| FRFC | functional renal failure of cirrhosis |
|---|---|
| FRP | follicle-stimulating hormone releasing protein; functional refractory period |
| FRV | full-length retroviral [sequence]; functional residual volume |
| FSI | foam stability index; Food Sanitation Institute; functional status index; function status index |
| FSN | functional stimulation, neuromuscular |
| RFR | Renal functional reserve |
|---|---|
| SFI | Sciatic Functional Index |
| FRP | functional refractory period |