| A2 P2 | aortic second sound; pulmonary second sound |
|---|---|
| BS | Bachelor of Science; Bachelor of Surgery; Bacillus subtilis; Bartter syndrome; base strap; bedside; ... |
| bs | bedside; bowel sound; breath sound |
| A2 | Aortic Component of the Second Heart Sound(S2) |
| HBUS | Hepato-Biliary Ultra-Sound |