Laboratory Testing Reference Ranges
Reference ranges are based on the normal test results of a large group of healthy people.
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Introduction
Lab results are often shown as a set of numbers known as a reference range (normal values). Reference ranges are based on the normal test results of a large group of healthy people.
Table of Contents
- Complete Blood Count (CBC) Reference Ranges
- Urine Test Reference Ranges
- Biochemistry Tests Reference Ranges
- Hormone Test Reference Ranges
- Nutrition Range Reference Ranges
Nutrition and Electrolytes
| Nutrition parameter | Normal values | Unit |
|---|---|---|
| Vitamin A | 32.5–78.0 | μg/dL |
| Vitamin B12 | 200–800 | pg/mL |
| Vitamin C | 0.4–1.5 | mg/dL |
| Vitamin D | 15–60 | pg/mL |
| Vitamin E | 5.5–17.0 | mg/L |
| Sodium | 136–145 | mEq/L |
| Potassium | 3.5–5.0 | mEq/L |
| Chloride | 98–106 | mEq/L |
| Bicarbonate | 23–28 | mEq/L |
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