A patient who was involved in a motor vehicle crash has had a tracheostomy placed to allow for continued mechanical ventilation. How should the nurse interpret the following arterial blood gas results: pH 7.48, PaO₂ 85 mm Hg, PaCO₂ 32 mm Hg, and HCO₃ 25 mEq/L?
Metabolic acidosis
Metabolic alkalosis
Respiratory acidosis
Respiratory alkalosis
The Correct Answer is D
Choice A reason: Metabolic acidosis is characterized by a decrease in blood pH (less than 7.35) due to a primary decrease in bicarbonate (HCO₃). The arterial blood gas results in this scenario do not indicate metabolic acidosis, as the pH is elevated and HCO₃ is within the normal range.
Choice B reason: Metabolic alkalosis is characterized by an increase in blood pH (greater than 7.45) due to a primary increase in bicarbonate (HCO₃). In this case, the pH is indeed elevated, but the bicarbonate level is normal, making this condition unlikely.
Choice C reason: Respiratory acidosis is characterized by a decrease in blood pH (less than 7.35) due to a primary increase in PaCO₂. The arterial blood gas results show an elevated pH and a decreased PaCO₂, which are not consistent with respiratory acidosis.
Choice D reason: Respiratory alkalosis is characterized by an increase in blood pH (greater than 7.45) due to a primary decrease in PaCO₂. In this scenario, the pH is elevated at 7.48, and the PaCO₂ is decreased at 32 mm Hg, indicating respiratory alkalosis. The bicarbonate level is within the normal range, further supporting this interpretation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Preventing DVT and VTE is a critical component of patient care in hospitals. These conditions can lead to serious complications such as pulmonary embolism, which can be life-threatening. Therefore, hospitals implement various measures, including the use of anticoagulants, compression devices, and early mobilization, to reduce the risk of DVT and VTE in hospitalized patients.
Choice B reason: The statement that DVT and VTE prevention is not a core measure for hospitalized patients is incorrect. Ensuring that patients are protected against these potential complications is a fundamental aspect of inpatient care to promote patient safety and improve outcomes.
Correct Answer is D
Explanation
Choice A reason: Health care providers such as medical doctors (MDs) and nurse practitioners (NPs) are responsible for diagnosing and treating medical conditions. While they play a crucial role in patient care, the development of a detailed, individualized nursing plan of care typically falls under the domain of nursing professionals.
Choice B reason: Licensed practical/vocational nurses (LPNs/LVNs) provide basic patient care under the supervision of registered nurses and physicians. They assist with implementing care plans but do not usually develop comprehensive nursing plans of care themselves.
Choice C reason: Nursing supervisors oversee the nursing staff and ensure that nursing care is delivered effectively. They may be involved in developing and overseeing care plans at a higher level but are not typically responsible for creating the individualized care plans for each patient.
Choice D reason: Registered nurses (RNs) are trained and licensed to develop individualized care plans that include nursing diagnoses, interventions, and outcomes. They work closely with patients to create and implement care plans that address specific health needs and promote self-management.
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