Functional testing
When stress physiology needs measuring, not guessing
Hormone and stress testing maps your child's cortisol rhythm across a day, and for adolescents, reproductive hormone patterns where they are relevant. It suits teens and older children whose anxiety, sleep disruption or fatigue carries a strong physical signature that a thorough history alone has not explained. It is also the most over-sold test category online, so we hold it to the same rule as every pathway here: measure only when the numbers would change the plan.
What it measures
Rhythms, not single readings
Stress physiology is a rhythm. Cortisol is meant to rise sharply in the morning and taper through the evening, so a useful test samples saliva or urine at several points across the day and draws the curve: is the morning rise flat, is the evening level still high when sleep should be arriving, does the shape fit the symptoms? For adolescents, testing can extend to reproductive hormone patterns where the history makes them relevant, for example cycle-linked mood or energy changes in teens. In every case the unit of meaning is the pattern, never a single number.
What it can and can't tell you
A cortisol curve can show whether the day-to-day physiology matches what your teen describes: the 11pm second wind, the mornings that feel like wading through wet sand. That can be genuinely clarifying, for them as much as for you. What it can'tdo is diagnose. A flattened curve is a description, not a disease, and “adrenal fatigue” is not a recognised medical diagnosis, so you will not hear it from us. Hormone levels also move with sleep, illness, sport and ordinary adolescence, which is why we interpret results within recognised physiology, beside your child's history, and refer back to your GP or paediatrician whenever a result deserves medical eyes.
When we recommend it
Sparingly, and almost always after the basics. Most stress-related presentations are understood well enough through history, sleep patterns and the simpler pathways. We consider hormone testing when an adolescent's sleep-wake rhythm is persistently inverted, when anxiety or emotional dysregulationcarries marked physical features that have not yielded to good groundwork, or when a teen's cycle-linked pattern needs mapping before decisions are made. If the numbers wouldn't change anything, we don't order them.
How it works at ReMed
The consultation comes first, every time. If testing is indicated, the exact cost is quoted before ordering (panels vary by lab and are not Medicare-rebated), and the kit is posted to your home anywhere in Australia with timing instructions that matter and are easy to follow. Samples go directly to the laboratory, and the report comes back to a results consultation, online or in clinic, where the curve is explained in plain language and folded into your child's wider plan. Consultation fees are on the fees page.
Is your teen's body keeping different hours?
Start with the story. If measuring the physiology would genuinely help, we'll recommend it; if it wouldn't, we'll tell you that too.
Hormone and stress testing: questions parents ask
Mostly saliva or urine, collected at home at set points across the day (for stress physiology) or across a cycle (for some adolescent patterns). The kit is posted to you with clear timing instructions, and no needles are involved for these collections.
Mostly adolescents and older children. In younger children we are slower to test hormones at all: their stress physiology is best understood through history, sleep and behaviour patterns first, and we only measure when the consultation shows the numbers would change a decision.
No, because adrenal fatigue is not a recognised medical diagnosis, and we won't pretend otherwise. What cortisol-rhythm testing can legitimately describe is the pattern of your child's stress physiology across the day, which we interpret within recognised physiology and alongside their history.
Functional saliva and urine hormone panels are not Medicare-rebated; they are privately billed and quoted before anything is ordered. Where a standard blood hormone test through your GP is the better tool, we will say exactly that.
Yes. Kits are posted anywhere in Australia, collection happens at home, and the results consultation runs online, with the findings explained in plain language against your child's story.
Where this pathway leads