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A middle-aged adult patient previously diagnosed with bronchi ectasis is visiting the nurse practitioner due to an increase in speed of production. The NP contemplates a need to assess and quantify these patient sputum production, Which of the following methods is frequently employed for this purpose and routine clinical practice?
A. Peak expiratory flow rate (PEFR)
B. Forced vital capacity(PVC)
C. 5putum color: assessment
D. Urilize a sputum cup