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Osmolality Urine Test

An Osmolality Urine Test is useful in monitoring the level of water in the body and to check the ability to produce urine.

Test Code: 678

Also Known As:

Methodology: Freezing Point Depression

Preparation: No special preparation required.

Test Results: 3-5 Days. May take longer based on weather, holiday or lab delays.


This test will determine the function of the kidneys and help to determine if your body's electrolyte balance is normal.  It will also measure the number of different compounds such as:

  • chloride
  • glucose
  • potassium
  • sodium
  • urea

It is a marker for how well the kidneys are working and will also help to diagnose certain issues.  This test could be ordered if the following symptoms are being experienced:

  • abnormally high or low blood sodium level
  • excessive urination
  • excessive thirst
  • confusion
  • nausea
  • lethargy
  • seizures or coma
  • dehydration
  • chronic diarrhea 


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