It might be an abbreviation of Fitness for Duty, or Fit for Duty, or Focus Film Distance, or Fast Flash Disk, or something else.
"Fit for Duty" - In the Navy it could mean "Forward Front Deck" but the acronym FFD is rarely used in that application.
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FFD, or Focus-Film Distance, refers to the distance between the x-ray tube and the film or detector in radiology. This measurement is crucial for determining image quality, as it influences the sharpness and resolution of the radiographic image. A proper FFD helps ensure optimal exposure and minimizes distortion, ultimately aiding in accurate diagnoses. Adjusting FFD can also impact radiation dose to the patient, making it an important consideration in radiographic technique.
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An FFD ensures any gas escape is kept to a minimum if a flame goes out accidentally
From experience I can say that I did not enjoy taking this drug. I was prescribed Symbicort, which contains FFD. From the outset I experienced bad dreams coupled with disrupted sleep and much increased nighttime urinary activity. A rash also appeared on my shin and contra-indications suggest this may have been a result of the FFD. I also had a sore throat (which was expected) and a constant headache for the 4 days I persevered with it.
The airport code for RAF Brize Norton is BZZ.
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