A 75-Year-Old Man with a Long History of COPD Is

question 27

Multiple Choice

A 75-year-old man with a long history of COPD is brought to the emergency department with shortness of breath.He has a persistent,productive cough with green purulent sputum,cyanosis of the lips and extremities,and is uncooperative.His arterial blood gas values on 2 L/min by nasal cannula are: pH = 7.25; PₐCO₂ = 90 mm Hg; PₐO₂ = 38 mm Hg; SₐO₂ = 59%; HCO₃⁻ = 38 mEq/L.The most appropriate action at this time is which of the following?

• A) IPPB
• B) Mask CPAP
• C) NIV via full face mask
• D) Invasive mechanical ventilation

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Definitions:

Apparent Distance Hypothesis

A theory explaining that emotions can alter the perceived distance of an object, with negative emotions making objects seem further away.

Cultural Bias Hypothesis

The theory suggesting that cognitive tests and other assessments may be biased towards the values and experiences of a specific cultural group.

Visible Spectrum

The portion of the electromagnetic spectrum that is visible to the human eye, typically encompassing wavelengths from about 380 to 740 nanometers.

Wave

A disturbance that transfers energy from one place to another without transferring matter.