block 3 Flashcards
A patient receives several doses of the same drug within a short period of time, after which point the medication does not relieve his symptoms. Which of the following has occured?
Tachyphylaxis
Which adrenergic receptor, when stimulated, inhibits norepinephrine release?
Alpha 2
The paramedic should administer promethazine (Phenergan) by:
diluting it in 50 mL of normal saline and administering it over 10 minutes
When the paramedic administers a medication via the IV route:
they have the ability to titrate the medication carefully in a rapidly evolving clinical situation
Stimulation of alpha 1 results in
vasoconstriction
Which of the following is an example of a Schedule II medication?
Fentanyl
Which of the following medications is used to provide cardiac cell membrane stabilization following tricyclic antidepressant overdose?
Sodium bicarbonate
In contrast to epinephrine, norepinephrine:
primarily stimulates alpha receptors
Which classification of medication is ketorolac?
Nonsteroidal anti-inlammatory
First-pass metabolism of a medication occurs when:
the bioavailability of a medication is reduced before it reaches the systemic circulation
Which of the following medications may be administered in patients with pregnancy-induced hypertension?
Hydralazine
An abnormal susceptibility to a medication that is peculiar to an individual patient is called an:
idiosyncratic reaction
Hypotension may occur following initiation of a dobutamine infusion because it:
reduces cardiac afterload