There is 10-15 pus cells in R/E of urine. What it indicates?

Appeared in: NCL (MP) Nursing Officer - 2020

Explanation

A count of 10-15 pus cells (WBCs) per high-power field in urine is defined as pyuria.
Pyuria is a classic sign of inflammation within the urinary tract.
The most common cause of pyuria is a bacterial urinary tract infection (UTI).
The normal value for WBCs in urine is typically less than 5 per high-power field.

Option A: A count of 10-15 pus cells/HPF is significantly above the normal threshold of 0-4 cells/HPF.
Option B: While pyuria can be a sign of kidney disease like pyelonephritis, it is more broadly and commonly indicative of a UTI, which may or may not involve the kidneys. UTI is the more direct and frequent diagnosis.
Option D: This is incorrect because a finding of 10-15 pus cells is a clinically significant indicator of an underlying condition, primarily infection.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Interpretation of pus cells (pyuria) in urine analysis as background academic context rather than a clinical decision trigger.
Nurses are often responsible for collecting urine samples and interpreting preliminary results. Recognizing pyuria as a sign of UTI is crucial for timely reporting and intervention.
Proper patient education on collecting a clean-catch midstream urine sample is a key nursing role to prevent contamination and ensure accurate results.
A finding of pyuria should prompt the nurse to assess the patient for clinical signs of a UTI, such as dysuria (painful urination), frequency, urgency, and suprapubic pain.

How to Approach the Question

First, identify the key information in the question: '10-15 pus cells in R/E of urine'.
Recall the normal range for pus cells (WBCs) in a routine urine examination, which is typically 0-4 or 0-5 per high-power field (HPF).
Compare the given value (10-15) with the normal range. Recognize that this value is elevated.
Recall the clinical term for elevated pus cells in urine, which is 'pyuria'.
Remember the most common cause associated with pyuria.
Evaluate the options provided. 'Urinary tract infection' is the most direct and common cause of pyuria. Select this as the correct answer.

Concept Tested & Keywords

Concept Tested: Interpretation of pus cells (pyuria) in urine analysis.
Stem keywords: pus cells, R/E of urine, 10-15
Lead-in keywords: indicates
Clinical cues: A lab value of 10-15 pus cells is outside the normal range, pointing towards pathology.

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E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 245-247

E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 507-509

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