Tumor Lysis Syndrome and Oncologic Emergencies · NCLEX Exam

When TLS occurs before chemotherapy in patients with high tumor burden, what is this scenario called?

  1. Spontaneous tumor lysis syndrome
  2. Delayed tumor lysis syndrome
  3. Secondary chemotherapy syndrome
  4. Tumor rebound syndrome
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Correct answer: Spontaneous tumor lysis syndrome

Spontaneous TLS can occur prior to therapy in cases of high tumor burden, known as spontaneous tumor lysis syndrome.

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