| FiCO2, | FICO2 fractional concentration of carbon dioxide in inspired gas |
|---|---|
| FIO2 | forced inspiratory oxygen; fractional concentration of oxygen in inspired gas |
| FiO2 | fractional concentration of oxygen in inspired gas |
| FOS | fiberoptic sigmoidoscopy; fractional osteoid surface |
| FPR | false-positive rate; finger peripheral resistance; fluorescence photobleaching recovery; N-formylpep... |