Free Physician Assistant Pharmaceutical Therapeutics Questions and Answers — Questions and Answers
Question 1: A 58-year-old male with type 2 diabetes, hypertension, and a history of myocardial infarction has an A1c of 8.1% despite being on metformin. Which of the following medication classes, when added to his regimen, has been shown to reduce cardiovascular mortality in patients with established atherosclerotic cardiovascular disease?
- Dipeptidyl peptidase-4 (DPP-4) inhibitors
- Sulfonylureas
- Sodium-glucose cotransporter-2 (SGLT-2) inhibitors (Correct answer)
- Thiazolidinediones (TZDs)
Correct answer: Sodium-glucose cotransporter-2 (SGLT-2) inhibitors
For patients with type 2 diabetes and established atherosclerotic cardiovascular disease (ASCVD), SGLT-2 inhibitors (e.g., empagliflozin, canagliflozin) have demonstrated a significant benefit in reducing cardiovascular mortality and hospitalizations for heart failure. While DPP-4 inhibitors, sulfonylureas, and TZDs are effective at lowering blood glucose, they have not shown the same cardiovascular mortality benefit in this high-risk population.
Question 2: A 35-year-old patient describes a history of debilitating, unilateral, throbbing headaches occurring 2-3 times per month, accompanied by photophobia and nausea. Which of the following is the most appropriate first-line abortive medication for moderate to severe acute attacks?
- Propranolol
- Sumatriptan (Correct answer)
- Amitriptyline
- Verapamil
Correct answer: Sumatriptan
Triptans, such as sumatriptan, are serotonin 1B/1D receptor agonists and are considered first-line abortive therapy for moderate to severe migraine headaches. Propranolol and amitriptyline are used for migraine prophylaxis (prevention), not for treating an acute attack. Verapamil is more commonly used for the prophylaxis of cluster headaches.
Question 3: A 45-year-old, otherwise healthy male with no comorbidities or recent antibiotic use is diagnosed with community-acquired pneumonia (CAP) in an outpatient setting. According to the most recent IDSA/ATS guidelines, which of the following is a recommended first-line empiric monotherapy?
- Levofloxacin
- Vancomycin
- Amoxicillin (Correct answer)
- Ceftriaxone
Correct answer: Amoxicillin
For healthy outpatient adults with CAP and no significant comorbidities or risk factors for resistant pathogens, the IDSA/ATS guidelines strongly recommend high-dose amoxicillin (1g three times daily) as a first-line agent. Doxycycline is another option. Levofloxacin is a respiratory fluoroquinolone typically reserved for patients with comorbidities or recent antibiotic exposure. Vancomycin is used for suspected MRSA and ceftriaxone is a parenteral antibiotic for inpatient use.
Question 4: A 55-year-old is newly diagnosed with moderate-to-severe, active rheumatoid arthritis. Which of the following disease-modifying antirheumatic drugs (DMARDs) is most commonly recommended as initial monotherapy?
- Adalimumab
- Hydroxychloroquine
- Prednisone
- Methotrexate (Correct answer)
Correct answer: Methotrexate
Methotrexate is strongly recommended by the American College of Rheumatology (ACR) as the initial DMARD of choice for patients with moderate-to-severe rheumatoid arthritis. It serves as the anchor drug in RA therapy. Adalimumab is a biologic DMARD, typically added later if methotrexate monotherapy is insufficient. Hydroxychloroquine is generally used for milder disease. Prednisone is a corticosteroid used for bridging therapy or controlling flares but not as a long-term monotherapy DMARD.
Question 5: A 29-year-old is diagnosed with Major Depressive Disorder (MDD) of moderate severity and has no other medical conditions. Which of the following is considered a first-line pharmacologic treatment for this patient?
- Sertraline (Correct answer)
- Lithium
- Alprazolam
- Amitriptyline
Correct answer: Sertraline
Selective serotonin reuptake inhibitors (SSRIs), such as sertraline, are considered the first-line pharmacologic choice for Major Depressive Disorder due to their favorable balance of efficacy and tolerability. Amitriptyline is a tricyclic antidepressant (TCA) with a less favorable side-effect profile and is not a first-line agent. Alprazolam is a benzodiazepine used for anxiety and is not a primary treatment for MDD. Lithium is a mood stabilizer primarily used for bipolar disorder.
Question 6: A patient with frequent symptoms of gastroesophageal reflux disease (GERD) and evidence of erosive esophagitis on endoscopy has failed to respond to lifestyle changes. Which medication class is the most effective for providing symptom relief and promoting healing of the esophagus?
- H2-receptor antagonists
- Proton Pump Inhibitors (PPIs) (Correct answer)
- Antacids
- Prokinetic agents
Correct answer: Proton Pump Inhibitors (PPIs)
Proton Pump Inhibitors (PPIs) are the most effective class of medications for treating GERD, providing superior symptom relief and healing of erosive esophagitis compared to other options. They work by potently suppressing gastric acid production. While H2-receptor antagonists, antacids, and prokinetics can be used for GERD, they are less effective than PPIs, especially in the presence of erosive disease.
Free Physician Assistant Pharmaceutical Therapeutics Questions and Answers
A 58-year-old male with type 2 diabetes, hypertension, and a history of myocardial infarction has an A1c of 8.1% despite being on metformin.
Which of the following medication classes, when added to his regimen, has been shown to reduce cardiovascular mortality in patients with established atherosclerotic cardiovascular disease?