| ISI | International Sensitivity Index of reagent/instrument combination |
|---|---|
| AR | absolute risk; accounts receivable; achievement ratio; actinic reticuloid [syndrome]; active resista... |
| BH | base hospital; benzalkonium and heparin; bill of health; birth history; Bishop-Harman [instruments];... |
| LSR | lanthanide shift reagent; lecithin/ sphingomyelin ratio; left superior rectus [muscle]; liver/spleen... |
| WRK | Woodward reagent K |