PARASYMPATHOMIMETIC pt.2 Flashcards
(22 cards)
What are the two main categories of Cholinergic Receptor Antagonists?
1- Anti-Muscarinic
2- Anti-Nicotinic
Name two examples of Anti-Muscarinic drugs.
- Atropine
- Hyoscine (Scopolamine)
What is one use of Atropine as a preanesthetic medication?
↓ vagal tone during operation
What condition can vagotonia lead to?
Vasovagal attack or carotid sinus syndrome
List two treatments that Atropine is used for.
- Physostigmine toxicity
- Organophosphorus toxicity
What is a potential use of Atropine in cardiac conditions?
Heart block
What is a non-preferred use of Atropine in respiratory conditions?
Bronchial asthma
Fill in the blank: Atropine can be used for _____ enuresis.
Nocturnal
What is hyperhidrosis?
Excess sweating
What is a common toxicity effect of Atropine on the cardiovascular system?
Tachycardia
What side effect of Atropine can lead to blurred vision?
Mydriasis
What gastrointestinal side effect is associated with Atropine?
Constipation
What is a central nervous system toxicity effect of Atropine?
Excitation, hallucination, convulsion
What is the specific antidote for Atropine toxicity?
Neostigmine 0.5 mg SC/3 hours
What is one advantage of using Hyoscine over Atropine?
No tachycardia
What condition does Hyoscine prevent?
Motion sickness (air sickness)
What type of neuromuscular blocker is Tubocurarine?
Competitive neuromuscular blocker
What is the drug of choice for hepatic and renal patients among neuromuscular blockers?
Atracurium
What is a non-competitive neuromuscular blocker example?
Succinylcholine
What is one clinical use of neuromuscular blockers?
During general anesthesia
What is malignant hyperthermia treated with?
Dantrolene and cooling
True or False: Atropine can cause urinary retention, especially in prostatic patients.
True
