The most likely systemic adverse effects of combination chemotherapy for the treatment of metastatic carcinoma include?

Appeared in: AIIMS Bhatinda NO - 2019

Explanation

Chemotherapy agents are designed to kill rapidly dividing cells, which is a hallmark of cancer.
However, these drugs also affect healthy cells that divide quickly, most notably the hematopoietic stem cells in the bone marrow.
This leads to bone marrow suppression (myelosuppression), which is a very common and predictable side effect.
Leukopenia, a decrease in the number of white blood cells (leukocytes), is a direct and frequent result of myelosuppression, making it the most likely adverse effect among the choices.

Option A: Ascites (fluid in the abdomen) is typically a complication of the cancer itself, such as liver metastases or peritoneal carcinomatosis, rather than a direct, common side effect of chemotherapy.
Option B: Nystagmus (involuntary eye movements) is a form of neurotoxicity. While possible with certain chemotherapy agents, it is a relatively rare side effect compared to the near-universal impact on bone marrow.
Option D: Polycythemia is an excess of red blood cells. Chemotherapy causes the opposite effect—anemia (a deficiency of red blood cells)—due to the suppression of red blood cell production in the bone marrow.

Clinical Relevance

Nursing practice connection: Knowing Systemic adverse effects of chemotherapy helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
A key nursing responsibility is monitoring for signs of infection in patients with leukopenia, as their immune system is compromised. Even a low-grade fever can signify a life-threatening infection.
Nurses implement 'neutropenic precautions' for patients with severely low white blood cell counts. This includes strict hand hygiene, wearing a mask, avoiding fresh flowers or raw foods, and placing the patient in a private room to minimize exposure to pathogens.
Patient education is critical. Nurses teach patients and families to recognize early signs of infection (fever, chills, sore throat) and to seek immediate medical attention.

How to Approach the Question

First, identify the core subject of the question: 'systemic adverse effects' of 'chemotherapy'.
Recall the fundamental mechanism of chemotherapy: it targets rapidly dividing cells.
Consider which normal body cells also divide rapidly. Key examples include cells in the bone marrow, hair follicles, and the gastrointestinal lining.
Evaluate each option based on this mechanism:
Ascites: Is this a direct result of killing rapidly dividing cells? No, it's more related to organ dysfunction or tumor location.
Nystagmus: Is this a common result of killing rapidly dividing cells? No, it's a specific, less common neurotoxicity.

Concept Tested & Keywords

Concept Tested: Systemic adverse effects of chemotherapy
Stem keywords: systemic adverse effects, combination chemotherapy, metastatic carcinoma
Lead-in keywords: most likely

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