Number of laboratories that participated in each test of general chemistry in 2022
| Test | Trials | |||
|---|---|---|---|---|
| 1st | 2nd | 3rd | 4th | |
| Alanine aminotransferase | 1,782 | 1,796 | 1,808 | 1,811 |
| Albumin | 1,640 | 1,654 | 1,659 | 1,666 |
| Alkaline phosphatase | 1,563 | 1,581 | 1,584 | 1,592 |
| Amylase | 872 | 883 | 886 | 890 |
| Aspartate aminotransferase | 1,781 | 1,796 | 1,808 | 1,811 |
| Blood urea nitrogen | 1,706 | 1,719 | 1,727 | 1,734 |
| Calcium | 806 | 810 | 815 | 819 |
| Chloride | 1,160 | 1,173 | 1,175 | 1,178 |
| Creatine kinase | 735 | 741 | 746 | 753 |
| Direct bilirubin | 821 | 829 | 834 | 842 |
| Gamma-glutamyl transferase | 1,728 | 1,746 | 1,756 | 1,760 |
| Glucose | 1,758 | 1,772 | 1,785 | 1,788 |
| High density lipoprotein cholesterol | 1,636 | 1,656 | 1,669 | 1,674 |
| Iron | 449 | 451 | 456 | 459 |
| Lactate dehydrogenase | 929 | 933 | 944 | 948 |
| Lipase | 482 | 490 | 496 | 499 |
| Low density lipoprotein cholesterol | 1,003 | 1,018 | 1,024 | 1,025 |
| Magnesium | 335 | 341 | 341 | 343 |
| Osmolality | 183 | 186 | 187 | 187 |
| Phosphorus | 746 | 753 | 754 | 759 |
| Potassium | 1,169 | 1,182 | 1,185 | 1,189 |
| Sodium | 1,169 | 1,182 | 1,185 | 1,189 |
| Total bilirubin | 1,644 | 1,657 | 1,669 | 1,674 |
| Total cholesterol | 1,764 | 1,778 | 1,792 | 1,795 |
| Total CO2 | 242 | 248 | 251 | 251 |
| Total iron-binding capacity | 409 | 410 | 413 | 416 |
| Total protein | 1,619 | 1,630 | 1,638 | 1,644 |
| Triglyceride | 1,723 | 1,738 | 1,750 | 1,753 |
| Uric acid | 1,327 | 1,348 | 1,353 | 1,361 |