My 16 yr old very athletic son suddenly developed HTN 5 weeks ago, along with pulse in 90’s-114 at rest. This was accompanied with intermittent upper mid abdominal pain. After evaluation by a cardiologist, gastro and nephrologist, nothing determined as the cause. His labs showed high Hgb and a 24 hr urine collection showed creatinine of 3402 mg/dl, as well as high norepinephrine and low dopamine. He still has the abdominal pain even though he has been taking a blood pressure med for 3 nights now. He only had 1000ml of urine in 24 hrs (because we had to dump the first specimen) but this does not seem like enough for a 5’11” 180 lbs guy. He does not feel the need to urinate when he wakes up in the morning. I’m scared he has a kidney problem. What tests should be done?

I suggest further testing for an endocrine cause of the hypertension.  Your son may need to be seen by an endocrinologist.   I would also make sure that he is not taking any body building supplements that might cause these problems.

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