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A reticulocyte count is a blood test that measures how fast red blood cells called reticulocytes are made by the bone marrow and

Discusses serum osmolality test used to check for dehydration, certain poisons, cause of seizures, and other problems. Covers how

A sodium test checks how much sodium is in the blood. Sodium is both an electrolyte and mineral. It helps keep the water (the

A tuberculin skin test (also called a Mantoux tuberculin test) is done to see if you have ever been exposed to tuberculosis (TB)

A fallopian tube blockage often prevents successful passage of the egg to the sperm, or the fertilized egg to the uterus. Surgery

Looks at infertility. Includes info on various tests used to find out why someone can't get pregnant. Covers treatments, including

Discusses test used to find cause of a sore throat. Covers conditions caused by fungal or bacterial infection. Covers how test is

Discusses test used to check your heart and coronary arteries. Covers reasons cardiac catheterization is done. Looks at how to

The four main types of kidney stones are: Calcium stones. Most kidney stones are made of calcium compounds. Conditions that cause

Discusses shock wave lithotripsy, a procedure that uses shock waves to break a kidney stone into smaller pieces. Covers how it is