| PNB | p-nitrobiphenyl; perineal needle biopsy; peripheral nerve block; premature nodal beat |
|---|---|
| PNLA | percutaneous needle lung aspiration |
| PTBNA | protected transbronchial needle aspirate |
| PTFNA | percutaneous transthoracic fine-needle aspiration |
| TBAN | transbronchial aspiration needle |