Understanding Dopamine in Critical Care

What is the primary role of dopamine in critical care settings?

• To manage diabetes

• To treat bradycardia and shock

• To treat hypertension

• To cure infections

Dopamine is a precursor to which neurotransmitter?

• Norepinephrine

• Acetylcholine

• Serotonin

• GABA

Which receptors are primarily affected by dopamine?

• Dopamine receptors

• All of the above

• Beta adrenergic receptors

• Alpha adrenergic receptors

What is a common side effect of dopamine at higher doses?

• Hyperglycemia

• Tachyarrhythmias

• Bradycardia

• Hypotension

What is the risk associated with dopamine extravasation?

• Tissue necrosis

• Increased blood pressure

• Decreased heart rate

• Improved kidney function

For treating bradycardia, what is the typical dose range of dopamine?

• 10 to 20 micrograms per kilogram per minute

• 20 to 30 micrograms per kilogram per minute

• 1 to 5 micrograms per kilogram per minute

• 5 to 10 micrograms per kilogram per minute

Which organization recommends dopamine as an alternative to pacing for bradycardia?

• World Health Organization

• National Institutes of Health

• American Heart Association

• Centers for Disease Control and Prevention

What is the primary benefit of dopamine in treating shock?

• Increased blood sugar levels

• Vasoconstriction from alpha 1 activation

• Decreased heart rate

• Improved digestion

What is the effect of beta 1 activation by dopamine in the heart?

• Decreased heart rate

• Increased chronotropy and inotropy

• Vasodilation

• Reduced cardiac output

What is the recommended starting dose for dopamine in treating shock?

• 20 micrograms per kilogram per minute

• 1 microgram per kilogram per minute

• 10 micrograms per kilogram per minute

• 5 micrograms per kilogram per minute