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Intravenous and Inhalation Anesthetics - Pharmacology of Intravenous Anesthetics

Intravenous and Inhalation Anesthetics - Pharmacology of Intravenous Anesthetics is a topic covered in the Clinical Anesthesia Procedures.

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Anesthesia Central

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Intravenous (IV) anesthetics are commonly used for the induction and maintenance of general anesthesia and for sedation. The rapid onset and offset of these drugs are due to their physical translocation into and out of the brain. After a bolus IV injection, lipid-soluble drugs such as propofol, thiopental (not available in the United States), and etomidate rapidly distribute into the vessel-rich group of highly perfused tissues (e.g., brain, heart, liver, and kidneys), causing an extremely rapid onset of effect. Plasma concentrations decrease as the drug is taken up by the less well-perfused tissues (e.g., muscle and fat), and the drug rapidly leaves the brain. This redistribution from the brain is responsible for the termination of effects, but the clearance of the active drug must still occur, typically by hepatic metabolism and renal elimination. Elimination half-life is defined as the time required for the plasma concentration of a drug to decrease by 50% during the elimination phase of clearance. Context-sensitive half-time (CSHT) is defined as the time required for a 50% decrease in the central compartment drug concentration after a steady-state infusion of specified duration (duration is the “context”).

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Citation

Pino, Richard M., editor. "Intravenous and Inhalation Anesthetics - Pharmacology of Intravenous Anesthetics." Clinical Anesthesia Procedures, 9th ed., Wolters Kluwer, 2019. Anesthesia Central, anesth.unboundmedicine.com/anesthesia/view/ClinicalAnesthesiaProcedures/728192/all/Intravenous_and_Inhalation_Anesthetics___Pharmacology_of_Intravenous_Anesthetics.
Intravenous and Inhalation Anesthetics - Pharmacology of Intravenous Anesthetics. In: Pino RM, ed. Clinical Anesthesia Procedures. 9th ed. Wolters Kluwer; 2019. https://anesth.unboundmedicine.com/anesthesia/view/ClinicalAnesthesiaProcedures/728192/all/Intravenous_and_Inhalation_Anesthetics___Pharmacology_of_Intravenous_Anesthetics. Accessed April 25, 2019.
Intravenous and Inhalation Anesthetics - Pharmacology of Intravenous Anesthetics. (2019). In Pino, R. M. (Ed.), Clinical Anesthesia Procedures. Available from https://anesth.unboundmedicine.com/anesthesia/view/ClinicalAnesthesiaProcedures/728192/all/Intravenous_and_Inhalation_Anesthetics___Pharmacology_of_Intravenous_Anesthetics
Intravenous and Inhalation Anesthetics - Pharmacology of Intravenous Anesthetics [Internet]. In: Pino RM, editors. Clinical Anesthesia Procedures. Wolters Kluwer; 2019. [cited 2019 April 25]. Available from: https://anesth.unboundmedicine.com/anesthesia/view/ClinicalAnesthesiaProcedures/728192/all/Intravenous_and_Inhalation_Anesthetics___Pharmacology_of_Intravenous_Anesthetics.
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TY - ELEC T1 - Intravenous and Inhalation Anesthetics - Pharmacology of Intravenous Anesthetics ID - 728192 ED - Pino,Richard M, BT - Clinical Anesthesia Procedures UR - https://anesth.unboundmedicine.com/anesthesia/view/ClinicalAnesthesiaProcedures/728192/all/Intravenous_and_Inhalation_Anesthetics___Pharmacology_of_Intravenous_Anesthetics PB - Wolters Kluwer ET - 9 DB - Anesthesia Central DP - Unbound Medicine ER -