Number of participating laboratories for each test in the general chemistry program (2021)
| Test | Trials | |||
|---|---|---|---|---|
| 1st | 2nd | 3rd | 4th | |
| Alanine aminotransferase | 1,773 | 1,779 | 1,784 | 1,786 |
| Albumin | 1,642 | 1,642 | 1,644 | 1,649 |
| Alkaline phosphatase | 1,561 | 1,562 | 1,567 | 1,572 |
| Amylase | 854 | 854 | 861 | 868 |
| Aspartate aminotransferase | 1,772 | 1,778 | 1,783 | 1,785 |
| Bilirubin, direct | 811 | 807 | 820 | 824 |
| Bilirubin, total | 1,644 | 1,644 | 1,651 | 1,653 |
| Calcium | 784 | 793 | 793 | 794 |
| Chloride | 1,136 | 1,142 | 1,145 | 1,154 |
| Cholesterol, total | 1,758 | 1,763 | 1,767 | 1,768 |
| Creatine kinase | 715 | 715 | 719 | 723 |
| Gamma-glutamyl transpeptidase | 1,716 | 1,721 | 1,726 | 1,725 |
| Glucose | 1,752 | 1,759 | 1,763 | 1,763 |
| High-density lipoprotein cholesterol | 1,628 | 1,633 | 1,638 | 1,641 |
| Iron | 436 | 438 | 440 | 444 |
| Lactate dehydrogenase | 919 | 917 | 924 | 926 |
| Lipase | 468 | 469 | 476 | 478 |
| Low-density lipoprotein cholesterol | 982 | 986 | 1,000 | 1,001 |
| Magnesium | 323 | 324 | 330 | 331 |
| Osmolality | 176 | 176 | 179 | 181 |
| Phosphorus | 720 | 728 | 733 | 739 |
| Potassium | 1,147 | 1,154 | 1,156 | 1,166 |
| Protein, total | 1,620 | 1,622 | 1,625 | 1,629 |
| Sodium | 1,147 | 1,154 | 1,156 | 1,166 |
| Total CO2 | 235 | 240 | 242 | 243 |
| Total iron-binding capacity | 400 | 403 | 405 | 408 |
| Triglyceride | 1,710 | 1,715 | 1,721 | 1,723 |
| Urea nitrogen | 1,703 | 1,706 | 1,711 | 1,716 |
| Uric acid | 1,319 | 1,316 | 1,320 | 1,325 |