The Nurse Explains to a Patient That the Pulse Oximeter

question 15

Multiple Choice

The nurse explains to a patient that the pulse oximeter can measure the arterial oxygen by:

• A) assessing the amount of blood passing through the sensor.
• B) assessing the relative warmth of the skin on the monitored part.
• C) measuring the oxygenated hemoglobin through a capillary bed.
• D) measuring the respirations to the blood pressure via infrared rays.

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Definitions:

Saltatory Conduction

A process whereby nerve impulses jump between gaps in the myelin sheath of neurons, speeding up signal transmission.

Nodes

Points of intersection or branching in a network or circuit, often used in the context of biological and technological systems.

Sodium Channels

Ion channels found in cell membranes that allow sodium ions to flow into or out of cells, playing a crucial role in generating and transmitting electrical signals.

Initial Segment

Area near where the axon meets the cell body that is rich in voltage-gated channels, which generate the action potential.