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Pharmacology Flashcards

6 cards from real PCP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Pharmacology flashcards as text

  1. What is the primary mechanism of action of nitroglycerin?

    Answer: Venous and arterial dilation reducing cardiac workload

    Nitroglycerin causes venous and arterial smooth muscle relaxation, reducing preload and afterload to decrease cardiac workload.

  2. The adult dose of oral aspirin for a suspected acute MI is:

    Answer: 162–325 mg chewed

    162–325 mg of aspirin, chewed (not swallowed whole), is given for suspected acute MI to inhibit platelet aggregation rapidly.

  3. Which medication is a first-line treatment for anaphylaxis?

    Answer: Epinephrine 1:1000 IM

    Epinephrine 1:1000 administered IM into the lateral thigh is the first-line treatment for anaphylaxis.

  4. What is the adult dose of epinephrine 1:1000 for anaphylaxis?

    Answer: 0.3–0.5 mg IM

    The adult dose for anaphylaxis is 0.3–0.5 mg of epinephrine 1:1000 injected IM into the anterolateral thigh.

  5. Activated charcoal is contraindicated in which of the following situations?

    Answer: Caustic/corrosive substance ingestion

    Activated charcoal is contraindicated with caustic ingestions because it does not bind caustics and obscures endoscopy.

  6. Which medication reverses opioid-induced respiratory depression?

    Answer: Naloxone (Narcan)

    Naloxone is a competitive opioid antagonist that reverses respiratory depression, sedation, and analgesia caused by opioids.