A client has been admitted with chronic obstructive pulmonary disease (COPD). Diagnostic tests have been ordered. Which of the tests will provide the most accurate indicator of the client's acid-base balance?
Bronchoscopy
Pulmonary function tests
Pulse oximetry
Arterial blood gases
The Correct Answer is D
Rationale:
A. Bronchoscopy allows for direct visualization of the airways and may be used for sampling or clearing secretions but does not assess acid-base balance.
B. Pulmonary function tests evaluate lung volume and airflow but are not specific to acid-base status.
C. Pulse oximetry measures oxygen saturation, which reflects oxygenation but not CO₂ levels or pH status.
D. Arterial blood gases (ABGs) are the most accurate test for evaluating acid-base balance, as they provide values for pH, PaCO₂, HCO₃⁻, and PaO₂ — essential indicators in COPD management.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Rationale:
A. Introducing a regular diet is important but not the immediate priority in severe diarrhea.
B. Rehydration is the most critical initial step to prevent or treat dehydration and shock.
C. Maintaining fluid therapy is important after rehydration is initiated but not the first action.
D. Assessing fluid balance is necessary but secondary to initiating rehydration.
Correct Answer is ["A","C"]
Explanation
Rationale:
A. Magnesium plays a role in acid-base balance and influences potassium levels.
B. Sodium is important but less directly related to acid-base balance than potassium and magnesium.
C. Potassium is critical to monitor because acid-base imbalances often cause shifts in potassium levels, affecting cardiac function.
D. Calcium levels can be affected but are less immediately critical than potassium and magnesium.
E. Phosphate is involved in metabolism but is not a primary electrolyte monitored for acid-base balance.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.