What is another common name for White Blood Cells (WBCs)?

Appeared in: AIIMS CRE, SNO-2024

Explanation

White Blood Cells (WBCs), also known as leukocytes, are distinguished from other blood cells by the presence of a true nucleus.
This nucleus is essential for their complex functions in the body's immune system, such as fighting infection.
In contrast, mature red blood cells (erythrocytes) and platelets (thrombocytes) are non-nucleated.

Option A: This term describes mature red blood cells (erythrocytes) and platelets, which lack a nucleus.
Option C: This is the medical term for platelets, which are cell fragments involved in blood clotting.
Option D: This is the medical term for red blood cells, which are responsible for oxygen transport.

Visual 1: Diagram - A comparative illustration showing a nucleated White Blood Cell alongside a non-nucleated Red Blood Cell and a platelet fragment. This helps visually reinforce the key structural difference.

Clinical Relevance

Nursing practice connection: Knowing Characteristics of Blood Cells helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Assessing the WBC count is fundamental in diagnosing infections (leukocytosis) or immune deficiencies (leukopenia).
A differential count, which identifies the proportions of different types of WBCs (neutrophils, lymphocytes, etc.), provides deeper insight into the specific type of infection or inflammation.
What if? If a patient's lab report shows a high neutrophil count (neutrophilia), a nurse should suspect an acute bacterial infection and monitor for signs of sepsis.

How to Approach the Question

First, identify the core subject of the question: 'White Blood Cells (WBCs)'.
Recall the fundamental characteristics of WBCs. The most defining structural feature compared to other blood cells is the presence of a nucleus.
Evaluate each option. 'Non-nucleated cells' is the opposite of a WBC's characteristic.
'Thrombocytes' and 'Erythrocytes' are names for different types of blood cells (platelets and red blood cells, respectively).
Conclude that 'Nucleated cells' is the only option that correctly describes a fundamental feature of all WBCs.

Concept Tested & Keywords

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Practise the full AIIMS CRE, SNO-2024

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