M1-C2-L44 --> Anticholinergic Drugs
Terms
undefined, object
copy deck
- What is the prototype antimuscarinic drug?
- Atropine
- What does antimuscarinic drugs do to heart rate at low dose?
- Decrease rate b/c stimulate vagus nerve
- What does antimuscarinic drugs do to heart rate at high dose?
- Increasing tachycardia by blocking vagal effects in the SA nodal pacemaker
- Toxic dose of antimuscarinic does what to circulation?
- Dilation of cutaneous blood vessels
- T/F - Cholinergic innvervations exist in blood vessels.
- False - NO cholinergic innvervations
- Antimuscarinic poisoning can be diagnosed with what?
- AChE inhibitor
- Quartenary Ammonium compounds are absorbed with what efficiency orally?
- Poor and unreliable
- T/F - Quartenary Ammonium compounds cross blood brain barrier.
- FALSE - b/c they have charge
- Quartenary ammonium compound's potency for what receptors?
- Nicotinic
- Antimuscarinic drugs are good for preanesthetic meds b/c why? x3
-
1. Inhibits secretion/salivation
2. Increases bronchiodilation
3. Sedation - Antimuscarinic drugs are contraindicated for what condition?
- Narrow angle glaucoma
- What does cyclopentolate do for cycloplegia (paralysis of eye ciliary)
- Measures refractive index of eye