Mr. Casper, a 55-year-old patient with Gastroesophageal Reflux Disease (GERD), consumes about 16 Tums antacid tablets daily. An Arterial Blood Gas (ABG) test is conducted to evaluate his acid/base balance. The results are as follows: pH 7.46, CO2 46, PO2 86, HCO3 29, SaO2 97%. What is the interpretation of these results?
Uncompensated Respiratory Acidosis
Compensated Metabolic Acidosis
Partially Compensated Metabolic Alkalosis
Partially Compensated Respiratory Acidosis
The Correct Answer is C
Choice A rationale:
Uncompensated Respiratory Acidosis is characterized by a low pH (less than 7.35) and a high pCO2 (greater than 45 mmHg). In this case, the pH is slightly elevated (7.46), making this option less likely.
While the pCO2 is elevated (46 mmHg), the body has begun to compensate, as evidenced by the elevated HCO3 (29 mEq/L). This partial compensation does not align with an uncompensated respiratory acidosis.
Choice B rationale:
Compensated Metabolic Acidosis would present with a normal pH (7.35-7.45) due to full compensation by the respiratory system. In this case, the pH is slightly elevated (7.46), which is not consistent with full compensation.
Additionally, the HCO3 is elevated (29 mEq/L), which is characteristic of metabolic alkalosis, not acidosis.
Choice C rationale:
Partially Compensated Metabolic Alkalosis is the most likely interpretation based on the ABG results. The pH is elevated (7.46), indicating alkalosis.
The HCO3 is also elevated (29 mEq/L), which is the primary cause of metabolic alkalosis.
The pCO2 is elevated (46 mmHg), which is a compensatory mechanism to try to normalize the pH. However, the compensation is not complete, as the pH is still slightly elevated.
This partial compensation is consistent with partially compensated metabolic alkalosis.
Choice D rationale:
Partially Compensated Respiratory Acidosis would present with a low pH (less than 7.35) and an elevated pCO2 (greater than 45 mmHg).
The HCO3 would also be elevated, but to a lesser degree than in metabolic alkalosis, as it's a secondary compensatory mechanism.
In this case, the pH is slightly elevated (7.46), making respiratory acidosis less likely.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale for Choice A:
Documenting and continuing to monitor is a crucial aspect of nursing care; however, in this scenario, it would not be the first action to take. The significant drop in blood pressure warrants immediate intervention to prevent potential complications.
While monitoring is essential, it does not actively address the underlying cause of the hypotension. Relying solely on monitoring could delay necessary interventions and potentially compromise patient safety.
It's important to balance monitoring with timely interventions to ensure optimal patient outcomes. In this case, calling for assistance takes priority over documentation and continued monitoring.
Rationale for Choice B:
Repeating the blood pressure in 15 minutes could delay critical interventions if the hypotension is severe. Timely action is crucial to maintain adequate tissue perfusion and prevent organ damage.
Waiting to recheck the blood pressure could potentially worsen the patient's condition and lead to adverse outcomes. It's essential to act promptly when a significant change in vital signs occurs.
Rationale for Choice D:
While notifying the primary healthcare provider is an important step, it may not be the most immediate action in this situation. The Rapid Response Team is specifically trained to handle acute patient deterioration and can provide timely interventions.
The Rapid Response Team can initiate life-saving measures, such as administering fluids or medications, while the primary healthcare provider is being notified. This ensures that the patient receives prompt and appropriate care.
Rationale for Choice C:
Calling the Rapid Response Team is the most appropriate first action in this scenario because it ensures a rapid and coordinated response to the patient's hypotension.
The Rapid Response Team can quickly assess the patient, initiate interventions, and potentially prevent further complications. They can also facilitate communication and collaboration among healthcare providers.
Early activation of the Rapid Response Team has been shown to improve patient outcomes in various clinical settings, including postoperative care.
Correct Answer is B
Explanation
Choice A rationale:
Explaining legal requirements to inform sex partners at this initial stage is not the most appropriate or supportive intervention.
The client is in a state of emotional distress and may not be receptive to information about legal obligations. It's crucial to first address the client's emotional needs and provide support before discussing legal matters.
Prematurely focusing on legalities could further overwhelm the client and potentially hinder the development of a trusting relationship with the nurse.
Choice C rationale:
Offering to inform the family for the client, while well-intentioned, may not respect the client's autonomy and right to privacy. The decision to disclose HIV status to family members is a personal one that should be made by the client, not the nurse.
It's important to empower the client to make their own choices about disclosure and provide support throughout the process.
Choice D rationale:
Determining if a clergy member would help could be a valuable resource for some clients, but it should not be the first or only intervention.
It's essential to first assess the client's individual needs and preferences regarding spiritual support.
Not all clients may find comfort in religious or spiritual guidance, and some may prefer to seek support from other sources.
Choice B rationale:
Assessing the client for support systems is the most appropriate initial intervention because it focuses on the client's immediate needs for emotional support and connection.
By identifying existing support systems (such as family, friends, or community organizations), the nurse can help the client access resources that can provide comfort, understanding, and assistance in coping with the diagnosis.
This approach recognizes the client's emotional state and prioritizes their psychosocial well-being, which is essential in the initial stages of coping with an HIV diagnosis.
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