This test is used to see if a child has certain chromosome changes.

This test looks for two enzymes from the pancreas, to find out how well the pancreas is working. This test is used for people with cystic fibrosis.

This test measures the amount of triglycerides in your blood. This test is part of a group of cholesterol and blood fat tests called a fasting lipoprotein panel, or lipid panel.

This test is used to check a sample of blood or urine for tricyclic antidepressants. Although these medicines can be helpful in normal doses, taking too much can be fatal.

This test measures your level of TSH, a hormone made by your pituitary gland. You may need this test if you have symptoms of thyroid problems.

This test measures the amount of thyroid antibodies in your blood. The test can help find out whether you have a problem with your thyroid.

This test measures the level of the medicine theophylline in your blood. Having too much of this medicine in your body can be life-threatening.

This test measures the level of testosterone in your blood. Both men and women make this hormone.

This test measures both your total and free testosterone levels. Having levels that are too high or too low can cause health problems.

This test screens for tuberculosis by looking for the bacteria in the sputum, urine, or cerebrospinal fluid.