PTI LEVEL 2 |ACTUAL QUESTIONS AND VERIFIED
ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Which of the following would be considered a potential indication for electrotherapy?
a. cardiac arrhythmia
b. osteomyelitis
c. stress incontinence
d. seizure disorders
CORRECT ANSWER
Answer: c
Rationale: Stress incontinence refers to the unintentional loss of urine and is often
prompted by a physical movement or activity such as coughing or sneezing. Pelvic floor
muscle weakness is often the cause of this condition. Electrotherapy can be used
effectively to increase the strength and coordination of the pelvic floor muscles. Cardiac
arrhythmia, osteomyelitis, and seizure disorders are considered contraindications for
electrotherapy
Question 2
A therapist uses neuromuscular electrical stimulation with a patient rehabilitating from a
knee injury. During the treatment session the therapist adjusts the on:off time ratio to 1:5.
Which of the following is consistent with the described ratio?
a. 8 seconds on and 40 seconds off
b. 10 seconds on and 30 seconds off
c. 30 seconds on and 10 seconds off
d. 40 seconds on and 8 seconds off
CORRECT ANSWER
1
,Answer: a
Rationale: An on:off ratio of 1:5 means that for each second of on time there would be
five seconds of off time. Eight seconds of on time and 40 seconds of off time maintains
the 1:5 ratio.
Question 3
What electrode configuration includes two electrodes from two different stimulating
circuits that are positioned so that the individual currents intersect?
a. unipolar
b. monopolar
c. bipolar
d. quadripolar
CORRECT ANSWER
Answer: d
Rationale: Quadripolar technique refers to two electrodes from two separate stimulating
circuits that are positioned so that the individual currents intersect with each other. This
technique is utilized with interferential current.
Question 4
A therapist attempts to determine the amount of time necessary to treat an area
approximately two times the size of the ultrasound transducer. The most appropriate
treatment time is:
a. 3 minutes
b. 5 minutes
c. 7 minutes
d. 12 minutes
CORRECT ANSWER
Answer: b
2
, Rationale: A therapist can cover an area two to three times the size of the transducer in a
five minute period. Five minutes would be a sufficient amount of time given the size of
the area in relation to the size of the transducer.
Question 5
A patient poorly tolerates the sudden increase in force that occurs when transitioning
from off time to on time during neuromuscular electrical stimulation. Which action would
minimize the impact of this transition?
a. decrease the treatment duration
b. modify the waveform
c. utilize a ramp
d. increase the phase duration
CORRECT ANSWER
Answer: c
Rationale: Ramp refers to the number of seconds it takes for the amplitude to gradually
increase or decrease to the maximum value set by the amplitude control. By adding a
ramp the onset of the electrical force will be gradual and, therefore, better tolerated by
the patient.
Question 6
A therapist elects to use a small set of electrodes when applying electrical stimulation to
the anterior forearm of a patient rehabilitating from an upper extremity injury. Which of
the following is most accurate when comparing smaller electrodes to larger electrodes?
a. Smaller electrodes result in increased current density and increased impedance
b. Smaller electrodes result in decreased current density and increased impedance
c. Smaller electrodes result in increased current density and decreased impedance
d. Smaller electrodes result in decreased current density and decreased impedance
CORRECT ANSWER
3
, Answer: a
Rationale: The smaller surface area of small electrodes increases current density and
impedance. Current density is a measure of the density of an electrical current.
Impedance refers to the property of a substance that provides resistance to the flow of
current by offering an alternate current
Question 7
Which ultrasound parameters would produce the lowest total amount of heat delivered to
the target area?
a. 20% duty cycle at 1.2 W/cm2
b. 50% duty cycle at 1.1 W/cm2
c. 75% duty cycle at 1.3 W/cm2
d. continuous ultrasound at 1.2 W/cm2
CORRECT ANSWER
Answer: a
Rationale: Pulsed ultrasound at a 20% duty cycle produces sound energy only 20% of the
time. A 50% duty cycle produces sound energy 50% of the time. Although the intensity is
slightly lower at the 50% duty cycle compared to the corresponding intensity for the 20%
duty cycle, the relatively small decrease would still generate additional heat due to the
significantly increased duty cycle.
Question 8
What type of electrical current is used with iontophoresis?
a. alternating current
b. direct current
c. pulsatile current
d. interferential current
CORRECT ANSWER
4
ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Which of the following would be considered a potential indication for electrotherapy?
a. cardiac arrhythmia
b. osteomyelitis
c. stress incontinence
d. seizure disorders
CORRECT ANSWER
Answer: c
Rationale: Stress incontinence refers to the unintentional loss of urine and is often
prompted by a physical movement or activity such as coughing or sneezing. Pelvic floor
muscle weakness is often the cause of this condition. Electrotherapy can be used
effectively to increase the strength and coordination of the pelvic floor muscles. Cardiac
arrhythmia, osteomyelitis, and seizure disorders are considered contraindications for
electrotherapy
Question 2
A therapist uses neuromuscular electrical stimulation with a patient rehabilitating from a
knee injury. During the treatment session the therapist adjusts the on:off time ratio to 1:5.
Which of the following is consistent with the described ratio?
a. 8 seconds on and 40 seconds off
b. 10 seconds on and 30 seconds off
c. 30 seconds on and 10 seconds off
d. 40 seconds on and 8 seconds off
CORRECT ANSWER
1
,Answer: a
Rationale: An on:off ratio of 1:5 means that for each second of on time there would be
five seconds of off time. Eight seconds of on time and 40 seconds of off time maintains
the 1:5 ratio.
Question 3
What electrode configuration includes two electrodes from two different stimulating
circuits that are positioned so that the individual currents intersect?
a. unipolar
b. monopolar
c. bipolar
d. quadripolar
CORRECT ANSWER
Answer: d
Rationale: Quadripolar technique refers to two electrodes from two separate stimulating
circuits that are positioned so that the individual currents intersect with each other. This
technique is utilized with interferential current.
Question 4
A therapist attempts to determine the amount of time necessary to treat an area
approximately two times the size of the ultrasound transducer. The most appropriate
treatment time is:
a. 3 minutes
b. 5 minutes
c. 7 minutes
d. 12 minutes
CORRECT ANSWER
Answer: b
2
, Rationale: A therapist can cover an area two to three times the size of the transducer in a
five minute period. Five minutes would be a sufficient amount of time given the size of
the area in relation to the size of the transducer.
Question 5
A patient poorly tolerates the sudden increase in force that occurs when transitioning
from off time to on time during neuromuscular electrical stimulation. Which action would
minimize the impact of this transition?
a. decrease the treatment duration
b. modify the waveform
c. utilize a ramp
d. increase the phase duration
CORRECT ANSWER
Answer: c
Rationale: Ramp refers to the number of seconds it takes for the amplitude to gradually
increase or decrease to the maximum value set by the amplitude control. By adding a
ramp the onset of the electrical force will be gradual and, therefore, better tolerated by
the patient.
Question 6
A therapist elects to use a small set of electrodes when applying electrical stimulation to
the anterior forearm of a patient rehabilitating from an upper extremity injury. Which of
the following is most accurate when comparing smaller electrodes to larger electrodes?
a. Smaller electrodes result in increased current density and increased impedance
b. Smaller electrodes result in decreased current density and increased impedance
c. Smaller electrodes result in increased current density and decreased impedance
d. Smaller electrodes result in decreased current density and decreased impedance
CORRECT ANSWER
3
, Answer: a
Rationale: The smaller surface area of small electrodes increases current density and
impedance. Current density is a measure of the density of an electrical current.
Impedance refers to the property of a substance that provides resistance to the flow of
current by offering an alternate current
Question 7
Which ultrasound parameters would produce the lowest total amount of heat delivered to
the target area?
a. 20% duty cycle at 1.2 W/cm2
b. 50% duty cycle at 1.1 W/cm2
c. 75% duty cycle at 1.3 W/cm2
d. continuous ultrasound at 1.2 W/cm2
CORRECT ANSWER
Answer: a
Rationale: Pulsed ultrasound at a 20% duty cycle produces sound energy only 20% of the
time. A 50% duty cycle produces sound energy 50% of the time. Although the intensity is
slightly lower at the 50% duty cycle compared to the corresponding intensity for the 20%
duty cycle, the relatively small decrease would still generate additional heat due to the
significantly increased duty cycle.
Question 8
What type of electrical current is used with iontophoresis?
a. alternating current
b. direct current
c. pulsatile current
d. interferential current
CORRECT ANSWER
4
