Laboratory

Precision Analytical Laboratory

9 panels

Test panels by Precision Analytical Laboratory

9 panels offered by this laboratory, A to Z

The Androgens and Metabolites section of the DUTCH test by Precision Analytical evaluates how your body produces and processes key sex hormones, particularly DHEA, testosterone, and their metabolites. It focuses on three main areas: Total DHEA production Testosterone levels Metabolic pathway preference – whether your body favors 5α (alpha) or 5β (beta) metabolism 1. Total DHEA Production DHEA (Dehydroepiandrosterone) is a precursor hormone produced by the adrenal glands and is essential for making both testosterone and estrogen. To assess total DHEA output, the DUTCH test adds up three primary urinary metabolites: DHEA-S (DHEA sulfate – the storage form of DHEA) Etiocholanolone (a 5β metabolite) Androsterone (a 5α metabolite) Looking at all three together provides a more complete picture of daily DHEA production than measuring a single marker. Example: If total DHEA output is high but DHEA-S is low, it may indicate that inflammation or other factors are blocking the sulfation process (the conversion of DHEA into its storage form, DHEA-S). This highlights why multiple DHEA markers are evaluated rather than relying on just one. 2. Testosterone Levels The DUTCH test measures testosterone directly in urine and also looks at three downstream metabolites: 5α-DHT (dihydrotestosterone – a highly potent androgen) 5α-Androstanediol 5β-Androstanediol These metabolites help determine how your body is processing testosterone and whether more of it is being converted into the powerful androgen DHT. 3. Metabolic Pathway Preference – 5α vs. 5β Metabolism Your body breaks down androgens through two main pathways: 5α pathway (alpha) → Produces androsterone and leads toward DHT formation. These metabolites are more androgenic (stronger effects). 5β pathway (beta) → Produces etiocholanolone, which is less androgenic (weaker effects). If androsterone is high and etiocholanolone is low, it suggests a 5α-dominant metabolism, meaning your body favors making DHT. This can occur even if overall androgen levels are normal or low. For example, in women with PCOS, elevated insulin can push testosterone metabolism toward the 5α pathway, increasing DHT production. Because DHT is about three times more potent than testosterone, symptoms like thinning scalp hair, facial hair growth, and acne can develop. Key Takeaways DHEA output is assessed by adding DHEA-S, androsterone, and etiocholanolone. Testosterone metabolism is tracked by measuring testosterone and its 5α and 5β metabolites. 5α dominance means your body is more likely to produce potent androgens like DHT, which can cause stronger hormonal effects and symptoms. Even low overall androgen levels can result in high DHT activity if the 5α pathway is favored.

In this section of the DUTCH test, you’ll see your creatinine values from all four urine samples collected throughout the day. Creatinine is measured for one important reason: to correct hormone results for urine dilution. Why Creatinine Matters in Urine Hormone Testing The concentration of hormones in urine can vary depending on how diluted your sample is. If you are well-hydrated, your urine is more diluted, and hormone concentrations appear lower. If you are dehydrated, your urine is more concentrated, and hormone levels may appear higher. Creatinine correction adjusts for these differences. Because creatinine is excreted at a relatively steady, predictable rate in healthy individuals, it serves as a reliable reference point to “normalize” your results, regardless of hydration. Creatinine Correction and Accuracy The DUTCH test uses creatinine correction to make its spot urine samples comparable to the gold standard: a 24-hour urine collection. A 24-hour urine test captures hormone excretion over an entire day but can be difficult for patients to complete correctly. Research shows that when a 24-hour urine collection is done properly, creatinine-corrected DUTCH values match closely with 24-hour urine hormone results. This correlation supports the accuracy and validity of creatinine correction in the DUTCH method. Important Considerations Abnormal kidney function (such as impaired creatinine clearance or low glomerular filtration rate – GFR) can affect creatinine levels and, therefore, the accuracy of correction. Any urine hormone test (DUTCH or 24-hour) should not be used to assess free cortisol in patients with significantly reduced kidney function, as results may appear artificially low. Proper hydration and following collection instructions closely help ensure more accurate results. Key Takeaways Creatinine correction accounts for urine dilution, making hormone measurements more reliable. It allows spot urine samples from the DUTCH test to be compared to 24-hour urine results. Kidney health plays a role in creatinine accuracy—results may be skewed if creatinine clearance or GFR is abnormal.

This section of the DUTCH test evaluates your body’s daily stress hormone patterns by measuring free cortisol, free cortisone, and their metabolites. It answers five key questions: What is the overall free cortisol pattern across the day? What is the total free cortisol for the day? What is your Cortisol Awakening Response (CAR)? What is the total amount of cortisol metabolites? Does your body prefer to produce active cortisol or inactive cortisone? Understanding the Cortisol Awakening Response (CAR) The Cortisol Awakening Response reflects how sharply cortisol rises in the first 30–40 minutes after waking. Normal pattern: Cortisol peaks shortly after waking, then gradually declines through the day, reaching its lowest point at night. CAR calculation: The difference between your waking cortisol sample and the one collected 30–40 minutes later. Why it matters: Low or flat CAR may suggest low HPA axis activity (underactive stress response) and can be linked to fatigue, burnout, sleep disorders, PTSD, and certain chronic illnesses. High CAR can indicate an overactive HPA axis, often associated with stress, inflammation, pain, or blood sugar instability. You can view your CAR visually in the cortisol chart in your DUTCH report. What Free Cortisol and Cortisone Show Free cortisol – the biologically active stress hormone circulating in your system (~1% of total cortisol). Free cortisone – the inactive form of cortisol. Cortisol metabolites – breakdown products representing over 70% of total cortisol output. These are often the best indicators of overall adrenal gland activity. Why Measure Metabolites and Preferences The DUTCH test not only measures totals but also determines metabolic preference: Cortisol preference → more active hormone in circulation Cortisone preference → more hormone is converted into the inactive form for excretion Common Cortisol Patterns and What They May Mean 1. Low free cortisol + low metabolites → Suggests low overall cortisol production (possible adrenal insufficiency or suppressed HPA axis). 2. Low free cortisol + high metabolites → Indicates increased cortisol clearance (seen in obesity or hyperthyroidism, including overtreatment with thyroid medication). 3. High cortisol all day → May require evaluation for Cushing’s disease or adrenal/pituitary tumors. 4. High morning cortisol + high metabolites, but normal evening levels → HPA axis is overactive early in the day, not necessarily due to tumors. Often linked to chronic stress. 5. High evening cortisol → Suggests disrupted HPA axis rhythm and may require lifestyle or therapeutic interventions to support healthy cortisol decline. 6. Low free cortisol + flat pattern + high metabolites with cortisone preference → Your body produces cortisol but quickly deactivates it into cortisone. Seen in obesity or hyperthyroidism. 7. High-normal free cortisol + high CAR + cortisol metabolite preference → May occur in inflammation, low thyroid function, or certain adrenal conditions. The body produces cortisol but struggles to deactivate it. Active vs. Inactive Metabolite Preference THF (tetrahydrocortisol) = active cortisol metabolite THE (tetrahydrocortisone) = inactive cortisone metabolite In general: If cortisol is low → better to lean toward cortisol preference If cortisol is high → better to lean toward cortisone preference to avoid excessive active hormone effects Special Note: Cortisol Cream Contamination If topical hydrocortisone cream is applied (especially at night), it can artificially elevate evening cortisol results. If cortisone levels rise along with cortisol: This is likely true physiological production. If cortisone stays low: The spike in cortisol may be due to topical cream contamination. Key Takeaways The DUTCH test evaluates both free and metabolized cortisol to give a full picture of stress hormone production and clearance. The Cortisol Awakening Response offers insights into your HPA axis health and stress resilience. Metabolic preference (cortisol vs cortisone) helps explain whether your body is activating or deactivating cortisol more aggressively. Results must be interpreted in context, especially if kidney function, topical steroid use, or other medical conditions are factors.

DUTCH (male)
Urine

The DUTCH test is a urine steroid hormone test that measures hormones and hormone metabolites from a dried urine sample.

Estrogen is a key anabolic hormone, meaning it promotes growth and development in the body. There are three primary forms of estrogen: Estrone (E1) – weaker, but still biologically active Estradiol (E2) – the most potent and biologically active form, responsible for most estrogen effects Estriol (E3) – weaker, plays a bigger role in vaginal and urinary tract health Where Is Estrogen Made? In Women: In premenopausal women, most estrogen is produced in the ovaries. Smaller amounts are created by converting testosterone into estrogen through a process called aromatization. After menopause, estrogen production shifts almost entirely to aromatization. The enzyme responsible for aromatization is found in fat tissue, the brain, gonads, blood vessels, skin, and bone. In Men: Men produce estrogen mainly through aromatization of testosterone. Men’s estrogen levels are much lower than those of cycling women—but interestingly, men often have higher estrogen levels than postmenopausal women. What Does Estrogen Do? Estrogen plays a role in multiple systems of the body: Reproductive health: Supports the growth of female secondary sex characteristics Thickens the uterine lining for implantation Increases vaginal acidity (protects against infection) Maintains vaginal lubrication (E3 is especially important here) Bone health: Maintains bone density and strength Brain function: Helps regulate body temperature Protects against memory decline Increases serotonin and serotonin receptors Skin and connective tissue: Supports collagen production Maintains skin thickness Improves blood flow to the skin Cardiovascular protection: Helps protect against atherosclerosis What Is a Metabolite? When your body makes estrogen, it eventually needs to break it down and eliminate it. This happens in the liver through phase 1 and phase 2 detoxification, producing intermediate forms called metabolites. Phase 1 Estrogen Metabolism In phase 1, estrone (E1) and estradiol (E2) are converted into three main metabolites: 2-OH-E1 – considered the “safer” metabolite; weakly stimulates cell growth and may even help inhibit it 4-OH-E1 – can damage DNA; linked to higher cancer risk 16-OH-E1 – more estrogenic; can contribute to symptoms of estrogen dominance Typical healthy distribution of phase 1 metabolites: 70% → 2-OH-E1 10% → 4-OH-E1 20% → 16-OH-E1 Unbalanced ratios—especially high 4-OH-E1—may increase health risks in both men and women. Phase 2 Estrogen Metabolism (Methylation) After phase 1, metabolites move into phase 2 detoxification, specifically methylation. Methylation neutralizes the potentially harmful phase 1 metabolites, preparing them for safe elimination instead of allowing them to recirculate in the body. Only 2-OH and 4-OH metabolites can be methylated. 16-OH-E1 is not methylated and is eliminated through other pathways. Why This Matters in the DUTCH Test By measuring estrogens and their metabolites, the DUTCH test can: Assess overall estrogen production Determine how your body is processing estrogen through phase 1 and phase 2 detoxification Identify unfavorable metabolism patterns that may contribute to symptoms or long-term health risks Guide targeted support for liver detoxification and hormone balance

The Metabolite Ratios section of the DUTCH test evaluates how your body is processing and detoxifying estrogens. These ratios compare different estrogen metabolites to help identify whether your estrogen metabolism is protective, balanced, or potentially risky. The DUTCH test reports three key ratios: 2-OH / 16-OH-E1 Balance 2-OH / 4-OH-E1 Balance 2-Methoxy / 2-OH Balance 1. 2-OH / 16-OH-E1 Balance This ratio compares two major estrogen metabolites: 2-OH-E1 → Often considered the safer pathway; weakly estrogenic and may help block cell overgrowth. 16-OH-E1 → More estrogenic; can promote tissue growth and may contribute to estrogen-dominant symptoms. Why it matters: A higher ratio (more 2-OH compared to 16-OH) is generally considered more favorable for long-term hormone balance. A lower ratio may suggest that estrogen is being metabolized in a way that could increase stimulation of estrogen-sensitive tissues. 2. 2-OH / 4-OH-E1 Balance This ratio evaluates: 2-OH-E1 → Protective, as above. 4-OH-E1 → Can be more harmful, as it may damage DNA and has been linked to a higher risk of certain hormone-related cancers. Why it matters: A higher 2-OH to 4-OH ratio is generally better, indicating your body favors the less risky pathway. A lower ratio means a greater share of estrogen is moving through the potentially DNA-damaging 4-OH pathway, which may require support for safe detoxification. 3. 2-Methoxy / 2-OH Balance This ratio reflects phase 2 estrogen metabolism (methylation): 2-OH-E1 → A phase 1 metabolite that needs to be neutralized. 2-Methoxy-E1 → The methylated (neutralized) form of 2-OH-E1, created in phase 2 detoxification. Why it matters: A higher ratio suggests efficient methylation, meaning your body is converting potentially reactive estrogen metabolites into safer, excretable forms. A low ratio may indicate sluggish methylation, which can allow reactive metabolites to remain active longer in the body. Why These Ratios Are Important By looking at these three ratios together, practitioners can see: Whether your estrogen metabolism favors protective or more risky pathways How efficiently your body neutralizes potentially harmful estrogen metabolites Whether additional nutritional or lifestyle support may help improve hormone detoxification Balanced ratios are important for both women and men, as estrogen metabolism impacts reproductive health, breast and prostate health, and overall hormonal balance.

The Neurotransmitter Metabolites section of the DUTCH test measures organic acids that are the breakdown products (metabolites) of important brain chemicals. These markers provide insight into how your body is producing and processing dopamine, norepinephrine, and serotonin-related pathways. The DUTCH test reports three main urinary metabolites: Homovanillate (HVA) – The primary metabolite of dopamine. Dopamine supports motivation, focus, mood stability, and motor control. Low HVA may suggest reduced dopamine production or turnover. High HVA may be linked to increased dopamine metabolism, stress, or certain metabolic states. Vanilmandelate (VMA) – The main metabolite of norepinephrine and epinephrine. These neurotransmitters regulate alertness, energy, blood pressure, and the body’s stress response. Low VMA may indicate low catecholamine output. High VMA can occur with chronic stress or in certain adrenal conditions. Quinolinate – A metabolite from the kynurenine pathway of tryptophan metabolism. Elevated levels are considered neurotoxic and may reflect inflammation, oxidative stress, or overactivation of immune pathways. High quinolinate can disrupt normal brain signaling and has been linked to mood disorders and neurodegeneration risk. Why DUTCH Includes Neurotransmitter Metabolites Neurotransmitter balance is closely tied to hormone health. Cortisol, estrogen, and other hormones can directly influence dopamine, norepinephrine, and serotonin metabolism. By measuring these metabolites alongside hormone patterns, the DUTCH test gives a more complete picture of how stress, hormones, and brain chemistry interact. How to Interpret These Results While urinary neurotransmitter metabolites are not a perfect reflection of brain neurotransmitter levels, research supports their use as a reliable marker of whole-body neurotransmitter activity. They help practitioners: Identify whether low or high neurotransmitter activity may be contributing to symptoms Understand whether hormone imbalances are affecting brain chemistry Guide targeted nutritional, lifestyle, and therapeutic support for both hormonal and neurological health

The Nutritional Organic Acids section of the DUTCH test measures organic acids in urine that act as functional indicators of nutrient status. When the body is low in certain vitamins, amino acids, or antioxidants at the cellular level, related organic acids can build up and be excreted in urine. In some cases, these functional markers are more reliable than measuring the nutrient directly in blood, because they reflect how well your body is actually using the nutrient—not just how much is circulating. Key Markers in This Category Methylmalonate (MMA) Marker for vitamin B12 status. High levels may indicate a cellular B12 deficiency, even if blood B12 appears normal. B12 is essential for nerve health, DNA synthesis, and red blood cell formation. Xanthurenate Linked to vitamin B6 status. Elevated levels suggest impaired B6-dependent enzyme function, often related to inflammation or poor amino acid metabolism. B6 is needed for neurotransmitter production and hormone balance. Kynurenate Also influenced by vitamin B6 status and tryptophan metabolism. Imbalances in kynurenate may reflect inflammation, immune activation, or mood-related changes. β-Hydroxyisovalerate Functional marker for biotin (vitamin B7) deficiency. Biotin supports energy metabolism, hair/skin health, and gene regulation. Pyroglutamate Associated with glutathione status. Low or high levels may indicate depletion of glutathione—the body’s “master antioxidant” important for detoxification, immune defense, and reducing oxidative stress. Indican Marker of gut microbial activity. Elevated levels can signal protein putrefaction in the gut, often due to dysbiosis or poor protein digestion. Why These Markers Matter By measuring these organic acids, the DUTCH test can: Detect hidden nutrient deficiencies before they show up on standard blood tests. Identify metabolic imbalances linked to inflammation, poor detoxification, or gut dysbiosis. Provide actionable guidance for targeted dietary, supplement, and lifestyle interventions.

Progesterone is a key reproductive hormone that plays a central role in menstrual cycle health, fertility, and hormonal balance. In women, progesterone is secreted in significant amounts only after ovulation during the luteal phase. One of its main roles is to balance the effects of estrogen—helping support a healthy uterine lining, stabilizing mood, and promoting overall well-being. Adequate luteal-phase progesterone levels are essential for successful implantation and pregnancy. Why Measure Progesterone Metabolites Instead of Progesterone Itself? Only a very small amount of parent progesterone appears in urine. Instead, the DUTCH test measures progesterone metabolites, which are breakdown products of progesterone in the body. These metabolites provide a reliable estimate of circulating progesterone. Advantages of urinary metabolites over single-time blood or saliva tests: A serum or saliva test shows progesterone at a single moment. A urinary metabolite result reflects an average production since the last urination, offering a broader view of hormone activity. The Two Main Progesterone Metabolite Pathways Progesterone is metabolized primarily through two pathways: 5α-pregnanediol – the “alpha” pathway 5β-pregnanediol – the “beta” pathway Key points: In most women, each pathway accounts for about half of progesterone metabolism. Some women show a pathway preference, favoring alpha or beta more strongly. Hormonal patterns can influence this preference: PCOS: Women often push testosterone toward the alpha pathway (making more potent DHT) and tend to also push progesterone toward 5α-pregnanediol. Hypothyroidism: Often associated with a heavier preference for the 5β-pregnanediol pathway. Both progesterone metabolites measured by the DUTCH test have been shown to correlate well with serum progesterone values, making them a reliable reflection of luteal-phase hormone production. Why This Matters Knowing your progesterone metabolite levels helps determine: Whether ovulation has occurred If luteal-phase progesterone levels are sufficient to support fertility How your body’s metabolism may be influencing hormone balance This information is especially important when evaluating menstrual irregularities, fertility concerns, perimenopause changes, or hormone therapy outcomes.