Which of the following measure showing in white blood count is indicating the patient is immunosuppressive and patient need to isolation?

Appeared in: NIMHANS Nursing Officer - 2019

Explanation

A normal White Blood Cell (WBC) count ranges from 4,000 to 11,000 cells/mm³.
A WBC count of 2,000 cells/mm³ is significantly below this normal range, a condition called leukopenia.
Leukopenia indicates a severely weakened immune system (immunosuppression), which dramatically increases the patient's risk of acquiring infections.
Patients with such low WBC counts require protective (reverse) isolation to shield them from pathogens in the environment.

Option A: A WBC count of 8,500 cells/mm³ falls squarely within the normal physiological range (4,000-11,000 cells/mm³), indicating a healthy immune status, not immunosuppression.
Option B: A WBC count of 5,600 cells/mm³ is well within the normal range (4,000-11,000 cells/mm³). It does not suggest a compromised immune system.
Option D: A WBC count of 11,000 cells/mm³ is at the upper limit of the normal range. It does not indicate immunosuppression; rather, it may suggest the beginning of leukocytosis, which is an increase in WBCs, often in response to an infection or inflammation.

Clinical Relevance

Nursing practice connection: Use the key finding related to Interpretation of White Blood Cell (WBC) count and its clinical implications for immunosuppression to guide bedside assessment, documentation, and the next nursing action.
Recognizing a critically low WBC count is a vital nursing skill. It is a major red flag for severe infection risk, requiring immediate implementation of neutropenic precautions to ensure patient safety.
Nurses are responsible for educating the patient and their family about the reasons for isolation and the specific precautions needed to prevent infection.
What if the Absolute Neutrophil Count (ANC) was provided instead? The ANC is a more specific indicator of infection risk. An ANC below 500 cells/mm³ is considered severe neutropenia and is the definitive trigger for initiating strict protective isolation, even if the total WBC seems less alarming.

How to Approach the Question

First, identify the key terms in the question: 'white blood count', 'immunosuppressive', and 'isolation'. This tells you the question is about a lab value that indicates a weak immune system requiring special precautions.
Recall the normal range for a total White Blood Cell (WBC) count, which is approximately 4,000 to 11,000 cells/mm³.
Analyze each option by comparing it to the normal range.
Option A (8500) and B (5600) are within the normal range.
Option D (11000) is at the very top of the normal range.
Option C (2000) is significantly below the normal range.

Concept Tested & Keywords

Concept Tested: Interpretation of White Blood Cell (WBC) count and its clinical implications for immunosuppression.
Stem keywords: white blood count, immunosuppressive, isolation
Lead-in keywords: Which of the following

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E6 Physiology Essentials Sembulingam 10e Part 1 p. 111-113

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1315-1317

E6 Nursing Brunner Adult Health 3SA Vol 1 Part 3 p. 114-116

Practise the full NIMHANS Nursing Officer - 2019

Attempt every question from this paper in a timed mock, then review the full solution for each one.