A nurse is caring for a client whose arterial blood gas results show the following results:. pH: 7.2. PaCO2: 50 mm Hg. HCO3: 24 mEq/L. The nurse should identify the client is experiencing which of the following acid-base conditions?
Respiratory acidosis.
Metabolic alkalosis.
Metabolic acidosis.
Respiratory alkalosis.
The Correct Answer is A
Choice A rationale:
The client's arterial blood gas (ABG) results indicate a low pH (acidemia) and high PaCO2, which is characteristic of respiratory acidosis. Respiratory acidosis occurs when there is inadequate removal of carbon dioxide (CO2) from the body, leading to an accumulation of CO2 and a decrease in pH. In this case, the high PaCO2 (50 mm Hg) indicates that the client is retaining carbon dioxide, likely due to impaired ventilation. The normal pH range is 7.35 to 7.45, and the normal PaCO2 range is 35 to 45 mm Hg. These ABG values reflect an acid-base imbalance in the respiratory system, specifically, respiratory acidosis.
Choice B rationale:
Metabolic alkalosis is characterized by an elevated pH and an increase in bicarbonate (HCO3) levels. This is not the condition described in the client's ABG results, as the pH is low (acidemic) and HCO3 levels are within the normal range (24 mEq/L).
Choice C rationale:
Metabolic acidosis is characterized by a low pH and a decreased HCO3 level. The client's ABG results do not align with metabolic acidosis since the pH is low (acidemic) and the HCO3 level is within the normal range (24 mEq/L).
Choice D rationale:
Respiratory alkalosis is characterized by a high pH and low PaCO2. The client's ABG results do not match this condition as the pH is low (acidemic) and the PaCO2 is high (50 mm Hg), indicating respiratory acidosis. Therefore, choice A, respiratory acidosis, is the correct interpretation of the ABG results.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is Choice A: "I will wear stockings with elastic tops."
Choice A rationale:
Wearing stockings with elastic tops can constrict blood flow in the legs, which is counterproductive for individuals with peripheral vascular disease. Compression stockings specifically designed for PVD are recommended, but these should be properly fitted and used according to medical advice.
Choice B rationale:
Avoiding crossing the legs at the knees is appropriate for individuals with PVD, as this can impede blood flow and worsen symptoms.
Choice C rationale:
Not going barefoot is important for clients with PVD, as it reduces the risk of injury and infection, which can be more serious due to compromised circulation.
Choice D rationale:
Using a thermometer to check the temperature of bath water is crucial for clients with PVD to avoid burns, since they may have decreased sensation in their extremities.
Correct Answer is C
Explanation
Choice A rationale:
Providing samples for sputum cultures every 6 weeks is not a necessary instruction for a client with pulmonary tuberculosis. Sputum cultures are typically performed at specific intervals to monitor the progress of treatment and assess for bacterial resistance. This information is essential for healthcare providers but not for the client's daily care and safety.
Choice B rationale:
Consuming alcohol in moderation while taking antituberculosis medications is not recommended. Alcohol can interact with these medications and reduce their effectiveness. It is essential to advise the client to avoid alcohol completely while on tuberculosis treatment to ensure the best possible outcome.
Choice C rationale:
Wearing a mask while out or around crowds of people is a crucial precaution to prevent the spread of tuberculosis, which is highly contagious. Tuberculosis is transmitted through the air when an infected person coughs or sneezes, making mask-wearing an effective measure to protect both the client and others. This instruction promotes the safety of the client and the community.
Choice D rationale:
Placing tissue soiled with respiratory secretions in a paper bag for later disposal is not a recommended practice. Infectious material should be properly disposed of in biohazard containers or bags designed for infectious waste. This instruction does not follow the standard safety protocols for managing infectious materials and is not in the best interest of the client's health.
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