Category: R

A measurement of the total solids in a solution, done by detecting the change in the pathways of light going through the solution.  

A test done on blood to find out why a patient has anemia.  

A count of the number of red blood cells in a specimen of whole blood.  

Repeat bouts of the same type of infection in the same person.  

A blood test to detect syphilis.  

A test using serum immunoglobulin E to detect allergic reactions to environmental substances such as animal hair, grasses, cosmetics, and dust.  

A technique in which radiofrequency is used to treat life-threatening irregularities in the heartbeat. Ablation in which an electrode delivers a low-voltage, high-frequency current to cauterize and destroy abnormal tissues. Destruction of electrical conduction pathways in the heart with an intracardiac catheter that removes the abnormal conducting tissues has been used to treat Wolff-Parkinson-White syndrome,…

A test for thyroid disorders; the thyroid’s absorption of oral or intravenous radioactive iodine is measured with a scintillation counter at 1, 6, or 24 hours after ingestion.  

The loss of radioactive energy. The continual loss of energy by radioactive substances. Disintegration of the nucleus by the emission of alpha, beta, or gamma rays eventually results in the complete loss of radioactivity. The time required for some materials to become stable may be minutes and, for others, thousands of years. The gradual waning…

A noninvasive procedure that shows the size and outline of the heart; electric impulses are passed over the surface of the chest, picked up by radar tracking equipment, and projected on a fluoroscopic screen.