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CPE-006 · synthetic case TESTO-FX-16
Anabolic steroid use
Testosterone 30 and LH below 0.2.
Purpose: Testosterone 30 and LH below 0.2.
Inputs the engine received
Testosterone and hormones
- Total testosterone, sample 1
- 30 ng/dL
- LH
- 0.2 IU/L
Symptoms and findings
- Age
- 29 years
- Low libido
- Yes
Possible reversible contributors
- Anabolic-androgenic steroid use
- Yes
What the engine reports
Detected clinical pattern
Exogenous Androgen Effect
Measured testosterone and gonadotropins reflect the exogenous exposure, so baseline hypogonadism is not classified. Monitoring prompts apply.
Differentials, pitfalls and contradicting signals
- Exogenous androgens suppress LH and FSH and change testosterone; baseline status cannot be read from these values.
Evidence and rule trace · 1 rules
HG-EXO-01Exogenous androgen or testosterone therapy
Inputs: anabolic-androgenic steroid use
Baseline hypogonadism cannot be classified while exogenous androgens are being taken.
Evidence
- EV-ES-TRT-2018 · Bhasin S, Brito JP, Cunningham GR, et al. Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2018;103(5):1715-1744.
Physician adjudication required. Clinical decision support for physician review. This output identifies laboratory patterns and cautions. It does not diagnose, find the cause, or recommend starting, stopping or dosing testosterone therapy. Physician adjudication is required.
Change the values
The same engine, starting from this case. Change any value and watch the pattern and the rule trace react.
Against typical adult male reference intervals
Testosterone and hormones
- <264
- 264–299
- 300–350 borderline
- >350
4.3 g/dL is assumed when left empty.
Symptoms and findings
Possible reversible contributors
Testosterone therapy context
More testosterone cases
TESTO-FX-01
Low libido and erectile dysfunction, testosterone never measured
A 48-year-old with sexual symptoms and fatigue.
TESTO-FX-02
One low testosterone
Total testosterone 218 ng/dL on a single morning sample.
TESTO-FX-03
Low on two samples with a primary pattern
Testosterone 205 and 190 with LH 22 and FSH 31.
TESTO-FX-04
Secondary pattern with obesity and diabetes
LH 1.2 and FSH 2.0 with BMI 36.
TESTO-FX-05
Raised prolactin with low testosterone
Prolactin 95 ng/mL.
TESTO-FX-06
Headache, visual field loss and prolactin 310
Possible pituitary mass effect.
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