Which of the Following Are Acceptable Indicators of Hypoxemia for Purposes

question 44

Multiple Choice

Which of the following are acceptable indicators of hypoxemia for purposes of justifying home O₂ therapy?
1) Resting PaO₂ of 55 mm Hg (room air)
2) Drop in SaO₂ below 89% during ambulation
3) Resting arterial SaO₂ below 88% (room air)

• A)1 and 2 only
• B)2 and 3 only
• C)1 and 3 only
• D)1, 2, and 3

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Definitions:

Common Carotid

A major artery that supplies blood to the head and neck.

Femoral Artery

A major blood vessel in the thigh that supplies oxygenated blood to the lower portion of the body.

Posterior Tibial

Pertaining to the rear (posterior) tibial nerve or artery, which are located in the lower leg and supply regions of the foot.

Smooth Muscle Fibers

Specialized muscle tissues that contract involuntarily, found in the walls of internal organs such as the stomach, intestines, and blood vessels.