Oxygen-16 is abundant in the environment and has 8 protons and 8 neutrons. Oxygen-18 has two extra neutrons. These two forms of oxygen are:

The movement of substances from regions where their concentration is higher to regions where their concentration is lower is called:

A PTA is preparing to perform electrical stimulation on a patient for wound healing. The patient exhibits an inflamed sacral pressure ulcer. Which form of electrical stimulation would be best to assist in wound healing? (Slide 65)

The PT’s POC for a patient with acute low back pain identifies the use of interferential current. Where should the PTA place the electrodes? (Slide 51)

Which type of current is used for iontophoresis? (Slide 77)

What electrical stimulation is considered an alternating current? (Slide 4)

Which technique for the application of electrodes involves two electrodes of different sizes with the smaller in size, placed over the target area called the active electrode? (Slide 92)

A PTA is preparing to perform electrical stimulation on a patient for pain management. The patient exhibits an inflamed sacral pressure ulcer. Which of the following parameter is appropriate for the PTA to utilize? (Slide 66)

The time it takes the current to increase from zero to its peak intensity is known as: (Slide 30)

TENS unit works based off of the: (Slide 53)