What is a life-threatening complication of chemotherapy?

AIIMS Rishikesh NO - 2019

Medical & Surgical Nursing

Easy

Appeared in: AIIMS Rishikesh NO - 2019

Explanation

Bone marrow depression (myelosuppression) is the most critical life-threatening complication of chemotherapy among the choices.
It involves the suppression of the bone marrow's ability to produce blood cells, leading to pancytopenia (a deficiency of red cells, white cells, and platelets).
This results in a triad of dangerous conditions: anemia (low RBCs), leukopenia/neutropenia (low WBCs), and thrombocytopenia (low platelets).
The resulting neutropenia creates a high risk for severe infections, and thrombocytopenia creates a high risk for serious bleeding, both of which can be fatal.

Option A: Alopecia (hair loss) is a common and distressing side effect of chemotherapy due to the drugs' effect on rapidly dividing hair follicle cells, but it is not physically life-threatening.
Option B: Vomiting is a common side effect, but it is typically manageable with antiemetic medications. While severe, prolonged vomiting can lead to dehydration and electrolyte imbalance, it is not considered the most direct or severe life-threatening complication compared to myelosuppression.
Option D: Being prone to infection is a direct and very serious consequence of bone marrow depression, specifically the reduction of white blood cells (neutropenia). However, it is a symptom or result of the underlying complication, not the primary complication itself. Bone marrow depression is the root cause.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Complications of Chemotherapy as background academic context rather than a clinical decision trigger.
Nurses must meticulously monitor the complete blood count (CBC) for patients undergoing chemotherapy to detect bone marrow suppression early.
A critical nursing role is educating patients and their families to recognize and immediately report signs of infection (e.g., fever, chills, sore throat), bleeding (e.g., unusual bruising, petechiae, blood in stool), and anemia (e.g., extreme fatigue, shortness of breath).
What if? If a patient on chemotherapy develops a fever, even a low-grade one, it is treated as a medical emergency (neutropenic fever) until proven otherwise. The nurse's priority is to initiate sepsis protocols, obtain blood cultures, and facilitate the administration of broad-spectrum antibiotics immediately, as overwhelming infection can be rapidly fatal.

How to Approach the Question

First, identify the key concept in the question: a 'life-threatening' complication. This requires you to differentiate between severe side effects and those that pose a direct risk of death.
Evaluate each option based on its potential for mortality.
Consider Alopecia (hair loss) and Vomiting. While unpleasant and sometimes serious, they are not typically the primary cause of death from chemotherapy.
Compare 'Bone marrow depression' and 'Prone to infection'. Recognize the cause-and-effect relationship here.
Being prone to infection is a direct result of bone marrow depression (specifically, the drop in white blood cells).
Therefore, 'Bone marrow depression' is the more fundamental and comprehensive answer, as it is the underlying cause of multiple life-threatening issues, including infection risk, bleeding risk (from low platelets), and severe anemia (from low red blood cells).

Concept Tested & Keywords

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