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12 Cards in this Set
- Front
- Back
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What is the prototype antimuscarinic drug?
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Atropine
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What does antimuscarinic drugs do to heart rate at low dose?
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Decrease rate b/c stimulate vagus nerve
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What does antimuscarinic drugs do to heart rate at high dose?
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Increasing tachycardia by blocking vagal effects in the SA nodal pacemaker
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Toxic dose of antimuscarinic does what to circulation?
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Dilation of cutaneous blood vessels
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T/F - Cholinergic innvervations exist in blood vessels.
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False - NO cholinergic innvervations
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Antimuscarinic poisoning can be diagnosed with what?
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AChE inhibitor
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Quartenary Ammonium compounds are absorbed with what efficiency orally?
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Poor and unreliable
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T/F - Quartenary Ammonium compounds cross blood brain barrier.
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FALSE - b/c they have charge
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Quartenary ammonium compound's potency for what receptors?
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Nicotinic
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Antimuscarinic drugs are good for preanesthetic meds b/c why? x3
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1. Inhibits secretion/salivation
2. Increases bronchiodilation 3. Sedation |
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Antimuscarinic drugs are contraindicated for what condition?
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Narrow angle glaucoma
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What does cyclopentolate do for cycloplegia (paralysis of eye ciliary)
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Measures refractive index of eye
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