A client received high-dose methotrexate 24 hours ago. The n… | MyMerci
Medical EmergenciesPA
Question
A client received high-dose methotrexate 24 hours ago. The nurse notes urine pH 6.5 and methotrexate level still elevated. Which is the priority nursing intervention?
1Stop the leucovorin rescue and immediately administer activated charcoal to enhance methotrexate elimination.
2Decrease the IV hydration rate to avoid fluid volume excess because the methotrexate level is still elevated.
3Prepare the client for urgent hemodialysis to rapidly decrease the elevated methotrexate level and prevent toxicity.
4Continue scheduled leucovorin rescue and ensure aggressive IV hydration with sodium bicarbonate to maintain urine pH >7.0✓ Correct answer
Explanation
Correct (2): High-dose MTX requires leucovorin (folinic acid) rescue to prevent severe myelosuppression and mucositis. Urine alkalinization (pH >7) with IV bicarbonate increases MTX solubility and prevents tubular precipitation/AKI. Continue until MTX level