Pediatric NCLEX Questions Related

Review Pediatric NCLEX Questions related questions and content

The nurse is developing a plan of care for marrow suppression, the major dose-limiting adverse reaction to floxuridine (FUDR). How long after drug administration does bone marrow suppression become noticeable?

  • A. 24 hours
  • B. 7 to 14 days
  • C. 2 to 4 days
  • D. 21 to 28 days
Correct Answer: C

Rationale: Marrow suppression is the major dose-limiting adverse reaction to floxuridine (FUDR). It typically becomes noticeable 2 to 4 days after drug administration. Floxuridine acts by interfering with DNA replication and is most toxic to rapidly dividing cells, such as those in the bone marrow. As a result, bone marrow suppression leading to decreased production of blood cells can occur relatively quickly after the administration of floxuridine. Monitoring for bone marrow suppression is essential in patients receiving this medication to ensure timely intervention and prevention of complications such as anemia, thrombocytopenia, and leukopenia.