Vitamin D is especially important for bone health. If you have low levels of this vitamin, you may be at risk for osteoporosis or other bone problems.

This test measures the level of vitamin B-12 in your blood. You need this vitamin to make red blood cells and for your nervous system to function as it should.

This test measures the amount of protein in your urine. When protein shows up in your urine, you may have kidney disease, diabetes, or another condition.

This test looks at a sample of your urine to see if it contains abnormal cells. The test is used to diagnose cancers of the urinary tract, including cancers of the kidney, bladder, ureter, and urethra.

This test looks at a sample of your urine under a microscope. It can see cells from your urinary tract, blood cells, crystals, bacteria, parasites, and cells from tumors.

This test looks at a sample of your urine, to help diagnose, find, or track many conditions, such as diabetes or urinary tract infections.

This test is used to find out whether you have gout. It can also be used to keep track of you during cancer treatment and to check your urine after you've had a kidney stone.

This test measures the amount of uric acid in your blood. Too much uric acid can cause gout or kidney stones.

This test measures the amount of urea nitrogen in your urine. The test can help diagnose kidney problems.

This test measures the amount of urea nitrogen in your blood. It can help your doctor find out if you have kidney disease or another kidney disorder.