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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.
When using bolus to compensate for missing tissue, the whole of the bolussed area must be level with the point on the patient where the f.s.d. is set, to ensure dose homogeneity. When the bolus is used to reduce the skin-sparing effect, the bolus does not necessarily need to touch the skin all over the bolussed area as the scatter is of ...
Subcutaneous administration is the insertion of medications beneath the skin either by injection or infusion.. A subcutaneous injection is administered as a bolus into the subcutis, the layer of skin directly below the dermis and epidermis, collectively referred to as the cutis.
In pharmacokinetics, a loading dose is an initial higher dose of a drug that may be given at the beginning of a course of treatment before dropping down to a lower maintenance dose. [ 1 ] A loading dose is most useful for drugs that are eliminated from the body relatively slowly, i.e. have a long systemic half-life .
Bolus (medicine), the administration of a drug, medication or other substance in the form of a single, large dose; Bolus (radiation therapy), a tissue equivalent substance used in radiation therapy; Bolus tracking, technique used in computed tomography imaging, to visualise vessels more clearly
Prandial insulin, also called mealtime or bolus insulin, is designed as a bolus dose of insulin prior to a meal to regulate the spike in blood glucose that occurs following a meal. The dose of prandial insulin may be static, or may be calculated by the patient using either their current blood sugar, planned carbohydrate intake, or both.
The extended bolus is also useful for those with slow digestion (such as with gastroparesis or coeliac disease). A combination bolus/multiwave bolus is the combination of a standard bolus spike with an extended bolus square wave. This shape provides a large dose of insulin up front, and then also extends the tail of the insulin action.
bolus: as a large single dose (usually intravenously) BP, Ph.Br. Pharmacopoeia Britannica: British Pharmacopoeia BS blood sugar BSA body surface area b.t. bedtime mistaken for "b.i.d", meaning twice daily bucc. bucca: buccal (inside cheek) cap., caps. capsula: capsule cap. capiat: let him take (let the patient take) c.m. cras mane: tomorrow ...