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Urinary problems, blood tests results and urinalysis fine

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Practicing since : 1992
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More urine output when laying down/flat

I have few strange urination problems going on for almost a year now. Some days, I urinate less than what I drink and some days more.

Here it goes. Iam 32yrs old and take medication Diovan + Diuretic for high blood pressure in the morning (both). My Blood pressure is in the range of 120-140/80-90 with medication and at seated position (less than 120/80 while in sleeping position). Some days I urinate one full bladder 3-4hrs after taking the diuretic and then the urination is normal throughout the day. Some days, I urinate much less even after 5hrs of taking the diuretic medication. Drinking plenty of water OR no water doesn't make any difference (it can be drinking less water and more urination OR drinking plenty of water and less urination).

Now the problem is, few days (any of the above condition days), when I lay down flat in the evening, within 1hr I produce a full bladder (colorless) urine. And almost everyday, my first urine in the morning is very less and dark (again, irrespective of water intake OR urination on previous day).

I tried to explain to my doctor and he says he can't think of any medical condition causing this. I had many blood tests & urinalysis and everything came out fine. I had a heart echo too, which did not show anything wrong either. I also don't have any edema anywhere. I don't have a weight gain. My weight reduces by around 1pound the day after having lot of urination.

Though the blood test results & urinalysis came out fine, I can't stop worrying about this, as it is not normal for anyone.

Can anyone suggest any other tests that I can ask my doctor to do? I have an appointment with my PCP coming up in a week.

Posted Tue, 17 Apr 2012 in Urinary and Bladder Problems
Answered by Dr. Chandan Choudhary 47 minutes later
Thanks for posting your query.
I would like to reassure you that if all the reports are normal, then you have no reasons to worry.
Normally, passing more than 1.5 litres of urine per day is normal but there is wide range of variation from person to person.
I would suggest that the following tests be done, to rule out any possibilities:
•     Kidney function tests (Serum creatinine and blood urea)
•     Urine analysis
•     Ultrasonography of the kidney-ureter-bladder region

If these tests are normal, then you don’t need to worry at all

I hope I have answered your query. Please accept my answer if you have no further queries.

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