What is the primary reason for implementing contact precautions for a patient with MRSA?

A. Administer diuretics:Diuretics are primarily used to treat fluid volume excess or hypertension by increasing renal excretion of water and sodium. They do not address the underlying cause of respiratory alkalosis, which is an excessive loss of carbon dioxide. They are inappropriate for managing primary acid-base disturbances of respiratory origin.

B. Initiate fluid restriction:Restricting fluid intake is a management strategy for conditions like SIADH or congestive heart failure. It has no impact on the partial pressure of arterial carbon dioxide or the alveolar ventilation rate. This intervention is unrelated to the physiological correction of alkalotic pH levels.

C. Encourage the patient to breathe into a paper bag:Respiratory alkalosis is caused by hyperventilation, which leads to hypocapnia and an elevated blood pH. Rebreathing exhaled air increases the inspiratory concentration of carbon dioxide, helping to restore normal PaCO2 and pH. This is a classic intervention for non-organic, anxiety-induced hyperventilation.

D. Provide supplemental oxygen therapy:Oxygen is indicated for hypoxemia but does not correct a high pH caused by low carbon dioxide levels. In some cases, providing high-flow oxygen can actually encourage further hyperventilation if not monitored correctly. The primary goal in alkalosis is carbon dioxide retention rather than oxygen supplementation.

A. Increased reliance on untested medications:Evidence-based practice (EBP) specifically seeks to eliminate the use of untested or unproven therapies. It mandates that all interventions be supported by rigorous scientific data and clinical trials. This increases patient safety by ensuring that medications have a proven efficacy and safety profile.

B. Increased use of trial-and-error methods:Trial-and-error is the antithesis of EBP, as it relies on unsystematic attempts rather than proven research. EBP reduces the uncertainty of clinical decision-making by providing a structured framework based on the best available data. It moves nursing away from guesswork toward standardized, high-quality care.

C. Improvement in patient outcomes and care quality:By utilizing interventions that have been scientifically validated, EBP ensures that patients receive the most effective treatments available. This leads to faster recovery times, fewer complications, and a higher standard of clinical excellence. It is the primary driver of modern healthcare improvement.

D. Reduction in healthcare costs only:While EBP can lead to cost savings by reducing ineffective treatments and hospital stays, its primary focus is on the quality of patient care. Financial benefits are a secondary positive outcome of improved clinical efficiency. The core benefit remains the enhancement of the patient's health and safety.