Tactile fremitus is normally found over the mainstem bronchi near the clavicles in the front or between the scapulae in the back. As you move your hands downward and outward, fremitus should decrease. Decreased fremitus in areas where fremitus is normally expected indicates obstruction, pnemothorax, or emphysema.
What does tactile fremitus indicate?
An increase in tactile fremitus indicates denser or inflamed lung tissue, which can be caused by diseases such as pneumonia. A decrease suggests air or fluid in the pleural spaces or a decrease in lung tissue density, which can be caused by diseases such as chronic obstructive pulmonary disease or asthma.
What is a normal finding and abnormal finding of tactile fremitus?
A normal evaluation occurs when equal and moderate vibrations are noticed during speech. Fremitus is abnormal when it is increased or decreased. Because sound is transmitted more strongly through non–air-filled lung, increased fremitus suggests a loss or decrease in ventilation in the underlying lung.