Which route is used to administer a chemotherapeutic agent to minimize the associated physical discomforts and risks of infection and infiltration by intravenous method?

1. A

   Central venous route

2. B

   Intraosseous route

3. C

   Trans-patch on skin

4. D

   Intra-atrial route

Appeared in: RRB Nsg. Superintendent - 29 April 2025 (Shift-3rd)

Explanation

• The central venous route is used for administering chemotherapy, especially vesicant (tissue-damaging) agents, to prevent severe tissue injury from extravasation (leakage).
• This route utilizes a Central Venous Access Device (CVAD) placed in a large, high-flow blood vessel, typically the superior vena cava.
• The high blood flow rapidly dilutes the chemotherapy drug, minimizing irritation to the vein's inner wall (intima) and reducing the risk of phlebitis and thrombosis.
• Using a long-term CVAD (like a PICC line or implanted port) avoids the pain, anxiety, and vessel trauma associated with repeated peripheral venipunctures for frequent treatments.

Why Other Options Were Wrong

• Option B: The intraosseous route involves infusion directly into the bone marrow. It is a painful procedure reserved for emergencies (e.g., trauma, cardiac arrest) when traditional IV access is not possible.
• Option C: The transdermal route (via a patch) is not suitable for most chemotherapy drugs. These complex molecules are typically too large to be absorbed effectively through the skin.
• Option D: This is not a standard or recognized route of drug administration. While central venous catheters terminate near the right atrium, the drug is infused into the superior vena cava, not directly into the atrium itself.

Related Visual

• Visual 1: Diagram: Illustration of various Central Venous Access Devices (CVADs), including a PICC line, a tunneled catheter, and an implanted port, showing their placement in the body and the catheter tip terminating in the superior vena cava.

Clinical Relevance

• Nursing practice connection: Knowing Routes of Chemotherapy Administration helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
• Nurses play a critical role in the care and maintenance of CVADs, including performing sterile dressing changes, flushing the line to maintain patency, and monitoring the site for signs of infection (redness, swelling, pain, drainage).
• Patient education is a key nursing responsibility. Patients and families must be taught how to care for the access device at home and to recognize and report signs of complications like infection, catheter damage, or thrombosis.
• What if? If a patient were receiving a single dose of a non-vesicant chemotherapy agent, a short-term peripheral IV catheter could be an appropriate and less invasive choice, avoiding the risks and costs associated with a CVAD.

How to Approach the Question

• First, identify the key requirements in the question: administering chemotherapy while minimizing discomfort, infection, and infiltration.
• Analyze the term 'infiltration'. This refers to the leakage of IV fluid/medication into the surrounding tissue, which is particularly dangerous with chemotherapy (extravasation). This points to a need for a very secure and safe venous access.
• Consider the term 'minimize discomfort'. This suggests a need to avoid repeated painful procedures, which is common with long-term treatment like chemotherapy.
• Evaluate each option based on these requirements. The central venous route places the drug into a large, high-flow vessel, directly addressing the risk of infiltration. Long-term devices used for this route eliminate repeated needle sticks.
• Rule out the other options: Intraosseous is for emergencies, transdermal is not suitable for chemo drugs, and intra-atrial is an incorrect term for this procedure.

Concept Tested & Keywords

• Concept Tested: Routes of Chemotherapy Administration
• Stem keywords: chemotherapeutic agent, minimize physical discomforts, risks of infection, infiltration, intravenous method
• Lead-in keywords: Which route

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