A nurse is reviewing a client's arterial blood gas (ABG) results. Which of the following ABG results should the nurse anticipate when caring for a client with acidosis?
pH 7.42, PaCO2 48 mm HG, HCO3 25 mEq/L
pH 7.28, PaCO2 63 mm HG, HCO3 22 mEq/L
pH 7.49, PaCO2 30 mm Hg, HCO3 35 mEq/L
pH 7.36; PaCO2 42 mm Hg, HCO3 26 mEq/L
The Correct Answer is B
A. This result shows a slightly elevated PaCO2, which could suggest respiratory compensation for a metabolic alkalosis, not acidosis, as the pH is within the normal range.
B. This result indicates both a low pH and an elevated PaCO2, which are consistent with respiratory acidosis. The low HCO3 also suggests a metabolic acidosis component, making it the best match for a client with acidosis.
C. The elevated pH indicates alkalosis. The low PaCO2 and high HCO3 further suggest a primary respiratory alkalosis with metabolic compensation.
D. These values are within normal limits, indicating neither acidosis nor alkalosis.
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Naxlex Comprehensive Predictor Exams
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Correct Answer is []
Explanation
Condition Most Likely Experiencing: Heart failure.
The client presents with signs and symptoms consistent with heart failure, including cardiomegaly, bibasilar pleural congestion on chest x-ray, elevated BNP level, and vital signs indicating hypertension (BP 146/98 mm Hg), tachycardia (pulse rate 106/min), and tachypnea (respirations 24/min). Additionally, the client is prescribed medications commonly used to manage heart failure, such as digoxin and carvedilol, and is receiving a diuretic (furosemide) to address fluid overload associated with heart failure.
Action to Take:
Elevate the head of the bed: Elevating the head of the bed helps reduce venous return to the heart, decreasing preload and potentially alleviating symptoms of heart failure, such as dyspnea and orthopnea. It can also help prevent aspiration in clients with compromised cardiac function. Encourage intake of a low-sodium diet: A low-sodium diet is essential in managing heart failure as it helps reduce fluid retention and edema by decreasing fluid volume overload. Sodium restriction helps minimize fluid accumulation, which is crucial in preventing exacerbations of heart failure.
Parameter to Monitor:
Urinary output: Monitoring urinary output is important in assessing fluid balance and response to diuretic therapy in clients with heart failure. Decreased urinary output may indicate worsening heart failure or inadequate response to diuretic therapy, whereas increased output may suggest over-diuresis or improvement in heart failure symptoms.
Blood pressure: Monitoring blood pressure helps assess the effectiveness of treatment in managing heart failure and controlling hypertension, a common comorbidity. Hypertension can exacerbate heart failure, so monitoring blood pressure trends helps guide adjustments in medication therapy to achieve optimal blood pressure control and improve cardiac function.
Correct Answer is D
Explanation
A. The client expresses feelings of frustration and difficulty coping with the chronic nature of RA: This indicates the client is struggling emotionally, which is common in chronic illnesses but does not directly reflect the effectiveness of the RA treatment regimen.
B. The client's C-reactive protein (CRP) levels have remained stable since the initiation of treatment: While stable CRP levels can indicate control of inflammation, they do not show improvement. Ideally, effective treatment would reduce CRP levels.
C. The client demonstrates improved range of motion in the affected joints during physical therapy sessions: Improved range of motion is a positive outcome, but it may not fully represent the overall effectiveness of the RA treatment, as joint damage can still progress.
D. The client's radiographic images show no progression of joint erosion compared to images from six months ago: This is the best indicator of effective RA management as it directly shows that the treatment is preventing further joint damage, which is a primary goal in managing RA.
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