If you're wondering whether you've got low testosterone but you don't want to spend three months going back and forth with a GP who isn't sure what to order, this is the practical guide.
In New Zealand, you can pay for your own testosterone bloods privately, get the results back in a few days, and walk into a consult knowing exactly where you stand. The catch is that "testosterone bloods" done badly — wrong tests, wrong time of day, wrong second confirmation — will either miss a real problem or invent one that isn't there.
This is what to actually order, what it should cost, and how to read what comes back.
Why bother going private?
The public pathway works like this. You see your GP, describe symptoms, they order a morning total testosterone, you wait, you go back, the result is borderline, they re-test, it's still borderline, they refer to endocrinology, you wait three to nine months. That pathway is appropriate for the small subset of men who turn out to have a serious pituitary or testicular cause. For most men with adult-onset low testosterone — the "I'm 38, I'm flat, my libido has tanked, I want to know" demographic — it's slow and frustrating.
Private bloods give you:
- A complete panel in one go, not the minimum the funder will cover
- Results in 2–5 working days
- A starting point you can take to any clinician for a proper conversation
- No referral required — you self-order, you self-pay, you own the result
The downside is cost (covered below) and the genuine risk of misinterpreting a result without clinical context. Numbers without symptoms are not a diagnosis.
What to actually order
A real low-testosterone workup is more than one test. The minimum useful panel for an NZ adult man wanting to know whether to investigate further is:
| Test | Why |
|---|---|
| Total testosterone | The core measurement. Done first thing in the morning (see timing below). |
| Sex hormone binding globulin (SHBG) | Without SHBG you can't calculate free or bioavailable testosterone — the active fraction. A normal total with high SHBG can mean genuinely low free. |
| LH (luteinising hormone) | Tells you whether the problem is in the testicles (primary — high LH) or the brain (secondary — low/normal LH). Drastically changes the conversation. |
| FSH | Cheap to add alongside LH, helpful for the same primary/secondary question. |
| Prolactin | High prolactin from a benign pituitary tumour can shut down testosterone. Worth excluding once. |
| Oestradiol | Sometimes high oestradiol is the actual driver of low-T-like symptoms in heavier men. |
| Full blood count (FBC), liver function (LFTs), lipids, HbA1c, ferritin, vitamin D, TSH | Rules out the metabolic and thyroid causes that mimic low T. Catches polycythaemia if it's already present. |
A laboratory request form covering all of the above is one blood draw — the same vial(s) will run every test. You're not making the venepuncture worse by ordering more.
Where to get them in NZ
The big private labs in New Zealand are Awanui, Pathlab, and NZ Labs. Each publishes a private (non-funded) fee schedule on their website — pricing varies by region and provider. The smart move is not to shop around for the cheapest individual test, it's to order the right complete panel once so you don't have to repeat. A misordered panel that needs a re-draw is the most expensive outcome.
How to order without a GP visit
Two practical routes:
- Telehealth lab request. A NZ-registered doctor (any private telehealth clinic, including ours) can issue an electronic lab request that you take to any Awanui / Pathlab / NZ Labs collection centre. You pay for the doctor consult and for the lab's own panel fees — there are no hidden middle costs.
- Direct-to-patient programmes offered by some labs. Coverage varies and these tend to be narrower panels — useful for the basic total testosterone but inadequate for the full workup.
Do it once and do it properly — a complete first-round panel saves you from the "borderline, re-test in 3 months" loop.
Timing matters more than most people realise
Testosterone follows a daily rhythm. Levels peak around 7–9 AM and fall through the day, sometimes by 20–30%. A 2 PM draw on a low day can put a perfectly normal man into "low" range, and an 8 AM draw on a high day can put a genuinely low man into "normal."
The NZ-applicable rule (consistent with BPAC NZ guidance on hypogonadism workup):
- Draw between 7 AM and 10 AM
- Fasted is preferred (carbohydrate intake transiently drops testosterone)
- Not after a night shift or interrupted sleep
- Not within 48 hours of intense resistance training if you can avoid it
- Repeated — a single low result should be confirmed with a second morning draw on a different day before any treatment decision
Skipping this last point — confirmation — is how men end up on lifelong testosterone for a result that wouldn't have repeated.
How to read the result
A few rules of thumb. None of these replace a doctor reading them in the context of your symptoms.
Total testosterone
NZ lab reference ranges typically run 8.0–30.0 nmol/L for adult men. Where you fall matters more than the binary "in range" call:
- Above 12 nmol/L with no symptoms: very unlikely to benefit from TRT.
- 8–12 nmol/L with classic symptoms (low libido, ED, fatigue, loss of morning erections): worth a full workup and a conversation about treatment.
- Below 8 nmol/L on two morning draws with symptoms: this meets standard NZ criteria for hypogonadism and is treatable.
- Below 6 nmol/L repeatedly: investigate for an underlying cause (pituitary imaging, prolactin, iron, sleep apnoea) before assuming primary age-related decline.
Free testosterone (calculated from total + SHBG)
Often more clinically useful than total. A total of 14 nmol/L looks normal — but if SHBG is 80, the calculated free testosterone may be genuinely low. Many men with "normal total, high SHBG, real symptoms" are missed because their referral stopped at total.
LH
- Low or normal LH with low testosterone = secondary hypogonadism. The pituitary isn't signalling. Causes range from obesity and sleep apnoea to opioid use to (rarely) pituitary tumours.
- High LH with low testosterone = primary hypogonadism. The testicles aren't responding. Causes include Klinefelter's, prior trauma or infection, or undisclosed anabolic steroid use that suppressed the axis long-term.
Oestradiol
Usually not a primary problem in low-T workup but worth knowing baseline before any treatment.
Common mistakes that ruin the result
- One total testosterone, drawn at 3 PM, no SHBG. The most common pattern. The number means almost nothing.
- Drawing the day after a heavy gym session. Transient suppression — can look low when you're not.
- Drawing within weeks of stopping anabolic steroids or PEDs. Suppressed axis takes 3–18 months to recover. Numbers in that window aren't your baseline.
- Acting on a single result. Standard practice is two morning draws before any TRT decision.
- Skipping SHBG. Calculated free testosterone is often the answer; without SHBG you can't calculate it.
What to do with the result
Three scenarios:
- Results normal, symptoms still present — look at sleep, weight, alcohol, depression, and rule out thyroid and iron causes (your full panel will have flagged those).
- Results clearly low, confirmed, symptoms present — book a proper consult with a doctor who treats hypogonadism. Bring the results.
- Results borderline, symptoms present — this is where most men sit, and where a longer, doctor-led conversation is most useful. The decision is rarely "treat or don't" — it's "what else might be contributing, and what's the threshold for action."
How we do it at Enhanced Men
Every Enhanced Men TRT consult starts with a complete morning panel ordered through your local lab, paid privately. You come to the consult with the data; we read it with you, in context, in plain English. No three-month wait. No half-ordered panels. If the answer is "you don't need TRT," we'll tell you that — we're not paid more for prescribing.
References (NZ-specific)
- BPAC NZ — Hypogonadism in adult men: how to diagnose and when to treat (bpac.org.nz)
- Awanui Labs — patient-facing lab guide
- Pathlab — collection centres and test menu
- New Zealand Society of Endocrinology — adult testosterone reference ranges
This article is general health information and does not replace personalised medical advice. Symptoms of low testosterone overlap with many other conditions; the right next step is a doctor reading your results in the context of your history.