What is a pudendal nerve motor latency test scan?
This test studies the function of your nerves in your pelvic floor which control the muscles in your back passage.
You may be referred for this test if you have been experiencing troublesome bowel problems.
These problems can often be caused by injuries or weakness to the muscles in your back passage or problems with the wall of your back passage (anal canal).
How does the pudendal nerve motor latency test work?
Your physiologist will insert a finger-size probe, with a small electrode on it, through your back passage into your rectum.
It may feel uncomfortable when the probe is inserted, but it should not be painful. You may feel embarrassed, but we understand this and will help you feel at ease throughout.
Once this is in the correct position, a small electrical current will be passed over your nerves causing your pelvic floor muscles to contract. Your physiologist will measure the time from stimulation of the nerves to contraction of the muscles.
You may feel a pulsing, twitching or prickling sensation in your back passage while we take measurements, which may be a little uncomfortable.
How much does the pudendal nerve motor latency test cost?
If you are paying for this test yourself and not through private medical insurance, the cost will be £460.
How do you prepare for a pudendal nerve motor latency test scan?
You do not need any special preparation for your test. You may eat and drink as normal and continue with any normal medication.
What does the pudendal nerve motor latency test diagnose?
This test evaluates the function of the nerves in your pelvic floor which control your muscles in your back passage.
Following your test, your data will be analysed, and results written up into a report. The report will be sent to both you and your referring consultant/doctor, who will explain the results to you in a follow-up consultation.
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