Erectile Function and Dysfunction Panel

The Erectile Function and Dysfunction Panel is a blood testing package designed to assess several health areas that may be relevant when a man has persistent or recurring difficulty achieving or maintaining an erection. Erectile difficulties can have vascular, hormonal, metabolic, neurological, psychological, and medication-related causes. For this reason, laboratory testing can provide useful information, but it cannot establish the complete cause on its own.

The panel examines hormone levels, glucose regulation, blood lipids, inflammation, blood cell counts, electrolytes, and selected markers of kidney, liver, and pancreatic function. These results can help identify abnormalities that may require further medical assessment or may influence decisions about the safe and appropriate management of erectile dysfunction.

What the panel includes

The Erectile Function and Dysfunction Panel contains 23 laboratory measurements grouped across several areas of health:

• Hormonal markers: total testosterone, free testosterone, prolactin, and thyroid-stimulating hormone (TSH).
• Glucose and metabolic markers: glucose and glycated hemoglobin (HbA1c).
• Cardiovascular and lipid markers: cholesterol, LDL, HDL, triglycerides, and C-reactive protein (CRP).
• Kidney function and electrolytes: creatinine, estimated glomerular filtration rate (eGFR), urea, sodium, potassium, and chlorides.
• Liver and digestive enzyme markers: AST, ALT, bilirubin, amylase, and lipase.
• Blood cell assessment: complete blood count.

Total and free testosterone provide information about androgen status, while prolactin and TSH may help identify hormonal or thyroid-related findings that require further evaluation. Glucose and HbA1c can indicate current and longer-term glucose regulation, and the lipid profile provides information about cardiovascular risk factors. Kidney, liver, electrolyte, enzyme, and blood count results add a broader baseline assessment that may be relevant before treatment decisions are made.

When this panel may be considered

The panel may be considered when erectile difficulties are persistent, recur over time, or occur together with reduced morning erections, lower sexual desire, fatigue, changes in body composition, or known metabolic or cardiovascular risk factors. It may also be useful when a doctor wants laboratory information before considering or reviewing medication for erectile dysfunction.

Some men have predominantly situational or psychological erectile difficulties, while others have several contributing factors at the same time. Normal laboratory findings therefore do not rule out erectile dysfunction, and abnormal values do not prove that a single laboratory finding is the cause.

How the testing process works

Step 1: Review of symptoms and medical information

Before testing, it is useful to record when the erectile difficulties started, whether they are constant or situational, whether morning erections are present, and whether sexual desire has changed. Current prescription medicines, over-the-counter products, supplements, chronic conditions, and previous laboratory results should also be reported.

Step 2: Confirming preparation instructions

Morning sampling may be recommended because testosterone levels vary during the day. Since the panel also includes glucose and lipid measurements, fasting may be requested. The exact fasting and timing instructions should be confirmed before the appointment. Regular medication should not be stopped unless a doctor has specifically advised this.

Step 3: Blood sample collection

A venous blood sample is collected and sent for laboratory analysis. The collection itself usually takes only a few minutes. Stress and recent physical activity can affect some measurements, particularly prolactin, so a short period of rest before sampling may be helpful.

Step 4: Laboratory analysis

The sample is analyzed for all included hormonal, metabolic, cardiovascular, blood, kidney, liver, electrolyte, and enzyme markers. The report shows measured values together with the laboratory reference intervals.

Step 5: Medical interpretation

The results should be interpreted together with the man’s symptoms, medical and sexual history, physical examination, medications, and cardiovascular risk profile. A low testosterone result may need confirmation with another early-morning measurement before testosterone deficiency is diagnosed or treatment is considered.

What the results can and cannot show

The panel may reveal findings such as altered glucose regulation, unfavorable lipid levels, thyroid abnormalities, low testosterone, elevated prolactin, inflammation, anemia, electrolyte imbalance, or changes in kidney or liver markers. Such findings may help direct additional testing or medical care.

The panel cannot directly assess penile blood flow, nerve function, pelvic anatomy, relationship factors, performance anxiety, or the full effect of medicines and psychological health. It also does not determine which erectile dysfunction treatment is appropriate without a clinical assessment.

Why a urological or andrological examination may still be needed

Erectile dysfunction is diagnosed through a medical, sexual, and psychosocial history, physical examination, and selected tests. Depending on the findings, further assessment may include blood pressure and cardiovascular evaluation, examination of the genital area, additional hormone testing, penile ultrasound, neurological assessment, or psychological support.

The panel therefore supports the diagnostic pathway but does not replace a urological or andrological examination. It should not be used to start, stop, or adjust erectile dysfunction medication or testosterone therapy without medical advice.

Preparing an inquiry

When sending an inquiry, include your age, how long the erectile difficulties have been present, whether they occur in all situations, whether morning erections or sexual desire have changed, and which medicines or supplements you use. Previous hormone, glucose, cholesterol, thyroid, kidney, liver, or cardiovascular results may also be useful.

You can send this information and any existing medical reports through ZagrebMed to clarify whether the panel, a urological or andrological examination, or another diagnostic step may be appropriate.