The nurse receives a health care provider's prescription to change a patient's IV from D5. half-normal saline with 40 mEq KCl/L to DSNS with 20 mEq KCl/L. Which set of serum laboratory values supports the rationale for this IV prescription change?
Sodium level of 136 mEq/L, potassium level of 4.5 mEq/L.
Sodium level of 145 mEq/L, potassium level of 4.8 mEq/L.
Sodium level of 135 mEq/L, potassium level of 3.6 mEq/L.
Sodium level of 144 mEq/L, potassium level of 3.7 mEq/L.
The Correct Answer is C
Choice A rationale:
The sodium level is within the normal range, but the potassium level is slightly elevated. This does not support the rationale for changing the IV prescription to a lower potassium concentration.
Choice B rationale:
The sodium level is slightly elevated, and the potassium level is within the normal range. This does not support the rationale for changing the IV prescription to a lower potassium concentration.
Choice C rationale:
Sodium level of 135 mEq/L, potassium level of 3.6 mEq/L is the correct answer. In this option, both sodium and potassium levels are within normal ranges. Changing the IV prescription to DSNS with 20 mEq KCl/L ensures that the patient receives adequate hydration (from the dextrose and normal saline) without causing hyperkalemia.
Choice D rationale:
The sodium level is slightly elevated, and the potassium level is within the normal range. This does not support the rationale for changing the IV prescription to a lower potassium concentration.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is choice c. “I will take my iron supplement along with meals.”
Choice A rationale:
Taking iron supplements with a straw is recommended to prevent staining of the teeth, which is a common side effect of liquid iron supplements.
Choice B rationale:
Taking iron supplements at bedtime can be beneficial for some patients, especially if they experience gastrointestinal discomfort when taking iron during the day.
Choice C rationale:
Taking iron supplements with meals can decrease the absorption of iron. Iron is best absorbed on an empty stomach, although it can be taken with food if gastrointestinal upset occurs.
Choice D rationale:
Taking iron supplements with orange juice is recommended because vitamin C enhances the absorption of iron.
Correct Answer is ["B","D"]
Explanation
Choice B rationale:
Conjunctival pallor is a common physical finding in patients with low hemoglobin levels (anemia), leading to paleness in mucous membranes such as the conjunctiva.
Choice C rationale:
Sternal tenderness is not a typical finding associated with low hemoglobin levels and is not directly related to anemia.
Choice D rationale:
A heart rate of 104 beats/min can be a compensatory response to anemia, as explained in .
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