You are assessing tactile fremitus in a patient with emphysema. Which of the following is not a TRUE statement about tactile fremitus?
1. It's a tactile sensation that results from the transmission of sound waves through the lung parenchyma to the chest wall
2. It is assessed by placing the palms or fingers of both hands firmly on the patient's shoulder while the patient speaks or breathes
3. The intensity of tactile fremitus depends on factors such as lung tissue density, the presence of air or fluid in the lung
4. Increased tactile fremitus may indicate conditions such as consolidation of lung tissue
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