Dialysis Technician Practice Exam

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What is the measurement of ions or particles that carry an electrical charge known as?

Conductivity
Viscosity
Osmolarity
Filtration

The correct answer is: Conductivity

The measurement of ions or particles that carry an electrical charge is known as conductivity. Conductivity refers to the ability of a solution to conduct electric current, which is directly related to the concentration and mobility of charged particles, such as ions. In the context of dialysis and other medical procedures, monitoring conductivity is crucial because it reflects the ionic composition of the dialysis solution and can inform the technician about the effectiveness of the treatment. Viscosity refers to a fluid's resistance to flow, which is not related to the measurement of electrical charge. Osmolarity measures the total concentration of solute particles in a solution, reflecting the number of particles rather than their electrical charge. Filtration is a physical process used to separate solids from liquids or gases, and it does not measure the properties of charged particles. Therefore, conductivity is the appropriate choice for understanding the measurement of charged ions or particles.