CIC Antimicrobial Stewardship 5 — Questions and Answers
Question 1: A stewardship program tracks 'antibiotic-associated adverse events.' Which is the most common antibiotic-related harm that stewardship programs aim to prevent?
- Anaphylaxis
- Clostridioides difficile infection (Correct answer)
- Hepatotoxicity
- Nephrotoxicity from vancomycin
Correct answer: Clostridioides difficile infection
CDI is the most common antibiotic-related harm encountered in healthcare settings, with an estimated 500,000 cases and 30,000 deaths annually in the US, making its prevention a primary stewardship goal.
Question 2: Which stewardship measure specifically addresses the issue of patients receiving antibiotics longer than necessary?
- Restricting high-risk antibiotic classes
- Implementing automatic stop orders or defined treatment durations (Correct answer)
- Requiring infectious disease consultation for all antibiotics
- Performing universal antibiotic susceptibility testing
Correct answer: Implementing automatic stop orders or defined treatment durations
Automatic stop orders or pre-defined treatment duration policies prompt prescribers to re-evaluate continued antibiotic need, preventing the common error of indefinitely extending therapy.
Question 3: What is the significance of Minimum Inhibitory Concentration (MIC) creep in antimicrobial stewardship?
- It refers to decreasing MIC values indicating improved susceptibility
- It describes gradual increases in MIC values that may predict future clinical treatment failures (Correct answer)
- It only applies to antifungal resistance monitoring
- It is a laboratory artifact with no clinical significance
Correct answer: It describes gradual increases in MIC values that may predict future clinical treatment failures
MIC creep refers to gradual upward drift in MIC values over time, which can predict treatment failures even when organisms still test 'susceptible,' highlighting the need for ongoing resistance surveillance.
Question 4: An infection preventionist is presenting stewardship data to hospital leadership. Which outcome metric would best demonstrate the clinical impact of the program?
- Number of antibiotic orders reviewed per month
- Reduction in CDI rates and antibiotic-resistant organism infections over time (Correct answer)
- Total number of antibiotic classes on formulary
- Percentage of pharmacist recommendations accepted
Correct answer: Reduction in CDI rates and antibiotic-resistant organism infections over time
Reduction in CDI rates and resistant organism infections are patient outcome metrics that directly demonstrate the clinical value of stewardship, which is more compelling to leadership than process metrics.
Question 5: Which of the following best describes the concept of 'antibiotic allergy de-labeling' in stewardship?
- Removing an antibiotic from the formulary due to resistance
- Evaluating and removing inaccurate penicillin allergy labels to expand prescribing options (Correct answer)
- Switching patients from brand-name to generic antibiotics
- De-listing antibiotics that are no longer effective
Correct answer: Evaluating and removing inaccurate penicillin allergy labels to expand prescribing options
Penicillin allergy de-labeling uses skin testing or graded challenges to identify patients with inaccurate allergy labels, restoring access to first-line beta-lactams and improving stewardship outcomes.
Question 6: In stewardship, which practice specifically targets reducing redundant anaerobic coverage?
- Avoiding metronidazole and beta-lactam/beta-lactamase inhibitor combinations simultaneously (Correct answer)
- Restricting all broad-spectrum antibiotics in the ICU
- Implementing universal fungal prophylaxis
- Requiring respiratory cultures before all antibiotic initiations
Correct answer: Avoiding metronidazole and beta-lactam/beta-lactamase inhibitor combinations simultaneously
Combining metronidazole with a beta-lactam/beta-lactamase inhibitor (e.g., piperacillin-tazobactam) provides redundant anaerobic coverage, a common stewardship target for streamlining therapy.
Question 7: Which of the following is true about the relationship between antimicrobial stewardship and infection prevention programs?
- They are independent programs with no overlap
- Stewardship and infection prevention are complementary and should be integrated for maximum impact on resistance (Correct answer)
- Infection prevention focuses only on hand hygiene, while stewardship manages all HAIs
- Stewardship programs eliminate the need for contact precautions
Correct answer: Stewardship and infection prevention are complementary and should be integrated for maximum impact on resistance
Stewardship reduces antibiotic selection pressure that drives resistance, while infection prevention controls transmission; integrating both programs is necessary for a comprehensive strategy against resistant organisms.
CIC Antimicrobial Stewardship 5
A stewardship program tracks 'antibiotic-associated adverse events.' Which is the most common antibiotic-related harm that stewardship programs aim to prevent?