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PTCB Drug Test #3 3 Flashcards

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

Read the first 6 PTCB Drug Test #3 3 flashcards as text

  1. Which of the following drugs is used to reverse opioid overdose?

    Answer: Naloxone

    Naloxone (Narcan) is the opioid antagonist used for emergency reversal of opioid overdose. Flumazenil reverses benzodiazepines. Naltrexone prevents relapse. Buprenorphine is a partial agonist.

  2. A patient needs 2.5 g of a drug. The stock solution is 500 mg/mL. How many mL are required?

    Answer: 5 mL

    2.5 g = 2500 mg. Volume = 2500 mg ÷ 500 mg/mL = 5 mL.

  3. What class of drug is duloxetine (Cymbalta)?

    Answer: SNRI

    Duloxetine (Cymbalta) is an SNRI (serotonin-norepinephrine reuptake inhibitor) used for depression, anxiety, diabetic neuropathy, and fibromyalgia.

  4. Which of the following requires refrigeration for storage?

    Answer: Amoxicillin reconstituted suspension

    Amoxicillin suspension, once reconstituted, must be refrigerated (2–8°C) and discarded after 10–14 days. Tablets and capsules are generally stored at room temperature.

  5. Sildenafil (Viagra) belongs to which drug class?

    Answer: PDE-5 inhibitor

    Sildenafil is a phosphodiesterase-5 (PDE-5) inhibitor that increases cGMP, causing smooth muscle relaxation and vasodilation, used for erectile dysfunction and pulmonary arterial hypertension.

  6. Which antibiotic class should be avoided in patients with penicillin allergy due to cross-reactivity risk?

    Answer: Cephalosporins

    Cephalosporins share a beta-lactam ring structure with penicillins, creating a potential for cross-reactivity (approximately 1–2%). Patients with severe penicillin allergy require caution.