You Obtain an SpO₂ Reading of 90% Using an Oximeter

question 93

Multiple Choice

You obtain an SpO₂ reading of 90% using an oximeter with an approximate accuracy of 5%. This could indicate a PO₂ as low as what level?

• A) 55 mm Hg
• B) 60 mm Hg
• C) 65 mm Hg
• D) 70 mm Hg

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Definitions:

Terminal Voltage

The voltage measured across the terminals of a device, which can be affected by the device's internal resistance and the current flowing through it.

Nicad Battery

A rechargeable battery variety utilizing nickel oxide hydroxide and cadmium metal as its electrode materials.

Cells

Basic units of a battery, generating electrical energy through chemical reactions, and can be combined to increase voltage or current capacity.

Thermocouples

Electrical devices consisting of two dissimilar conductors forming electrical junctions at differing temperatures, used to measure temperature gradients or temperature changes.