A patient on an oncology unit has been receiving ifosfamide (Ifex) for a few days. Prior to administration of the next dose, the nurse reviews the patient's laboratory test results. Which finding would cause the nurse to hold the dose?
a. Low levels of ketones in the urine
b. Hematuria
c. Blurred vision
d. Low Hct and Hb
ANS: B
The nurse should hold the dose for hematuria, because this may indicate hemorrhagic cystitis.
Ketones may reveal some other problem, but they are not associated with ifosfamide.
Blurred vision is a symptom of toxicity; however, the question specifically asks about a laboratory result.
Low Hct and Hb are expected for a patient undergoing chemotherapy.
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