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).
Credentialing plays an important part in assuring members' access to quality health care. Aetna's process is mature and efficient. For this reason, we are able to give members access to doctors quickly after they sign contracts with Aetna. Aetna confirms credentials for ALL medical types of health-care practitioners.