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What are barbiturates derived from? |
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Definition
By progressive depression of the central nervous system |
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How do barbiturates work? What do they get absorbed in? |
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Definition
They get absorbed into the brain, which produces unconsciousness |
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When does recovery occur? |
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When the brain levels fall too low to affect the brain |
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Where is it metabolized? Excreted? |
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Definition
Metabolized by liver and excreted by kidney |
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What are the reversal agents for barbiturates? |
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Are barbiturates known for their analgesic properties? Are they controlled? |
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Definition
No, and yes...the human race has made it possible to get addicted-genius! |
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How do we administer barbiturates? |
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Definition
Powder form that needs to be reconstituted. IV, give to effect. |
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who do we need to monitor closely during the use of barbiturates? |
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Definition
Patients with respiratory depression and apnea |
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Barbiturates depress what? |
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Definition
Cardiovascular system and respiratory system |
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Why should hypoproteinemic patients receive a lower dose of a barbiturate? |
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Definition
Because they're normally partially protein-bound...so if the animal don't got lots of proteins, den dey could be kilt frum ovadoze |
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It has various interactions with other drugs, what do we do? |
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To avoid or correct going too deep, what can we do? |
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Definition
Bag regularly, or use lower dose. (oh, or just avoid it all together) |
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Is it safe for sighthounds, or lean patients? |
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Definition
Yes, it's safe, it just causes them to sleep for days |
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Why do the skinny minnies of dog world sleep forever and a day when given barbiturates? |
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Definition
Because they don't have much fat for the barbiturate molecules to redistribute to-so it'll stay in their blood and brain...deepening and prolonging anesthesia |
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If injected perivascularly, what happens? |
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Why is it bad if you accidentally give it perivascular, or under-dose a patient with barbiturates? |
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Definition
The patient gets put into excitement stage, and at that point it's hard to get them deeper. It will be harder to anesthetize, and it'll most likely take more drugs |
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Prolonged recovery can be caused by what? |
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Definition
#liverprobz #kidneyprobz #hypothermia (because the liver enzymes are not as active) |
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Soooo...who should we basically avoid when giving barbiturates? |
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What are the most commonly used barbiturates in vet med? |
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Thiopental - Pentothal (CIII) |
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Not so commonly used barbiturates? |
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Definition
Generic Trade Pentobarbital - Nembutal Thiamylal - Biotal, Surital Methohexital - Brevital |
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Which one is not commonly used but is the only one still available? |
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Definition
Generic Trade Pentobarbital-Nembutal |
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