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A urine specific gravity test compares the density of urine to the density of water. This quick test can help determine how efficiently your kidneys are diluting your urine.
A complete blood count, or CBC, measures several components of your blood and can help diagnose a broad range of conditions, from anemia and to cancer.
Find information on a blood urea nitrogen test. Learn how to prepare for the test, what to expect during the test, and how to interpret your test results.