When candida testing is worth doing, why species identification matters for recurrent thrush, and what a positive candida PCR does not mean.
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What sex hormone binding globulin does, what raises and lowers it, and why testing SHBG alongside testosterone or estradiol prevents misdiagnosis.
How first trimester combined screening compares with NIPT, what the nuchal translucency scan adds that NIPT cannot, and how the two work together.
A practical plan for travellers who need STI testing in Thailand: what to test, when, how to handle window periods before flying home, and where to get help fast.
Why NIPT starts at 10 weeks, how gestational age affects fetal fraction, and how to plan timing around the dating scan and confirmatory options.
How syphilis testing works, why two different blood tests are needed, what an RPR titre tells you and how treated infection is distinguished from active disease.
When Group B Streptococcus screening is done in pregnancy, which swabs are taken, what a positive result changes, and why GBS is not an STI.
When a DHEA-sulphate test is genuinely useful, what a high or low result suggests, and why it belongs in a panel rather than on its own.
Why NIPT sometimes uncovers findings relating to the mother rather than the pregnancy, how often this happens, and what follow-up involves.
Why cortisol must be drawn at 8am, when saliva or 24-hour urine testing is used, and why adrenal fatigue is not a diagnosis a cortisol test can make.