A pediatric patient is admitted in pediatric unit. Which parameter indicates that the child would require isolation or a separate room?

Appeared in: NORCET 5 Prelims - Sept 2023 (Shift-1)

Explanation

A White Blood Cell (WBC) count of 18,000 cells/mm³ is significantly elevated (leukocytosis), as the normal range for children is approximately 4,000 to 11,000 cells/mm³.
Leukocytosis is a primary indicator that the body is fighting an infection.
Healthcare-associated infections (HAIs) are a significant risk in hospitals. To prevent the potential spread of a contagious disease to other vulnerable patients in the pediatric unit, isolation precautions are necessary.
The main goal of isolation is to contain the infectious agent and break the chain of transmission.

Option A: A hemoglobin (Hb) level of 7 gm/dL indicates anemia. Anemia is a condition related to low red blood cells or hemoglobin and is not an infectious process that requires isolation.
Option C: A platelet count of 3,00,000 cells/mm³ is within the normal pediatric range (150,000-400,000 cells/mm³). It does not suggest an infection or any condition requiring isolation.
Option D: A Red Blood Cell (RBC) count of 4 million/mm³ is within the normal range for a child (approx. 4.0-5.5 million/mm³). This finding does not indicate an infection.

Visual 1: Infographic: A chart showing normal vs. abnormal pediatric Complete Blood Count (CBC) values (WBC, RBC, Hb, Platelets) and their clinical implications, such as Infection, Anemia, and Bleeding Risk.
Visual 2: Flowchart: A decision-making tree for nurses showing the steps from reviewing an abnormal lab result (like high WBC) to implementing the correct type of isolation precautions.

Clinical Relevance

Nursing practice connection: Use the key finding related to Indications for isolation precautions based on pediatric laboratory values to guide bedside assessment, documentation, and the next nursing action.
Nurses must promptly recognize lab values indicating infection to implement transmission-based precautions, which is a critical step in preventing nosocomial (hospital-acquired) infections.
A key nursing responsibility is to correlate lab findings with the patient's clinical presentation (e.g., fever, cough, rash) to determine the appropriate type of isolation (Contact, Droplet, or Airborne).
What if? If the WBC count was very low, for example, 1,500 cells/mm³ (neutropenia), the child would also require a separate room. However, this would be for protective (reverse) isolation to shield the immunocompromised patient from acquiring infections from others.

How to Approach the Question

First, identify the core question: which lab value signals a need for isolation?
Recall that isolation precautions are primarily used to prevent the spread of infectious diseases.
Analyze each lab value in the options against the normal pediatric ranges.
Option A (Hb 7 gm/dl) is low, indicating anemia, which is not contagious.
Option B (WBC 18,000/mm³) is high, indicating leukocytosis, a classic sign of infection.
Options C and D (Platelets and RBCs) are within normal limits.

Concept Tested & Keywords

Concept Tested: Indications for isolation precautions based on pediatric laboratory values.
Stem keywords: pediatric patient, pediatric unit, isolation, separate room, parameter
Lead-in keywords: indicates
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.
Negative lead-in flag: false

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Practise the full NORCET 5 Prelims - Sept 2023 (Shift-1)

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