FPGEE FPGEE Exam 5 — Questions and Answers
Question 1: Which mechanism explains the development of methicillin-resistant Staphylococcus aureus (MRSA) resistance to beta-lactam antibiotics?
- Overproduction of beta-lactamase enzymes that destroy all penicillins
- Acquisition of mecA gene encoding an altered penicillin-binding protein (PBP2a) with low affinity for beta-lactams (Correct answer)
- Efflux pump upregulation that removes beta-lactams from the bacterial cell
- Mutation of porins that prevents beta-lactam entry into the bacterial cell
Correct answer: Acquisition of mecA gene encoding an altered penicillin-binding protein (PBP2a) with low affinity for beta-lactams
MRSA carries the mecA gene (or mecC) encoding PBP2a, an altered penicillin-binding protein that has very low affinity for all beta-lactam antibiotics, conferring broad resistance.
Question 2: A patient with type 2 diabetes and a history of heart failure with reduced ejection fraction (HFrEF) is started on a new antidiabetic agent. Which class has demonstrated cardiovascular mortality benefit in this population?
- Sulfonylureas
- DPP-4 inhibitors
- SGLT2 inhibitors (Correct answer)
- Meglitinides
Correct answer: SGLT2 inhibitors
SGLT2 inhibitors (e.g., empagliflozin, dapagliflozin) have demonstrated significant reductions in cardiovascular death and HF hospitalizations in patients with HFrEF with or without diabetes.
Question 3: Which process does the Henderson-Hasselbalch equation BEST predict for drug molecules?
- The rate of renal elimination of a drug
- The ratio of ionized to un-ionized drug at a given pH (Correct answer)
- The binding affinity of a drug to plasma proteins
- The volume of distribution of a drug in body compartments
Correct answer: The ratio of ionized to un-ionized drug at a given pH
The Henderson-Hasselbalch equation (pH = pKa + log[A⁻]/[HA]) predicts the ionization state of a weak acid or base at a given pH, which determines membrane permeability and absorption.
Question 4: A pediatric patient requires vancomycin therapy. Which monitoring parameter is MOST useful to prevent vancomycin-associated nephrotoxicity per current guidelines?
- Peak serum concentration drawn 1 hour after infusion
- Trough serum concentration drawn just before next dose
- AUC/MIC ratio calculated from Bayesian pharmacokinetic modeling (Correct answer)
- Random serum concentration drawn 4 hours after infusion
Correct answer: AUC/MIC ratio calculated from Bayesian pharmacokinetic modeling
Current ASHP/IDSA/SIDP guidelines recommend AUC/MIC-guided vancomycin monitoring (target AUC 400–600 mg·h/L) over trough-only monitoring, as AUC correlates better with both efficacy and nephrotoxicity.
Question 5: A pharmacist is verifying a new compounded sterile preparation. Which reference standard governs sterile compounding practices in the United States?
- USP Chapter <797> (Correct answer)
- USP Chapter <795>
- USP Chapter <800>
- USP Chapter <1> General Notices
Correct answer: USP Chapter <797>
USP Chapter <797> provides standards for the compounding of sterile preparations, including beyond-use dating, environmental monitoring, and personnel training requirements.
Question 6: Which cardiac glycoside toxicity symptom is MOST directly caused by inhibition of the Na+/K+-ATPase pump?
- Visual disturbances such as yellow-green halos
- Nausea and vomiting via central chemoreceptor trigger zone stimulation
- Ventricular arrhythmias due to increased intracellular calcium (Correct answer)
- Bradycardia mediated by increased vagal tone
Correct answer: Ventricular arrhythmias due to increased intracellular calcium
Na+/K+-ATPase inhibition increases intracellular Na+, reducing Na+/Ca²+ exchanger activity, leading to intracellular Ca²+ overload that triggers delayed afterdepolarizations and ventricular arrhythmias.
Question 7: What is the standard number of attempts allowed on the FPGEE examination before a candidate must wait or fulfill additional requirements according to NABP policy?
- 2 attempts with no waiting period
- 5 attempts within a rolling 5-year period (Correct answer)
- 3 attempts per eligibility period, with reapplication required after 3 failures
- Unlimited attempts with a mandatory 90-day wait between each
Correct answer: 5 attempts within a rolling 5-year period
NABP policy allows candidates up to 5 attempts to pass the FPGEE within a rolling 5-year period; candidates who exhaust all attempts must reapply and meet eligibility requirements again.
FPGEE FPGEE Exam 5
Which mechanism explains the development of methicillin-resistant Staphylococcus aureus (MRSA) resistance to beta-lactam antibiotics?