John, I remember googling disciplined doctors or something and it brought up
the info I needed.  Also, if you google AMA physician search and go through
the steps I believe you can find your info here too.
good luck
Jackie

John,
I am not a doctor. Yes, your relative should see a urologist. You may want
to do a google search related to Prostrate and also Enlarged Prostrate.
It's a common problem in men over the age of 60. One of the symptoms
according to my medical book is "increased urinary urgency and frequency,
especially at night".
Jason

"Banqueting
           With her in her wind-walled palace,
           Underneath her azured dais,
           Quaffing, as your taintless way is,
               From a chalice
Lucent-weeping out of the dayspring."
               So it was done:
I in their delicate fellowship was one ~
Drew the bolt of Nature's secrecies."

~ Francis Thompson,

His GP should have checked him for prostate enlargement.  It is possible his
prostate is fine.  Have you asked about that?

He has parkinsons and dementia.  You should make sure he has good insurance
because he most likely will not get better.  And watch his reactions to the
sleeping medications because they can cause problems which are worse than
insomnia.  

Speaking from experience.  

Ora

I would look into erythrocytosis / polycythemia ..

An increase in iron in the body has been shown to produce increased red
blood cells .. and increased red blood cells have been linked to
increased vasopressin ..

Increased vasopressin leads to polyuria ..

Decreasing red blood cell count / treating erythrocytosis leads to
decreased incontinence ..

Coincidentally Parkinsons' recently has been found to have some
significant recovery by elimination of red meat {high iron] and
inclusion of riboflavin {iron chelator] in the treatment regimen.

Excessive voiding is evidence of a impairment of vasopressin and
impairment of vasopressin
is associated with .. excess .. red blood cells  .. causing .. polyuria
/
excess voiding ..

J Vet Intern Med 1997 Sep-Oct;11(5):300-3

Polyuria and polydipsia and disturbed vasopressin release in 2 dogs
with
secondary polycythemia.

  van Vonderen IK, Meyer HP, Kraus JS, Kooistra HS

 Department of Clinical Sciences of Companion Animals, Faculty of
 Veterinary Medicine, Utrecht University, The Netherlands.

 In dogs, secondary polycythemia (SP) may be associated with polyuria
 and polydipsia (PU/PD). The pathogenesis of this PU/PD has not yet
 been explained. We hypothesized that hyperviscosity and increased
 blood volume in SP might affect vasopressin (VP) release, resulting
in
 PU/PD. This hypothesis was tested in 2 dogs with SP caused by renal
 neoplasia and PU/PD. Osmoregulation of VP release was studied by a
 modified water deprivation test and by investigating the VP response
 to hypertonic saline infusion. Water deprivation test results were
 consistent with an inability to produce concentrated urine despite
 increasing plasma osmolality. During hypertonic saline infusion, the
 osmotic threshold of VP release was markedly increased in both dogs,
 resulting in a delayed VP response to increasing plasma osmolality.
 The sensitivity of VP release was low normal in both dogs. We
conclude
 that blood hyperviscosity and increased blood volume led to impaired
 VP release and polyuria.

 PMID: 9348498, UI: 98009104

    _________________________________________________________________

Coincidentally .. again .. diabetic have JUST been found to be ..
hyperviscous .. and what do THEY .. have .. ?

Increased urination .. ?

Yep ..

Who loves ya.
Tom..

Jesus Was A Vegetarian! http://jesuswasavegetarian.7h.com

Man Is A Herbivore!
http://pages.ivillage.com/ironjustice/manisaherbivore

DEAD PEOPLE WALKING
http://pages.ivillage.com/ironjustice/deadpeoplewalking

Remember rule #1: Never believe what a patient tells you their doctor
said.

Why don't you get the relative to sign a release form for you to talk
to the doctor yourself? I'm sure you would be much more satisfied than
soliciting useless advice off Usenet.

PF