Erectile Dysfunction Test Panel
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This comprehensive ED panel is exclusively available through Quest Diagnostics and includes specialized biomarkers not offered in LabCorp's standard testing menu.
What this test measures
This comprehensive panel evaluates key hormonal, metabolic, and cardiovascular biomarkers that may contribute to erectile dysfunction, including testosterone levels, thyroid function, cholesterol profile, and diabetes markers. The test examines morning total testosterone (with free testosterone and SHBG when indicated), pituitary hormones (LH/FSH), prolactin, thyroid function (TSH and free T4), diabetes markers (fasting glucose and HbA1c), lipids, and general health indicators. Understanding these biological factors is important because erectile dysfunction is frequently underpinned by reversible or treatable conditions such as hormonal imbalances, metabolic dysfunction, and early cardiovascular changes that may not always be visible through symptoms alone.
What's included
Who should consider this test
You might consider this test if you are experiencing any of the following:
- Men experiencing persistent difficulty achieving or maintaining erections firm enough for satisfying sexual activity
- Those with decreased libido, reduced energy levels, or changes in mood that may indicate hormonal imbalances
- Men concerned about underlying health conditions like diabetes, heart disease, or thyroid disorders that can affect sexual function
- Those who want to understand whether their erectile difficulties have a medical cause rather than psychological factors alone
- Men seeking a comprehensive health assessment before considering erectile dysfunction treatments
- Those who prefer private, confidential testing without discussing sensitive sexual health issues with their primary care provider
What to expect
Preparation
Fast for 8-12 hours before your test and schedule your appointment for the morning, ideally before 10 AM, as hormone levels like testosterone follow a daily rhythm and are most reliably measured in the morning. Avoid strenuous exercise and heavy alcohol intake in the 24 hours before testing.
Sample Type
A standard blood draw from a vein in your arm, typically taking just a few minutes to collect the necessary sample for all biomarkers in the panel.
Collection
Visit any Quest Diagnostics location with your test order. Present a valid ID, have your blood drawn by a trained phlebotomist, and you're done - no appointment needed at most locations.
Turnaround
Results are typically available within 1-3 business days and will be delivered securely through your patient portal.
Understanding your results
This comprehensive panel provides essential clinical information about hormonal, metabolic, and vascular factors that may contribute to erectile function, though the test itself is not diagnostic of ED - it identifies potential underlying causes that can guide further evaluation or treatment. Your results will include multiple biomarkers with their respective values and reference ranges. It's important to note that reference ranges can vary between laboratories based on their testing methods and the population they serve, so your lab report will include the specific reference ranges used by the laboratory that processed your sample.
| Population | Reference Range | Notes |
|---|---|---|
| Adult men (total testosterone) | 264-916 ng/dL | Morning levels recommended; varies by age and lab methodology |
| Adult men (free testosterone) | 66-309 pg/mL | Calculated or measured; reflects bioavailable testosterone |
| Adult men (TSH) | 0.4-4.5 mIU/L | Thyroid stimulating hormone; varies slightly by lab |
| Adults (HbA1c) | <5.7% | Normal; 5.7-6.4% indicates prediabetes |
| Adults (total cholesterol) | <200 mg/dL | Desirable level for cardiovascular health |
Reference ranges shown are general guidelines. Your lab report will include the specific reference range used by the laboratory that processed your sample, which is the authoritative range for interpreting your results.
What does a “Low” result mean?
Low testosterone levels can result in reduced sex drive, weaker erections, and lower energy levels, as testosterone plays a major role in libido, erectile function, and overall sexual performance. Low thyroid hormone levels (hypothyroidism) can contribute to erectile dysfunction, low libido, and depression. Low levels of other biomarkers may also indicate underlying health conditions affecting sexual function.
What does a “High” result mean?
Elevated results may indicate various conditions: high cholesterol can lead to restricted blood flow making erections difficult, high blood sugar may signal diabetes or insulin resistance that can damage nerves and blood vessels, and elevated thyroid markers can affect libido and sexual performance. High TSH levels may indicate hypothyroidism, which has been associated with erectile difficulties.
Privacy & confidentiality
Your results are delivered confidentially through a secure patient portal and are not shared with employers, insurance companies, or entered into your permanent medical record unless you choose to share them with your healthcare provider. All testing is conducted with complete discretion and privacy protection.
Frequently asked questions
Related tests
CPT Code: Multiple
This test may not be available in: NY, NJ, RI
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.
Select Lab Partner
This comprehensive ED panel is exclusively available through Quest Diagnostics and includes specialized biomarkers not offered in LabCorp's standard testing menu.
Not sure if this is the right test? Contact our care team for guidance.