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Paramedic Drugs Week 19 > Atropine > Flashcards

Flashcards in Atropine Deck (13)
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1
Q

Atropine Sulfate

Class

A

Parasympatholytic-Parasympathetic blocker (Anticholinergic)

2
Q

Atropine Sulfate

Mechanism of Action

A

Potent parasympathetic blocker used to increase the heart rate in hemodynamically significant bradycardia (accompanied by hypotension, shortness of breath, chest pain, AMS, and/or shock). It blocks acetylcholine receptors, inhibiting parasympathetic stimulation. The effects are primarily chronotropic, and atropine has almost no inotropic effect. It acts as an antidote for organophosphate poisoning.

3
Q

Atropine Sulfate

Indication

A

Hemodynamically significant bradycardia with a pulse; organophosphate poisoning

4
Q

Atropine Sulfate

Contraindication

A

Tachycardias, PEA, asystole, cardiac arrest.

5
Q

Atropine Sulfate

Adverse Reaction

A

Blurred vision, dilated pupils, dry mouth, tachycardia,

drowsiness, urinary retention, and confusion

6
Q

Atropine Sulfate

Drug Interaction

A

Few

7
Q

Atropine Sulfate

Adult Dosage

A

0.5 mg IV repeated every 3-5 minutes until a maximum of 3 mg is reached.

8
Q

Atropine Sulfate

Pediatric Dosage

A

0.02 mg/kg minimum dose of 0.1 mg, max single dose of 0.5 mg.

9
Q

Atropine Sulfate

Onset

A

Immediate

10
Q

Atropine Sulfate

Duration

A

4 hours

11
Q

Atropine Sulfate
Special Considerations
Dosage less than 0.5mg

A

Doses less than 0.5 mg can cause paradoxical slowing of the heart rate

12
Q

Atropine Sulfate
Special Considerations
Patients w/ CAD

A

Use cautiously in patients with CAD as increased heart rate and increased myocardial oxygen demand may worsen ischemia.

13
Q

Atropine Sulfate
Special Considerations
Bradycardia

A

Atropine may worsen the bradycardia associated with high degree heart blocks. Pacing should be available.