The phrase "a background dose" is correct and usable in written English.
It can be used in contexts related to medicine, radiation, or environmental science, referring to a level of exposure that is considered normal or baseline.
Example: "The study measured the effects of a background dose of radiation on the participants over a year."
Alternatives: "baseline exposure" or "normal dose".
All patients were on a stable background dose of methotrexate.
The second component is determined by the overlapping part of tracks which in the case of very high energetic particles leads to a "photon-like" background dose and is thus characterized by a Poisson distribution.
The astronauts on the Skylab 4, who spent 87 days in low Earth orbit, received a dose of about 17,800 millirem (equivalent to a 50-year background dose on Earth).
Ofatumumab, at a dose of 700 mg administered twice, added to a background stable dose of methotrexate therapy, demonstrated a significantly greater ACR20 response at week 24 (primary endpoint) compared with placebo.
People outside the plants should receive less than 1mSv a year on top of their background dose.
Those deaths would represent only a tiny increment over the existing cancer rate, he said, just as the extra dose was a tiny fraction of the natural background dose of radiation people get from everyday exposures, but he added that they should still be considered.
Fentanyl as analgesics after surgery, a loading dose of 0.3 μ g / kg, background dose of 0.1 μ g.Kg-1.h-1, a single dose of 0.1 μg/kg, lockout time 15 min, use time of 48 h.
While these studies suggest declines in the average background dose and body burden, a precise quantification of this decline, much less a conclusion that a decline has indeed occurred, cannot be made because of the inconsistency of study design and data sources, and the treatment of non-detects in the generation of congener average concentrations.
Postoperative pain management included intravenous patient-controlled analgesia (sufentanil 1.25 μg/hour as background dose and 1.25 μg bolus with an 8-minute lockout time), parecoxib (40 mg, every 12 hours), and oral oxycodone, 20 mg, was administered every 6 hours if required.
When converted to an effective dose, this works out as 48mSvv of radiation, which is a considerable dose, especially with respect to the average yearly background dose of only 2.4 mSv.
