Levothyroxine is classified as which type of medication?
A. Synthetic thyroid hormone replacement
B. Loop diuretic
C. Sulfonylurea antidiabetic
D. Proton pump inhibitor
Source: PTCB PTCE Content Outline (Knowledge Area 1.0: Medications)
Which of the following is the generic name for the brand-name drug Xanax?
A. Lorazepam
B. Alprazolam
C. Diazepam
D. Clonazepam
Source: PTCB PTCE Content Outline (Knowledge Area 1.0: Medications)
A patient stable on warfarin begins taking a new antibiotic, and the pharmacist flags the combination for an increased bleeding risk requiring closer INR monitoring. Which class of antibiotics is most classically associated with significantly potentiating warfarin's effect?
A. Topical antifungals applied to the skin
B. Inhaled bronchodilators
C. Fluoroquinolones and macrolides (e.g., ciprofloxacin, clarithromycin)
D. Topical ophthalmic antibiotic drops
Source: PTCB PTCE Content Outline (Knowledge Area 1.0: Medications)
A common side effect of first-generation antihistamines like diphenhydramine, which is why they are used cautiously in elderly patients, is:
A. Hyperactivity and insomnia in nearly all patients
B. Significant weight loss
C. Hair growth stimulation
D. Sedation and anticholinergic effects (e.g., dry mouth, confusion, urinary retention)
Source: PTCB PTCE Content Outline (Knowledge Area 1.0: Medications)
Once opened, an in-use insulin pen not requiring refrigeration by its labeling is generally stable at room temperature for approximately how long before it should be discarded?
A. About 28 days, though the exact duration varies by specific product labeling
B. Indefinitely, with no discard date
C. Only 24 hours
D. Up to 2 years
Source: PTCB PTCE Content Outline (Knowledge Area 1.0: Medications)
