Pneumonia physical examination

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Priyamvada Singh, M.D. [2]

Overview

Physical examinationmay reveal fever or sometimes low body temperature, an increased respiratory rate, low blood pressure, a fast heart rate, or a low oxygen saturation, which is the amount of oxygen in the blood as indicated by either pulse oximetry or blood gas analysis. People who are struggling to breathe, who are confused, or who have cyanosis (blue-tinged skin) require immediate attention. Auscultation findings include lack of normal breath sounds, the presence of crackling sounds (rales), or increased loudness of whispered speech (whispered pectoriloquy) with areas of the lung that are stiff and full of fluid, called consolidation. The physical examination, though not very sensitive and specific in diagnosis of community acquired pneumonia, helps in determining the severity of illness and ruling out other differentials. Vital signs are useful in determining the severity of illness and have predictive values. However, a high degree of suspicion should be kept in elderly as the presentation could be subtle in them.

Physical Examination

Vital Signs

• Decreased oxygen saturation
• Fever
• Hypotension < 90 mm Hg
• Tachycardia > 125 beats/min
• Tachypnea

Lungs

Palpation

• Increased tactile fremitus

Percussion

• Dullness on percussion

Auscultation

• Decreased breath sounds
• Bronchial breath sounds
• Rhonchi
• Crackles, Rales
• Increased volume of whispered (vocal fremitus).