| Pb | Symbol for lead (plumbum). (05 Mar 2000) |
|---|---|
| PBG | <abbreviation> Porphobilinogen. (05 Mar 2000) |
| PBI | <abbreviation> Protein-bound iodine. (05 Mar 2000) |
| PBI test | A formerly used test of thyroid function in which serum protein-bound iodine is measured to provide an estimate of hormone bound to protein in peripheral blood. Synonym: PBI test. (05 Mar 2000) |