Physical Therapy Assistant Practice Exam

Which device uses a turbine to produce agitation and creates movement of water for softening necrotic tissue?

1. Ultrasound machine

2. Whirlpool

3. Electric stimulation unit

4. Cold pack unit

The correct answer is: Whirlpool

The whirlpool is the device that utilizes a turbine to produce agitation in the water, leading to the movement necessary for effective therapeutic applications. This agitation helps to soften and debride necrotic tissue, which can be particularly beneficial in treating wounds. The swirling action of the water aids in enhancing circulation, reducing edema, and providing a soothing environment for the tissues. In therapeutic settings, the temperature and movement of the water can play critical roles in promoting healing. The combination of warmth and the mechanical action generated by the turbine creates a conducive environment for softening debris and facilitating tissue healing. This makes whirlpool treatments especially useful in various rehabilitation scenarios, such as for burns or chronic non-healing wounds. Other devices mentioned do not serve this specific function. While ultrasound machines are used for therapeutic heating and tissue repair through sound waves, they do not create agitation through water movement. Electric stimulation units focus on muscle contraction and pain relief through electrical impulses rather than fluid dynamics. Cold pack units provide localized cooling to reduce inflammation but do not involve agitation or water management. Thus, the whirlpool stands out uniquely for the purpose described in the question.