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Glossary of Drugs - Anesthetics

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What do anesthetics do?
cause an absence of sensation or pain
What are the 2 classifications of anesthetics?
local and general
How do local anesthetics work?
they block pain conduction to the CNS, but do not affect the CNS, so the patient remains conscious
What are the 3 groups of local anesthetics?
esters, amides, and others
Which local anesthetic would be longer acting, esters or amides?
amides
How are esters metabolized?
by enzymes found in the blood or skin
Where are amides metabolized?
in the liver
What could an overdose of anesthesia cause?
medullary paralysis-paralyzes the respiratory and heart centers of the medulla, leading to death
How many stages are there to general anesthesia?
4
What is Stage I of general anesthesia?
Analgesia - euphoria with loss of pain and consciousness
What is Stage II of general anesthesia?
Excitement - increase in sympathetic nervous system effects such as blood pressure, heart and respiratory rate
What is Stage III of general anesthesia?
Surgical Anesthesia - surgery can safely be conducted
What is Stage IV of general anesthesia?
Medullary Paralysis
What was the first general anesthetic?
nitrous oxide
Is ether an inhalation anesthetic or an intravenous anesthetic?
inhalation
Is Midazolam an inhalation anesthetic or an intravenous anesthetic?
intravenous
Is Diazepam an inhalation anesthetic or an intravenous anesthetic?
intravenous
Is Halothane an inhalation anesthetic or an intravenous anesthetic?
inhalation
Is Fentanyl an inhalation anesthetic or an intravenous anesthetic?
intravenous
Is Alfentanil an inhalation anesthetic or an intravenous anesthetic?
intravenous
Is Desflurane an inhalation anesthetic or an intravenous anesthetic?
inhalation
What type of drug is Procaine?
an injection local anesthetic
What type of drug is Tetracaine?
an injection local anesthetic
What type of drug is Bupivacaine?
an injection local anesthetic
What type of drug is Dibucaine?
an injection local anesthetic
What type of drug is Halothane?
an inhalation general anesthetic
What type of drug is Midazolam?
an injectable general anesthetic
What type of drug is Fentanyl Citrate/Droperidol?
an injectable general anesthetic
What type of drug contains the stem -flurane in the word?
inhalation anesthetics

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