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Grading System for Sputum Specimens

Purpose:

To evaluate the quality of a sputum specimen and to identify those contaminated with oral flora using the score of Murray and Washington.

Specialty:

Infectious Diseases
Clinical Laboratory
Pulmonology & Critical Care

Objective:

other testing

ICD-10:

R09.3

Description:

The Murray and Washington grading system for sputum smears uses leukocytes and oral epithelial cells to help separate suitable from suboptimal specimens.

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