Fluke Biomedical ProSim 4 User Manual
Page 44
ProSim™ 4
Users Manual
A-4
Hertz
A unit of frequency equal to one cycle per second. Used to measure electrical
current and light, especially ultraviolet radiation (as in fluorescent light).
Impedance
A measure of the total opposition to current in a circuit.
Joule
A unit of energy, equal to the work done when a current of one ampere is passed
through a resistance of one ohm for one second.
Kilogram
The fundamental unit of mass in the International System, about 2.2046 pounds.
LCD
Liquid crystal display. A digital display consisting of a liquid crystal material
between sheets of glass that becomes readable in the presence of an applied
voltage.
Meter
The fundamental unit of length, equivalent to 39.37 inches, in the metric system.
Millivolt
One-thousandth of a volt.
Multiple PVCS: Paired PVCS; Run 5 PVCS; Run 11 PVCS
Three series of multiple PVCs run as one-time (nonrepeating) events. The term
multiple PVCs refers to any condition where two or more PVCs occur in a row.
Standard PVCs of this type include a pair of PVCs (also known as a couplet), a
run of five PVCs in a row, and a run of eleven PVCs in a row.
Myocardium
The thick muscular layer of the heart, located between the endocardium at the
inside and the epicardium at the outside walls of the heart.
Nanometer
One-billionth (10
-9
) of a meter.
Nanosecond
One billionth (10
-9
) of a second (one thousand-millionth of a second). Electricity
travels approximately one foot per nanosecond.
Nodal Rhythm
Normal rhythm, but with a P wave that originates in the AV node, and a P-R
interval that is very short. Nodal rhythm, also referred to as junctional rhythm or
junctional escape, is a condition where the predominant pacemaker is the AV
node rather than the SA node.
Noninvasive
Not tending to spread; especially, not tending to invade healthy tissue.
Ohm
A unit of electrical resistance equal to that of a conductor in which a current of
one ampere is produced by a potential of one volt across its terminals.
Patient Leads
Cables that connect a patient directly with the monitor. Sometimes called applied
parts.