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For example, if oblique 6 MV beams are used for tangential pair, 1 cm of bolus effectively becomes 1.5 cm, i.e., "full bolus". When a full bolus is applied, bolus thickness equal to the depth of the build-up region removes the skin-sparing effect of a megavoltage x-ray beam. On the other hand, there are boluses that do not require the selection ...
Oxygen masks may cover only the nose and mouth (oral-nasal mask) or the entire face (full-face mask). oxygen tent An oxygen tent is a delivery method for supplemental oxygen. It consists of a canopy placed over the whole body or part of the body including the nose and mouth, into which an oxygen enriched gas supply is introduced, at a rate ...
Procedure mask, medical mask, isolation mask, laser mask, fluid-resistant masks, face mask [ edit on Wikidata ] A surgical mask , also known by other names such as a medical face mask or procedure mask , is a personal protective equipment used by healthcare professionals that serves as a mechanical barrier that interferes with direct airflow in ...
Just a single face mask, according to a study in Environmental Advances, can release as many as 173,000 microfibers per day into the seas. And a recent National Geographic report cites a far ...
In veterinary medicine a bolus is a large time-release tablet that stays in the rumen of cattle, goats, and sheep. It can also refer to a dose of liquid injected subcutaneously with a hypodermic needle, such as saline solution administered either to counteract dehydration or especially to mitigate kidney failure, a common ailment in domestic cats.
Researchers found that “wearing a face mask makes the exhaled air go into the eyes. This generates an uncomfortable feeling and an impulse to touch your eyes. If your hands are contaminated, you ...
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