(Comprehensive) Biophysical Agents
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complete and Verified Solutions |Test
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A pulsatile current in which a finite interval of alternating current is delivered at a specified frequency for
a specified length of time is called:
a. train
b. burst
c. modulation
d. ramp - -----ANSWER---->b. burst
All of the following are excitable tissue except:
a. muscle fibers
b. cell membranes
c. bone
d. nerve - -----ANSWER---->c. bone
Which of the following statements is true?
a. tendons are excitable tissue
b. ligaments are excitable tissue
c. depolarization occurs easier under the cathode
d. depolarization occurs easier under the anode - -----ANSWER---->c. depolarization occurs easier under
the cathode
,What is the correct order of tissue excitability from most easily excitable to least easily excitable
according to the strength duration curve?
a. motor > C fibers > A delta > A beta
b. A delta > A beta > C fibers > motor
c. A beta > A delta > motor > C fibers
d. A beta > motor > A delta > C fibers - -----ANSWER---->d. A beta > motor > A delta > C fibers
What is the correct e-stim frequency to elicit a sub-max contraction?
a. 1-10 pps
b. 25-50 pps
c. 75-150 pps
d. 200-400 pps - -----ANSWER---->b. 25-50 pps
Which electrical current is the most common and safest to use?
a. pulsatile current
b. direct current
c. alternating current
d. Iontophoresis - -----ANSWER---->a. pulsatile current
Which of the following lists the correct order of tissue conductivity from best to worst?
a. blood, bone, tendon, nerve, adipose, epidermis, muscle
b. blood, muscle, nerve, adipose, tendon, epidermis, bone
c. nerve, muscle, tendon, adipose, epidermis, blood, bone
d. blood, nerve, muscle, tendon, adipose, epidermis, bone - -----ANSWER---->d. blood, nerve, muscle,
tendon, adipose, epidermis, bone
High volt pulsatile current is a type of waveform that is:
a. symmetrical biphasic
,b. asymmetrical biphasic
c. polyphasic
d. monophasic - -----ANSWER---->d. monophasic
Which of the following consists of a polyphasic, bi-directional pulsatile current?
a. HVPC
b. TENS
c. Russian
d. IFC - -----ANSWER---->c. Russian
Which term aligns most with IFC?
a. beat
b. burst
c. train
d. ramp - -----ANSWER---->a. beat
Which of the following statements regarding electrotherapy is false?
a. The strength duration curve order of nerve excitability from most excitable to least excitable is ABeta >
motor > Adelta > C
b. denervated tissues require greater pulse durations
c. denervated tissues require higher amplitudes
d. muscle fibers are more excitable than peripheral nerves - -----ANSWER---->d. muscle fibers are more
excitable than peripheral nerves
What is the best electrode configuration to use on a patient that has generalized pain down an entire
extremity?
a. unilateral/linear and overlapping with distal points
b. bracketed method
c. unilateral/linear
d. crossed method - -----ANSWER---->a. unilateral/linear and overlapping with distal points
, What is the best electrode configuration to use on a patient that has target tissues of varying levels of
stimulation?
a. unilateral/linear and overlapping with distal points
b. bracketed method
c. unilateral/linear
d. crossed method - -----ANSWER---->b. bracketed method
What is the best electrode configuration to target a patient's low back pain and radiating symptoms in
the posterior thigh?
a. unilateral/linear and overlapping with distal points
b. bracketed method
c. unilateral/linear
d. crossed method - -----ANSWER---->c. unilateral/linear
A continuous repetitive sequence of pulses or cycles is called:
a. burst
b. beat
c. amplitude
d. train - -----ANSWER---->d. train
The percentage of on-time to total-time of a pulsatile current is called:
a. frequency
b. amplitude
c. phase duration
d. duty cycle - -----ANSWER---->d. duty cycle
Which of the following is a contraindication to e-stim?
a. placing electrodes over the anterior thoracic region
Exams Latest |updated 2023 with
complete and Verified Solutions |Test
Bank
A pulsatile current in which a finite interval of alternating current is delivered at a specified frequency for
a specified length of time is called:
a. train
b. burst
c. modulation
d. ramp - -----ANSWER---->b. burst
All of the following are excitable tissue except:
a. muscle fibers
b. cell membranes
c. bone
d. nerve - -----ANSWER---->c. bone
Which of the following statements is true?
a. tendons are excitable tissue
b. ligaments are excitable tissue
c. depolarization occurs easier under the cathode
d. depolarization occurs easier under the anode - -----ANSWER---->c. depolarization occurs easier under
the cathode
,What is the correct order of tissue excitability from most easily excitable to least easily excitable
according to the strength duration curve?
a. motor > C fibers > A delta > A beta
b. A delta > A beta > C fibers > motor
c. A beta > A delta > motor > C fibers
d. A beta > motor > A delta > C fibers - -----ANSWER---->d. A beta > motor > A delta > C fibers
What is the correct e-stim frequency to elicit a sub-max contraction?
a. 1-10 pps
b. 25-50 pps
c. 75-150 pps
d. 200-400 pps - -----ANSWER---->b. 25-50 pps
Which electrical current is the most common and safest to use?
a. pulsatile current
b. direct current
c. alternating current
d. Iontophoresis - -----ANSWER---->a. pulsatile current
Which of the following lists the correct order of tissue conductivity from best to worst?
a. blood, bone, tendon, nerve, adipose, epidermis, muscle
b. blood, muscle, nerve, adipose, tendon, epidermis, bone
c. nerve, muscle, tendon, adipose, epidermis, blood, bone
d. blood, nerve, muscle, tendon, adipose, epidermis, bone - -----ANSWER---->d. blood, nerve, muscle,
tendon, adipose, epidermis, bone
High volt pulsatile current is a type of waveform that is:
a. symmetrical biphasic
,b. asymmetrical biphasic
c. polyphasic
d. monophasic - -----ANSWER---->d. monophasic
Which of the following consists of a polyphasic, bi-directional pulsatile current?
a. HVPC
b. TENS
c. Russian
d. IFC - -----ANSWER---->c. Russian
Which term aligns most with IFC?
a. beat
b. burst
c. train
d. ramp - -----ANSWER---->a. beat
Which of the following statements regarding electrotherapy is false?
a. The strength duration curve order of nerve excitability from most excitable to least excitable is ABeta >
motor > Adelta > C
b. denervated tissues require greater pulse durations
c. denervated tissues require higher amplitudes
d. muscle fibers are more excitable than peripheral nerves - -----ANSWER---->d. muscle fibers are more
excitable than peripheral nerves
What is the best electrode configuration to use on a patient that has generalized pain down an entire
extremity?
a. unilateral/linear and overlapping with distal points
b. bracketed method
c. unilateral/linear
d. crossed method - -----ANSWER---->a. unilateral/linear and overlapping with distal points
, What is the best electrode configuration to use on a patient that has target tissues of varying levels of
stimulation?
a. unilateral/linear and overlapping with distal points
b. bracketed method
c. unilateral/linear
d. crossed method - -----ANSWER---->b. bracketed method
What is the best electrode configuration to target a patient's low back pain and radiating symptoms in
the posterior thigh?
a. unilateral/linear and overlapping with distal points
b. bracketed method
c. unilateral/linear
d. crossed method - -----ANSWER---->c. unilateral/linear
A continuous repetitive sequence of pulses or cycles is called:
a. burst
b. beat
c. amplitude
d. train - -----ANSWER---->d. train
The percentage of on-time to total-time of a pulsatile current is called:
a. frequency
b. amplitude
c. phase duration
d. duty cycle - -----ANSWER---->d. duty cycle
Which of the following is a contraindication to e-stim?
a. placing electrodes over the anterior thoracic region
