Common lab values – [ P ] Normal Laboratory Reference Ranges
Common Laboratory Values for Lab Tests[ Miscellaneous tables / Articles ] |
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| Drug Levels (Therapeutic) | Interpretation of lab results | Urine discoloration / Urinalysis | ||
| Arterial Blood Gas (ABG) Analysis | Anion GAP (AG) | Bacterial Pathogens - Microbiology | ||
Comprehensive Guide to Normal Lab Values  |
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Normal Lab Reference Values
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Lab (Specimen) |
Conventional Units |
SI Units |
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Parathyroid hormone (PTH), intact (serum)  |
11 - 54 pg/ml | 1.2 - 5.8 pmol/L | ||||||||||||||||||||||||||||||
| Partial thromboplastin time (PTT) (plasma) |
20 - 36 sec | 20 - 36 sec | ||||||||||||||||||||||||||||||
| Phosphorus (serum) |
2.5 - 4.5 mg/dL | 0.81 - 1.45 mmol/L | ||||||||||||||||||||||||||||||
| Platelet count (blood) |
150,000 - 450,000/µL | 150 - 450 x 109/L | ||||||||||||||||||||||||||||||
| Potassium (serum) |
3.5 - 5 mEq/L | 3.5 - 5 mmol/L | ||||||||||||||||||||||||||||||
| Prealbumin (serum) |
18 - 45 mg/dL | 180 - 450 mg/L | ||||||||||||||||||||||||||||||
| Progesterone (serum)
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Male: 0.3-1.0 ng/mL |
Female: 0-8 days: 0-8 ng/mL 9 days-12 years: 0-1.0 ng/mL Follicular: 0.2-0.8 ng/mL Luteal: 4.1-23.7 ng/mL Mid-luteal: 4.5-25.2 ng/mL Postmenopaus.: 0.1-0.6 ng/mL 1st trimester: 11.2-90.0 ng/mL 2nd trimester: 25.6-89.4 ng/mL 3rd trim: 48.4-422.5 ng/mL |
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| Prolactin (serum)
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| Prostate specific antigen (PSA) (serum) Male |
0.0 - 4 ng/mL | 0.0 - 4 µg/L | ||||||||||||||||||||||||||||||
| Protein, total (serum) |
6.0 - 8.5 g/dL | 60 - 85 g/L | ||||||||||||||||||||||||||||||
| Protein, total (urine) |
< 150 mg/day | < 150 mg/day | ||||||||||||||||||||||||||||||
| Protein C activity (plasma) |
70 - 140% of nml | 0.7 - 1.4 of nml | ||||||||||||||||||||||||||||||
| Protein C antigen (plasma) |
70 - 140% of nml | 0.7 - 1.4 of nml | ||||||||||||||||||||||||||||||
| Protein electrophoresis (serum)
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Total protein 6 - 8.5 g/dL Albumin 56.0 - 69.7% | 3.6 -4.8 g/dL Alpha-1 globulins 1.4 - 2.9% | 0.1 -0.2 g/dL Alpha-2 globulins 7.3 - 12.6% | 0.5 -0.8 g/dL Beta globulins 9.0 - 14.8% | 0.6 -1.0 g/dL Gamma globulins 8.0 - 18.2% | 0.5 -1.3 g/dL |
Total protein 60 - 85 g/L Albumin 36 -48 g/L Alpha-1 globulins 1- 2 g/L Alpha-2 globulins 5 - 8 g/L Beta globulins 6 - 10 g/L Gamma globulins 5 - 13 g/L |
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| Protein S activity (plasma) |
Male: 70 - 150% of nml Female: 58 - 130% of nml |
Male: 0.7 - 1.5 of nml Female: 0.58 - 1.3 of nml |
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| Protein S antigen (plasma) |
Male: 70 - 140% of nml Female: 70 - 140% of nml |
Male: 0.7 - 1.4 of nml Female: 0.7 - 1.4 of nml |
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| Prothrombin time (PT) (plasma)
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9 - 12.5 seconds
INR: International Normalized Ratio. The INR serves to normalize results obtained from different laboratories for the variable responsiveness of different thromboplastin reagents. Each thromboplastin is assigned an International Sensitivity Index (ISI) based on comparison to an international reference thromboplastin from the World Health Organization. The formula for calculating the INR is: |
9 - 12.5 seconds | ||||||||||||||||||||||||||||||
| Pyruvate (blood) |
0.3 - 0.9 mg/dL | 34 - 102 µmol/L | ||||||||||||||||||||||||||||||
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