Atropine Part 1

Question 1

What drug is atropine classed as?

Answer 1

Muscarinic acetycholine antagonist

Blocks acetylcholine receptors

Question 2

How many types of acetylcholine receptors does someone have and what’s the names of them ?

Answer 2

There are 2
Muscarinic and nicotinic

Question 3

Where do Muscarinic receptors function ?

Answer 3

CNS
PNS
& found in the ❤️, 🫁 & intestines. these are visceral organs (soft tissue organs)

Question 4

Why are they called Muscarinic receptors ?

Answer 4

It mimics a natural alkaloid called muscarine in the body

Question 5

What’s the natural neurotransmitter of the parasympathetic nervous system?

Answer 5

Acetylcholine

Question 6

Does acetylecholine speed up or slow down the heart?

Answer 6

Slows down the ❤️

Question 7

Since acetycholine slows the heart down how would atropine work ?

Answer 7

It blocks the effects of acetylcholine on tue SA node thus allowing the SA node to sure its expected rate of 60-100

It allows potassium to enter

Enhances the conduction between SA and AV node & doesn’t work beyond the AV node so pts with heart blocks

Question 8

What does paroxysmal mean…

3 worded answer

Answer 8

Time to Time

Question 9

What are the indications for Attopine ?

Answer 9

• Absolute bradycardia (less than 40 bpm)
• Systolic blood pressure below expected age
• Paroxysmal ventricular arrythmias requiring suppression
  ( Check photo - each arrow shows when you’d feel a radial beat )
• Inadequate perfusion causing confusion
• Bradycardia following ROSC

Question 10

Paroxysmal means ?
3 worded answer

Answer 10

Time to time (beats)