Viagra and Tests for Erectile Dysfunction
You may think that you have erectile dysfunction and you may want yourself to get tested first. Sometimes we want to make sure that we really have the condition before purchasingViagra . The three common testing procedures are the Doppler ultrasound test, intracaversosal injection test, penile nerves functions tests, and the NPT or Nocturnal Penile Tumescence Test.
The Doppler ultrasound test is used to assess venous leakage, signs of atherosclerosis, and calcifications of the penile tissues. Ultrasound is then used to see the vascular dilation and determine the penile blood pressure. The speed and direction of the penile blood flow are measured through the ultrasound. In some more modern testing laboratories, the sounds are transferred to a computer to produce a three �dimensional image of the inner structure of the penis. With such imagery, the doctor interpreting the result can more accurately conclude whether erectile dysfunction or none, and what are the probable histological abnormalities that caused the condition. For example, people suffering from atherosclerosis show calcification of penile blood vessels shown in the ultrasound.
Another test is the intracaversosal injection test. The test starts by injecting prostaglandin formed in the body to induce erection. Changes and differences from the flaccid state to the erected state are noted for further analysis. The length of erection and the fullness of erection are also determined.
The next one is the penile nerves function test to determine if there is enough nerve sensation. The doctor presses the head of the penis that should cause the anus to contract. The anus should contract as a normal reaction; however people with nerve damage show no contractions in the anus when the physician presses the head.
The most common one and often covered by health insurance is the Nocturnal Penile Tumescence Test. Normal Men have three to five erections while asleep particularly during the REM (Rapid Eye Movement) Stage. Absence of erections may point out defects in the nerve functions of the penile blood supply. This test can be done at home or in a special laboratory. There are two common devices used for this test, one is the snap gauge or an electronic monitoring device. These devices determine whether erections occurred, their durations, intervals, and other important data. Men who claim that they have erectile dysfunction but show good erections in the NPT test might be suffering from ED causes not due to physical causes but psychological ones.
Make sure that you really have erectile dysfunction before you buy viagra . Some testing laboratories require testing requests while others do not. If you want to determine whether you have the disorder or not, visit a testing clinic first before making a drastic move.
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