Category: P

A law that states that the rapidity of the capillary current is directly proportional to the fourth power of the radius of the capillary tube, the pressure on the fluid, and inversely proportional to the viscosity of the liquid and the length of the tube.  

The unit of viscosity; the tangential shearing force required to be applied to an area of 1 cm2 between two parallel planes of 1 cm2 in area and 1 cm apart in order to produce a velocity of flow of the liquid of 1 cm/sec.  

Use of testing equipment in an area near the patient, rather than sending the specimen to a laboratory. This enables health care providers to learn the results of the test immediately. Glucometers were the first of many new devices that allowed tests previously performed in the laboratory to be done in the clinical setting. Examples…

In dental or medical radiography, the location on the face toward which the central ray is directed. Points of entry are typically in the region of the apices of the teeth.  

Any location where patient care is provided, including, e.g., the bedside, radiology suite, emergency room, clinic, or ambulance.  

One of two points so situated that the optical axis is cut by the two principal planes.  

A colloquial term describing a critical biochemical event that indicates lethal, irreversible changes in cells following ischemic cell injury.  

The point on the chest wall over the heart at which the contraction of the heart is best seen or felt; normally at the fifth intercostal space in the midclavicular line.  

A cone of paper used in drying or in keeping liquid medicines in a root canal of a tooth.  

The sharp end of any object.