Category: U

The bivalent uranium radical U02+. It forms salts with many acids. An example is uranyl nitrate, U02 (N03)2.  

A radioactive element, the parent of radium and other radio elements; atomic weight, 238.029; atomic number, 92. A radioactive metallic element, not naturally found in its pure state, but commonly extracted from ores like pitchblende, carnotite, and uraninite. Radioactive decay of uranium leads to radiation emission and produces a sequence of radioactive byproducts, such as…

In descriptions of genetic material, codons or base pairs that are on the 5′ side of a specific gene.  

To increase the responsiveness of a cell or organ to a stimulus.  

Neurological damage to the corticospinal or pyramidal tract in the brain or spinal cord. This lesion results in hemiplegia, paraplegia, or quadriplegia, depending on its location and extent. Clinical signs include loss of voluntary movement, spasticity, sensory loss, and pathological reflexes.  

A type of sleep-disordered breathing, caused by increased airflow obstruction, in which a person awakens multiple times and then suffers daytime drowsiness or fatigue.  

Any potentially life-threatening abnormality in which the flow of air into and out of the lungs is partially or completely blocked by such conditions as laryngeal swelling, foreign bodies, or angioedema.  

A commonly used acronym for ureteropelvic junction obstruction. The ureteropelvic junction is the last segment of the ureter, through which urine normally passes into the bladder. It is a common location for kidney stones to lodge and obstruct the flow of urine when they pass from the renal pelvis down the ureter.  

To assign a higher billing code to a patient visit than is justified by common practice or law.  

A timed test of lower-extremity mobility. It measures the time required to rise from a chair, walk 10 ft, turn, and return to the sitting position. Performance on this test is affected by abnormal gaits that increase the risk of falling.