Dictionary > Bolus injection

Bolus injection

Definition
noun
The injection of drug in a bolus, i.e. a large volume, at once
Supplement
A bolus injection is the administration of drug(s) in a bolus. A bolus is a single, large dose of a drug. Bolus injections become necessary when a patient needs a particular medication(s) immediately circulating in the bloodstream. For instance, a patient with high fever due to infection or microbial disease would need a high volume of antibiotic in the bloodstream in order to start working quickly. The antimicrobial action of the antibiotic is necessary so that the disease and high fever of the patient would be managed or controlled in no time. This method of drug administration is usually followed by the administration of a longer-term, slower-acting intravenous drip line of medication.
Bolus injections may be administered through these routes: intravenous, intramuscular, and intrathecal. An intravenous bolus injection is one that is administered intravenously as exemplified above. Chemotherapy is another example. An intramuscular bolus injection is the administration of a drug bolus into a muscle. An example is the administration of insulin subcutaneously. An intrathecal bolus injection is the administration of drug under the arachnoid membrane of the brain or spinal cord, such as the administration of anesthesia prior to a CS section.
See also:

  • Propofol

Related term(s):

  • bolus
  • intravenous
  • injection
  • drug
  • antibiotic
  • fever
  • pathogen
  • disease
  • medication


  • You will also like...

    3D rendering of an antibody
    Passive and Active Types of Immunity

    Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..

    Gibberellins and Gibberellic Acid
    Gibberellins and Gibberellic Acid

    This tutorial describes the role of gibberellin family in plants. Find out the effects of gibberellin on plant growth an..

    Community Patterns

    Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..

    Hormone Production
    Hormone Production

    Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..

    Electromagnetic spectrum of a brain
    Sleep and Dreams – Neurology

    While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

    Salmon jumping upstream in the river
    Lotic Communities & Animals

    A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..

    Related Articles...

    No related articles found

    See all Related Topics