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General anaesthetics

General anaesthetics (GAs) are drugs which produce reversible loss of all sensation and consciousness. The cardinal features of general anaesthesia are: Loss of all sensation, especially pain, Sleep (...

Published: Oct 20 2023

Ether is a potent anaesthetic, produces good analgesia and marked muscle relaxation by reducing ACh output from motor nerve endings. The dose of competitive neuromuscular blockers should be reduced to...

Published: Oct 20 2023

Halothane a volatile liquid with sweet odour, nonirritant and noninflammable. Solubility in blood is moderate induction is reasonably quick and pleasant. Halothane, sold under the brand name Fluothane...

Published: Oct 20 2023

The sympathetic nervous system

The autonomic nervous system (ANS) mediates actions that occur without voluntary control such as heart rate or blood pressure. It consists of both the sympathetic nervous system (SNS) and parasympathe...

Published: Oct 20 2023

Desflurane is a newer all fluorinated congener of isoflurane which has gained popularity as an anaesthetic for out patient surgery. Though it is highly volatile, a thermostatically heated special vapo...

Published: Oct 18 2023

Propofol is an intravenous anesthetic used for procedural sedation, during monitored anesthesia care, or as an induction agent for general anesthesia. Currently, propofol has superseded thiopentone as...

Published: Oct 18 2023

Skeletal muscle relaxants

Skeletal muscle relaxants are drugs that act peripherally at neuromuscular junction/muscle fibre itself or centrally in the cerebrospinal axis to cause paralysis or reduce muscle tone. The neuromuscul...

Published: Oct 18 2023

The cerebrum is the largest part of the brain, located superiorly and anteriorly in relation to the brainstem. Its large size is the result of a progressive centralization (telencephalization) of the ...

Published: Oct 18 2023

Blood transfusions reaction

Blood transfusions are one of the most common procedures for patients in the hospital. Transfusion reactions are the most frequent adverse event associated with administration of blood products. Any ...

Published: Oct 18 2023

The parasympathetic nervous systems

The parasympathetic nervous system (PNS) is one of the two functionally distinct and continuously active divisions of the autonomic nervous system (ANS). It is in opposition to the other, the sympathe...

Published: Oct 17 2023

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