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What is the primary purpose of using a CPAP machine for the treatment of obstructive sleep apnea (OSA)?

A.

To deliver a continuous flow of air pressure to keep the airway open

B.

To reduce daytime sleepiness

C.

To improve sleep quality

D.

To promote weight loss

Answer and Explanation

The Correct Answer is A

A. Delivering a continuous flow of air pressure to keep the airway open is correct. CPAP (Continuous Positive Airway Pressure) prevents airway collapse during sleep, allowing for uninterrupted breathing and oxygenation.  
B. Reducing daytime sleepiness is a benefit of CPAP use, but it is not its primary purpose—it is a secondary effect of improved oxygenation and sleep continuity.  
C. Improving sleep quality also occurs with CPAP therapy, but this is an outcome rather than the primary purpose.  
D. Promoting weight loss is not the function of CPAP therapy, though weight loss can help reduce OSA severity.


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Related Questions

Correct Answer is ["B","C","D"]

Explanation

A. Massaging the calves is incorrect. This action can dislodge a deep vein thrombus (DVT), increasing the risk of a pulmonary embolism.
B. Applying elastic compression stockings is correct. These help promote venous return, reducing the risk of blood stasis and clot formation.
C. Performing passive range of motion exercises is correct. These exercises prevent venous stasis, which is a major risk factor for DVT and PE.
D. Assessing legs for redness is correct. Redness, swelling, and warmth can indicate DVT formation, allowing for early intervention before it leads to PE.
E. Placing pillows under the client's knees is incorrect. This can impair circulation and increase the risk of clot formation by promoting venous stasis.

Correct Answer is {"A":{"answers":"B"},"B":{"answers":"A"},"C":{"answers":"B"},"D":{"answers":"B"}}

Explanation

  • Obtain intravenous (IV) access: IV access is necessary for administering medications, fluids, and emergency interventions.
  • Obtain the client's family history: While family history is important for long-term cardiac risk assessment, it is not a priority in the acute phase of chest pain management.
  • Apply continuous ECG monitoring: Continuous ECG monitoring is critical for detecting arrhythmias, ischemic changes, and potential myocardial infarction (MI).
  • Administer O₂ to maintain oxygen saturation greater than 90%: Oxygen therapy is indicated in clients with suspected MI if their oxygen saturation is below 90% to prevent further myocardial ischemia.

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