Hello, Sorry to hear about your problem.
In your case the reduced libido and erection problems are probably seen owing to your medical history and almost all of them play a role in developing Erectile Dysfunction. Before informing you about the tests I would like to tell you, that you must feel free to discuss everything with your physician. It would have been better if you had described whether the erection problem is only during the sexual activity or even during sleep(nocturnal erection) . If the erections are not seen even during sleep, it points towards Vascular or nerve problem.
The Blood tests that should be done are:
- Glucose
- HbA1C
- Hormones like
- Prolactin
- Testosterone
- Luteinising Hormone (LH)
- Follicle- Stimulating Hormone (FSH)
These are the usual tests available and done routinely.
Other rare tests done for further management are
- Nocturnal Tumenescence monitoring- done using an instrument called plethysmograph which is placed around the penis overnight .This is to find out if the blood supply and nerve supply are sufficient to allow erections to occur during sleep.
- Intracavernosal injections meaning injections into the shaft of penis with papaverine or PGE1
to test the adequacy of the blood supply.
Additionally Angiography, nerve conduction studies can also be done.
There are several treatment options available, and the condition improves with regular treatment and avoiding stress.
Hope this is of some help.