Your labs are potassium 6.4, sodium 138, and serum calcium level of 9. Which order from the healthcare provider would the nurse anticipate?
Fluid restriction
Neomycin
Kayexalate
Sodium chloride infusion and furosemide
The Correct Answer is C
Choice A reason: Fluid restriction doesn’t address hyperkalemia (6.4 mEq/L); it may concentrate potassium further, worsening the condition, as it’s unrelated to potassium excretion or shifting in this scenario.
Choice B reason: Neomycin, an antibiotic, reduces gut bacteria but isn’t used for hyperkalemia. It has no direct effect on potassium levels, making it irrelevant for this lab finding.
Choice C reason: Kayexalate binds potassium in the gut, facilitating its fecal excretion, effectively lowering serum levels (6.4 mEq/L) in hyperkalemia, aligning with urgent correction needs here.
Choice D reason: Sodium chloride and furosemide dilute and excrete potassium via urine, but Kayexalate is preferred for rapid gut-based removal when potassium is critically high (6.4 mEq/L).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Total output is hemodialysis (4000 mL) + Jackson Pratt (20 mL) + urine (100 mL) + nasogastric (325 mL) = 4445 mL, accurately summing all fluid losses recorded.
Choice B reason: 4000 mL only accounts for hemodialysis, ignoring Jackson Pratt (20 mL), urine (100 mL), and nasogastric (325 mL), underestimating total output significantly.
Choice C reason: 4250 mL likely omits nasogastric (325 mL) or miscalculates, as 4000 + 20 + 100 + 325 = 4445 mL, missing part of the recorded fluid loss.
Choice D reason: 4500 mL overestimates; 4000 + 20 + 100 + 325 = 4445 mL, suggesting an error in adding an extra 55 mL not documented in outputs.
Correct Answer is A
Explanation
Choice A reason: Gamma globulins (IVIG) provide antibodies to fight infections and stabilize platelet and RBC counts in lupus by modulating immunity, addressing cytopenias effectively.
Choice B reason: Prednisone suppresses immunity, reducing lupus inflammation but lowering infection resistance and not directly boosting platelets or RBCs, risking suppression.
Choice C reason: Methotrexate inhibits folate, suppressing lupus immune activity, but it can reduce blood cell production, not increase platelets or RBCs, worsening counts.
Choice D reason: Hydroxychloroquine prevents lupus flares by stabilizing lysosomes, not boosting blood counts or immunity, focusing on symptom control, not cytopenias.
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