DM1 Pt2-1 Why we Premedicate Animals Flashcards
Why is premedication important before anaesthesia?
Premedication influences the induction and maintenance phases of anaesthesia and affects cardiovascular and respiratory systems.
What are the four main reasons for premedicating animals?
- To sedate the patient before induction
- To provide balanced anaesthesia
- To provide analgesia
- To modulate drug effects during anaesthesia.
How does premedication reduce stress during induction?
Premedication sedates the patient, making restraint and intravenous catheter placement easier and reducing the required dose of induction agents.
What is balanced anaesthesia?
Balanced anaesthesia uses multiple drugs to achieve hypnosis and analgesia, reducing the doses of individual drugs and minimizing side effects.
How does premedication support balanced anaesthesia?
It reduces the dose of drugs needed for induction and maintenance, making anaesthesia depth more stable.
How does premedication provide peri-operative analgesia?
Drugs like opioids reduce the need for volatile agents during anaesthesia, and early administration ensures analgesic effects before surgery begins.
What is pre-emptive analgesia?
Administering analgesics before tissue injury to improve pain management post-operatively.
How can premedication modulate the effects of other drugs?
Atropine or glycopyrrolate can be used to prevent bradycardia associated with opioid administration during anaesthesia.
What is the risk of giving atropine or glycopyrrolate pre-emptively?
Administering these drugs pre-emptively can cause inappropriate tachycardia if bradycardia does not develop.
