What fetal fraction is, why a NIPT sample can return no result, what raises and lowers it, and why repeated failure is itself clinically meaningful.
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Why wet-mount microscopy misses most trichomonas infections, who should be tested, and why partner treatment is essential to prevent reinfection.
What a high-risk NIPT result means, why it is not a diagnosis, what confirmatory testing involves and how to think through the decisions that follow.
How often to screen for STIs based on your actual situation, what a routine screen should include, and how vaccination and PrEP fit alongside testing.
Why calculated free testosterone usually beats a direct free testosterone assay, which inputs you need, and how to order the right combination in Bangkok.
What microdeletion syndromes are, why professional bodies disagree about screening for them, and how to decide whether an expanded NIPT panel suits you.
Why TSH comes first, when to add free T4, free T3 and antibodies, and how biotin supplements can corrupt a thyroid result entirely.
The difference between carrier, diagnostic, predictive, prenatal and pharmacogenomic testing, and which one answers which question.
Why M. genitalium requires macrolide resistance testing, who should be tested, and why asymptomatic screening is not recommended.
How non-invasive prenatal paternity testing uses cell-free DNA, when it can be done, what affects reliability and what to verify before booking.