A nurse is reviewing the ABG values of a client. The client has a pH of 7.2, PaCO2 of 60 mm Hg, and HCO3 of 25 mEq/L. The nurse should identify that the client has which of the following acid-base imbalances?
Respiratory alkalosis
Metabolic alkalosis
Respiratory acidosis
Metabolic acidosis
The Correct Answer is C
A. Incorrect. The client does not have respiratory alkalosis because respiratory alkalosis is characterized by a low PaCO2 (less than 35 mm Hg) and a high pH (greater than 7.45).
B. Incorrect. The client does not have metabolic alkalosis because metabolic alkalosis is characterized by a high HCO3 (greater than 26 mEq/L) and a high pH (greater than 7.45).
C. Correct. The client has respiratory acidosis because respiratory acidosis is characterized by a high PaCO2 (greater than 45 mm Hg) and a low pH (less than 7.35).
D. Incorrect. The client does not have metabolic acidosis because metabolic acidosis is characterized by a low HCO3 (less than 22 mEq/L) and a low pH (less than 7.35).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason
Increased food intake does not show medication is effective: Increased food intake is not a specific indication of donepezil's effectiveness. While some clients with dementia may have improved appetite due to reduced agitation or confusion, it is not directly related to the medication's therapeutic effect.
Choice B reason:
Can perform ADLs independently is inappropriate: The ability to perform activities of daily living (ADLs) independently can be a positive outcome in clients with dementia. However, it may not be solely attributed to donepezil, as ADLs can be influenced by various factors, including the client's overall condition and support received.
Choice C reason:
Improved short-term memory is correct. One of the primary goals of using donepezil is to improve memory and slow the decline in cognitive abilities associated with dementia. Therefore, if a client shows improvement in short-term memory, it suggests that the medication is having a positive effect in preserving cognitive function.
Choice D reason
Enhanced mood does not show the medicine is effective: Donepezil is primarily aimed at improving cognitive function and memory, and its effects on mood may be limited. While some clients may experience mood improvements due to reduced frustration or confusion from memory loss, it is not the primary indicator of the medication's effectiveness.
Correct Answer is C
Explanation
A. Oliguria. This is incorrect because oliguria, or decreased urine output, is a sign of fluid volume deficit, not fluid volume overload.
B. Bradycardia. This is incorrect because bradycardia, or slow heart rate, is not a typical sign of fluid volume overload, unless the client has a cardiac condition that affects the heart's response to fluid overload.
C. Dyspnea. This is correct because dyspnea, or difficulty breathing, is a common sign of fluid volume overload, as excess fluid accumulates in the lungs and impairs gas exchange.
D. Poor skin turgor. This is incorrect because poor skin turgor, or decreased elasticity of the skin, is a sign of dehydration, not fluid volume overload.
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