DM1 Pt2-2 Premedication Drugs Flashcards
What is “balanced premedication”?
The use of a combination of hypnotic and analgesic drugs to reduce doses, minimize side effects, and enhance sedation and analgesia.
What is drug synergism in premedication?
Synergism occurs when the combined effect of two drugs is greater than the additive effect of each drug alone.
What are common hypnotic agents used for premedication?
Hypnotics include phenothiazines (e.g., acepromazine), alpha 2 agonists (e.g., medetomidine), benzodiazepines (e.g., midazolam), and ketamine.
What factors influence the choice of hypnotic agent?
Factors include ASA status of the patient, the procedure, the patient’s temperament, and the desired speed of recovery.
What is the primary class of analgesic agents used for premedication?
Opioids are the main class of analgesic agents used for premedication.
How does the procedure’s anticipated pain level affect opioid selection?
More invasive procedures require more potent opioids like full µ opioid agonists (e.g., methadone).
What is an advantage of combining opioids with local analgesia or adjunctive agents?
It may allow the use of less potent opioids (e.g., buprenorphine) while still providing adequate pain relief.
What are the advantages and disadvantages of IV premedication?
IV provides quick onset, but intravenous catheter placement can be difficult in fractious cats.
What are the advantages of IM premedication in cats?
IM has a slower onset than IV but is easier to administer and provides reliable drug absorption.
Why is SC premedication not recommended?
SC absorption can be unreliable, leading to unpredictable effects, and is not recommended for drugs like buprenorphine.
