All Guides
Lab Testing, Explained
Evidence-based guides across every major testing category. No jargon, no sales pitch — just the science.
Looking up a specific term? See the glossary →
STI & STD
8 min read
HIV Testing: Antibody, Antigen/Antibody, and RNA Detection Windows
Fourth-generation tests, RNA PCR, self-tests — a complete breakdown of HIV test types, accuracy windows, and what "negative" means.
STI & STD
6 min read
Chlamydia and Gonorrhea Testing: Urine vs. Swab vs. Blood
NAAT, PCR, culture — which test is right, what sample is needed, and why home test kits are now a legitimate option.
STI & STD
7 min read
STI Testing Window Periods: When to Get Tested After Exposure
Every STI has a window period. This guide covers HIV, chlamydia, gonorrhea, syphilis, herpes, and hepatitis detection timelines.