Injectable Anaesthetics: Barbiturates and Pentobarbitone Flashcards Preview

Veterinary Nursing Anaesthesia and Analgesia > Injectable Anaesthetics: Barbiturates and Pentobarbitone > Flashcards

Flashcards in Injectable Anaesthetics: Barbiturates and Pentobarbitone Deck (9)
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1

What do barbiturates cause?

- Adequate muscle relaxation
- Unconsciousness

2

Do barbiturates provide good analgesic properties

NO

3

Why do barbituates have a rapid onset of anaesthesia

Highly lipid soluble and so enter the brain tissue rapidly (15-30seconds)

4

Where do barbituates redistribute?

blood levels fall as it goes into plasma and then redistributed into muscle/fat

5

Name 3 patients that baributates are not suitable for?

- Renal / hepatic patients
- Patients with cardiovascular disease
- Shocked patients
- Thin patients

6

Why are barbiturates not suitable for thin patients

increased potency due to lack of body fat to redistribute drug

7

Why are barbiturates not suitable for shocked patients?

Reduced blood flow to fat and increased cardiac and cerebral blood flow

8

Name a barbiturate anaesthetic drug

- thiopentone
- methohexitone
- pentobarbitone

9

What two functions do pentobarbitone have?

- Anticonvulsant
- Humane destruction