Medical Laboratory Tests For Diagnosis of Erectile Dysfunction

The diagnosis of erectile dysfunction is exposed to men who have noted the impossibility to have an erection or to maintain an erection for 3 months and longer.

Normal diagnostics and treatment of this problem are possible only with the full trust and compliance between the patient and the doctor.

Physical Examination of Patients With Erectile dysfunction

The first step in the assessment of erectile dysfunction stage is to collect detailed medical and psychological history of the patient and his partner. It is hard for the man to come at the first visit to the doctor with his partner. But usually, it must be done at the second or third visit.

The mechanism of the development of erectile dysfunction can be:

vascular;
neurogenic;
hormonal.

Physical examination may be a key to identifying the causes of erectile dysfunction. For example, when the absence of response to the tactile stimuli of the penis can be caused by pathology of the nervous system. During the medical examination, the doctor can reveal anatomical disorders and hypotestosteronemia signs such as small size of the testicles, lack of hair on the face, mammary gland development. All these can suggest about hormonal problems.

Laboratory Tests: How To Diagnostic Erectile Dysfunction

Blood and urine analysis can tell a lot about patient diseases. Of course, erectile dysfunction may also be suspected in this way. Sometimes the patients don`t say that they have erectile disorders.

With the help of laboratory test doctors can reveal:

diabetes (glucose blood test);
atherosclerosis (biochemical analysis of blood lipoproteins and cholesterol);
renal failure (urine analysis);
the level of sexual hormones in the blood;
once markers as well as the PSA (a substance that is found in the blood of patients with tumors of the prostate gland).

It is necessary to carry out many laboratory researchers. All patients should pass glucose, blood lipid profile tests and the level of sex hormones. This analysis should include total testosterone and free testosterone levels. Blood for these tests needs to take early in the morning and on an empty stomach.

Additional studies such as a blood test for prostate-specific antigen (PSA) should be prescribed for each patient older than 50 years.

In additional, it is necessary to conduct other blood hormonal analysis:

prolactin level;
follicle-stimulating hormone (FSH);
luteinizing hormone (LH);
estradiol;
dihydrotestosterone;
dehydroepiandrosterone globulin;
sex hormone binding (SHBG);
thyroid hormones.

Specialized Diagnostic Tests

Specialized erectile dysfunction diagnostic includes such analysis:

evaluation of tumescence and nocturnal penis rigidity;
duplex ultrasound of penis arteries;
intracavernous injection test (PAB-test);
arteriography.

Evaluation of tumescence and nocturnal penis rigidity makes a point to the safety mechanism of erection if during the two-night erection and rigidity (at least at the level of 60%) presence and continuing for 10 minutes.

Specialized diagnostic tests can be used if it is hard to indicate what link of erection was damaged.