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Alan Davidson, PhD
Alan Davidson, PhD
University of Toronto
Toronto, Canada
CROI
Conference on Bacteriophages
RWHAP CLINICAL CONFERENCE
Podcasts
Slides
Question of the Week
Guidelines
Contact
CME Courses
HIV In-Person and Virtual Courses
Current On-Demand Courses
About Courses
CME Webinars
Upcoming Webinars
Current On-Demand Webinars
MATE Act CME
About Webinars
Dialogues
Upcoming IAS–USA Dialogues: Emerging Infections and Health Threats
On-Demand Dialogues
About Dialogues
Topics In Antiviral Medicine
Current Issues for CME
Previous Issues
TAM
Policies and Practices
Permission Request Form
HIV Drug Resistance
HIV Drug Resistance Mutations Chart
Recent Webinars
Journal Articles
Fellow Resources
Resources for Fellows and Others New to the HIV Field
On-Demand Webinars for Fellows
IAS-USA Guidelines and Recommendations
On-Demand Webcasts
Research Collaborations
Additional Resources
About
Scientific Leadership Board
IAS-USA Leadership Award Recipients
Core Faculty
Mission
Staff
CME
Funding Information
Careers
Website Policies
Discrimination and Harassment Policy
Governance
Suggestions and Recommendations from San Francisco Locals
Donate
FAQs
Practice Question of the Week
February 16, 2026: Recommended Laboratory Testing After Nonoccupational Postexposure Prophylaxis
Your patient initiated nonoccupational postexposure prophylaxis (nPEP) after a potential sexual exposure and recently completed her 28-day course of bictegravir (BIC)/tenofovir alafenamide (TAF)/emtricitabine (FTC). She started nPEP within 24 hours of exposure and reported no missed doses, and she reported no adverse events from the regimen. She is healthy and all baseline laboratory testing results were normal. Which of the following follow-up tests can be deferred?
A. Week 4-6 alanine transaminase (ALT)/aspartate transaminase (AST) testing
B. Week 4-6 HIV testing
C. Week 12 ALT/AST testing
D. Week 12 HIV testing
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