A) The most basic premise behind the application of IFC is that two channels of electrodes must be used and they must be crossed.
B) The most basic premise behind the application of ES is that two channels of electrodes must be used and they must be crossed.
C) When applying IFC, four electrodes must be used and they must be crossed over the treatment area.
D) When applying IFC, four channels of electrodes must be used and they must be in the treatment area.
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A
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A) IFC is a new form of electrotherapy that is seldom used because there is very little documented evidence regarding any potential benefit to the patient.
B) IFC is a form of electrotherapy that is frequently used despite the fact that there is very little documented evidence regarding potential benefits to the patient.
C) IFC is a form of electrotherapy that is frequently used despite the fact that there is a wealth of documented evidence regarding potential negative effects to the patient.
D) IFC is an established form of electrotherapy that is seldom used because there is a significant amount of documented evidence regarding potential benefits to the patient.
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A) Pulse duration; it relates to the duration of the beat.
B) Carrier frequency; it relates to the frequency of the carrier.
C) Rate; it relates to the overall frequency or interruptions in the carrier.
D) Intensity; it refers to the strength of the current.
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A) IFC requires the use of two separate channels that are crossed over the treatment area. "When in doubt," refers to the electrode placement sites.
B) IFC is a doubtful form of treatment.
C) Applying electrodes in a crossed pattern over the treatment area with IFC often yields pain relief when acupuncture points are used as sites.
D) As long as electrodes are crossed with ES, there is no doubt that the result will be pain relief.
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A) Yes; you will still have two channels and four electrodes.
B) Yes; TENS can be used for pain management.
C) No; TENS devices cannot be set to have a dynamic effect like an IFC.
D) No; TENS units have only one generator and not two.
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A) Pre-modulated current is how clinicians describe the current that comes from each of the channels on a TENS unit, and it is correct.
B) IFC requires a carrier frequency in the megahertz range that is pulse burst, and pre-modulated IFC uses two channels from two separate generators.
C) Pre-modulated current uses only one generator and a carrier frequency in the kilohertz range that is pulse burst, and IFC uses two channels from two separate generators.
D) IFC requires pre-modulated current that uses two generators, a carrier frequency in hertz that is pulse burst, and uses two channels from two separate generators.
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A) Yes; you must set it up so that the third line stays off the muscle(s) that you want to fatigue and the beat frequency is above 50, which is a frequency that will rapidly fatigue muscle.
B) Yes; your setup must include a dynamic mode that moves off and on the muscle(s) that you want to fatigue and the beat frequency is above 50, which is a frequency that will rapidly fatigue muscle.
C) No; IFC cannot be used to fatigue muscles.
D) No; the pulse duration with IFC is too short to fatigue muscles.
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B
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A) Edema formation
B) Muscle contraction
C) Pain reduction
D) Paresthesia
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D
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A) The third line is a created field within the body, which can be potentially stronger than either of the individual intensities of the channels.
B) The third line is a created field within the patient, which can be either stationary or made to move to decrease polarization of the sensation.
C) There is no such thing as a "third line" with IFC; this is a marketing term.
D) The third line is another name for pre-modulated IFC, meaning that only one channel is necessary to elicit the desired response.
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A) IFC units have a setting labeled sweep or scan.
B) Sweep moves the third line of current through the treatment area without having to adjust intensities.
C) After about 5 minutes, the intensity of the IFC will increase automatically, which decreases the likelihood that the patient will stop feeling it.
D) There is no such control on an IFC device. The clinician must monitor the device just like any other form of ES to ensure that the sensation perpetuates throughout the treatment area.
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