In brief: Mostly water... Urine is 95% water. The remaining constituents, in order of decreasing concentration are: urea, chloride, sodium, potassium, creatinine, & other dissolved ions, inorganic and organic compounds. The kidneys make the urine, first by filtering the blood, then by adding waste products and extracting essential compounds. In brief: Mostly water... Urine is 95% water. The remaining constituents, in order of decreasing concentration are: urea, chloride, sodium, potassium, creatinine, & other dissolved ions, inorganic and organic compounds.
Aetna Medicare Advantage Plans. Aetna Medicare is a Medicare Advantage organization with a Medicare contract. A Medicare approved Part D sponsor. Plans are offered by Aetna Health Inc., Aetna Health of California Inc. and/or Aetna Life Insurance Company (Aetna).
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