Podcast
Questions and Answers
What are the primary objectives of preanaesthetic medication?
What are the primary objectives of preanaesthetic medication?
The primary objectives include reducing anxiety, preventing vagal bradycardia, relieving pain, preventing vomiting, and hastening gastric emptying.
Why are benzodiazepines preferred for premedication in anesthesia?
Why are benzodiazepines preferred for premedication in anesthesia?
Benzodiazepines are preferred due to their anxiety-reducing effects and wide safety margin.
What role do antimuscarinic agents play in preanaesthetic medication?
What role do antimuscarinic agents play in preanaesthetic medication?
Antimuscarinic agents prevent vagal bradycardia, hypotension, and help prevent laryngospasm.
What are the indications for using conscious sedation?
What are the indications for using conscious sedation?
Signup and view all the answers
How do prokinetic drugs contribute to preanaesthetic preparations?
How do prokinetic drugs contribute to preanaesthetic preparations?
Signup and view all the answers
Study Notes
Preanaesthetic Medication
- Aims to make anesthesia more pleasant and safe
- Used to reduce anxiety and apprehension, using benzodiazepines like diazepam, lorazepam, or midazolam, which have a wide safety margin
- Acts on the limbic system to reduce anxiety
- Prevents vagal bradycardia and reduces salivary secretions with antimuscarinic agents like atropine or glycopyrrolate (glycopyrrolate preferred due to potency, minimal CNS effects, and less tachycardia)
- Relieves pre- and postoperative pain with opioid analgesics (morphine, pethidine, or fentanyl)
- Limitations of opioids include respiratory depression, hypotension, nausea, vomiting, constipation, biliary spasm, and bronchospasm in asthmatics. NSAIDs like diclofenac can also be used
- Anti-emetic effect can be achieved with Metoclopramide, domperidone, or ondansetron
- Prevents acid secretion and stress ulcers with H2-blockers (ranitidine) or proton-pump inhibitors (omeprazole)
- Hastens gastric emptying with prokinetic drugs like metoclopramide or domperidone to prevent aspiration pneumonia
Conscious Sedation
- Level of CNS depression where a patient does not lose consciousness but can communicate and cooperate during the procedure/treatment
- Indications include uncooperative and anxious patients
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz explores the key concepts related to preanaesthetic medications used to enhance the safety and comfort of anesthesia. It covers the roles of benzodiazepines, antimuscarinic agents, opioids, and other drugs in reducing anxiety, preoperative pain, and preventing complications. Test your knowledge on the pharmacological aspects and limitations of these medications.
