24 h
|
17-Hydroxycorticosteroids | Male: 3.0-10.0 mg/24 h | 8.2-27.6
µ
mol/24 h
|
| Female: 2.0-8.0 mg/24 h | 5.5-22.0
µ
mol/24 h
|
17-Ketosteroids, total | Male: 8-20 mg/24 h | 28-70
µ
mol/24 h
|
| Female: 6-15 mg/24 h | 21-52
µ
mol/24 h
|
Osmolality | 50-1400 mOsmol/kg | |
Oxalate | 8-40
µ
g/mL
| 90-445
µ
mol/L
|
Potassium | Varies with diet | Varies with diet |
Proteins, total | < 150 mg/24 h | < 0.15 g/24 h |
Sodium | Varies with diet | Varies with diet |
Uric acid | Varies with diet | Varies with diet |
|
