A nurse is caring for a client who is receiving IV fluids to correct dehydration. Which of the following laboratory values should indicate to the nurse that the client is effectively responding to treatment?
Urine specific gravity 1.020.
Potassium 5.2 mEq/L.
Hct 6296.
Sodium 165 mEq/L.
The Correct Answer is A
Urine specific gravity 1.020.
Choice A rationale:
Urine specific gravity is a measure of urine concentration, indicating the ability of the kidneys to concentrate or dilute urine. A specific gravity of 1.020 falls within the normal range (typically 1.010 to 1.030). An appropriate specific gravity indicates that the client's kidneys are responding well to the IV fluids, maintaining adequate urine output and concentration.
Choice B rationale:
Potassium level of 5.2 mEq/L is above the normal range of 3.5 to 5 mEq/L. However, this value does not specifically indicate whether the client is responding effectively to the IV fluids for dehydration.
Choice C rationale:
Hct (Hematocrit) of 6296 is not a valid measurement; it appears to be a typographical error or an incomplete value. Therefore, it cannot be used to assess the client's response to treatment.
Choice D rationale:
Sodium level of 165 mEq/L is elevated beyond the normal range of 136 to 145 mEq/L. However, this value does not provide information about the client's response to IV fluids for dehydration.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale: Patients with bulimia are at increased risk for developing metabolic alkalosis due to recurrent vomiting, which leads to loss of hydrochloric acid from the stomach and results in an elevated blood bicarbonate level.
Choice B rationale: Patients with COPD are more likely to develop respiratory acidosis due to retention of carbon dioxide, not metabolic alkalosis.
Choice C rationale: Patients with venous stasis ulcers do not have a direct association with metabolic alkalosis.
Choice D rationale: Patients on dialysis are more likely to experience metabolic acidosis due to impaired kidney function and inability to excrete acid effectively.
Correct Answer is D
Explanation
The correct answer is choice D: Reduction of T-wave amplitude.
Choice A rationale:
The amplitude of the QRS complex is not directly affected by changes in serum potassium levels. It represents ventricular depolarization, and its restoration would not be an expected outcome of polystyrene sulfonate treatment
Choice B rationale:
Shortening of the P-wave duration is not an expected change with polystyrene sulfonate treatment. The P-wave represents atrial depolarization, which is not significantly impacted by the administration of this medication
Choice C rationale:
Widening of the QRS complex is associated with high serum potassium levels. The goal of polystyrene sulfonate treatment is to lower potassium levels and, thus, return the QRS complex to its normal width
Choice D rationale:
Polystyrene sulfonate aims to reduce serum potassium levels. When effective, this should result in a reduction of T-wave amplitude, which is a common ECG change seen with hyperkalemia
In conclusion, choice D is the correct answer, as a reduction in T-wave amplitude would be the expected change on the client's ECG if polystyrene sulfonate effectively lowers their serum potassium level.
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