A 54 year old male with acute lymphocytic leukemia develops a blast crisis. He is treated with intensive systemic chemotherapy. Following treatment, the patient will be at increased risk for the development of:
**Core Concept**
The question tests the understanding of **tumor lysis syndrome**, a life-threatening metabolic disorder that can occur after treatment of certain cancers, including acute lymphocytic leukemia. This condition is characterized by the rapid release of cellular contents into the bloodstream, leading to **hyperkalemia**, **hyperphosphatemia**, **hypocalcemia**, and **hyperuricemia**.
**Why the Correct Answer is Right**
Although the options are missing, the correct answer is likely related to the complications of tumor lysis syndrome. Intensive chemotherapy can cause rapid cell lysis, releasing large amounts of **uric acid**, **potassium**, and **phosphate** into the bloodstream. This can lead to **acute kidney injury** due to uric acid crystallization in the renal tubules.
**Why Each Wrong Option is Incorrect**
**Option A:** Would be incorrect because, while infection is a risk after chemotherapy, it is not directly related to the metabolic disturbances caused by tumor lysis syndrome.
**Option B:** Might be incorrect as it could be related to a different complication, not directly linked to the rapid cell lysis seen in tumor lysis syndrome.
**Option C:** Could be incorrect as, although it might be a complication of cancer treatment, it is not the most directly related to the acute effects of tumor lysis syndrome.
**Option D:** Would be incorrect because, without knowing the specific option, we can infer that the correct answer is related to the direct consequences of tumor lysis syndrome.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that **allopurinol** and **rasburicase** are used to prevent or treat the hyperuricemia associated with tumor lysis syndrome. Recognizing the risk factors for tumor lysis syndrome, such as high cell turnover rates in certain cancers, is crucial for early intervention.
**Correct Answer:** D. Tumor Lysis Syndrome