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Final Coaching > Physical Agents > Flashcards

Physical Agents Flashcards

1
Q

Convert 130 deg F to C:
a. 54.2
b. 54.3
c. 54.4
d. 54.5

A

c. 54.4

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2
Q

Specific heat of paraffin wax bath is about _______ kJ/kg per deg C
a. 4.2
b. 2.4
c. 2.72
d. 2.74

A

d. 2.74

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3
Q

When administering cryotherapy to a patient with acute injury, it is best to inform the patient to expect changes in sensation with the following sequence:
a. Aching, Numbness, Burning followed by Intense Cold
b. Intense cold, Burning, Aching followed by Numbness
c. Numbness, Aching, Burning, followed by intense cold
d. None of the above

A

b. Intense cold, Burning, Aching followed by Numbness

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4
Q

The following are contraindications of traction, EXCEPT:
a. Vascular conditions
b. Patients with subacute state of degenerative joint disease
c. Hypermobility
d. Local and systemic disease affecting joints, ligaments, bones and muscles such as tumors and infections

A

b. Patients with subacute state of degenerative joint disease

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5
Q

DuBois-Reymond’s law deals with
a. Rheobase
b. Chronaxie
c. Intensity of stimulus
d. Make-break law

A

c. Intensity of stimulus

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6
Q

The current leakage for electrodes should not exceed ______ milliamperes
a. 30
b. 40
c. 50
d. 60

A

c. 50

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7
Q

Erb’s law states that _____
a. All of these
b. Opening currents are more effective than closing currents in causing normal depolarization
c. Cathode currents are more effective than anodal in causing normal depolarization
d. Less current is necessary to produce minimum contraction with cathode than anodal closing current

A

c. Cathode currents are more effective than anodal in causing normal depolarization

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8
Q

A PT will apply electrical stimulation to a patient with venous stasis ulcer on the right lower extremity. The correct type of electrical stimulation to promote wound healing is
a. Monophasic
b. Biphasic
c. Interferential
d. TENS

A

a. Monophasic

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9
Q

The duration of a faradic impulse is about:
a. 1 megasecond
b. Varies
c. 0.01 of a second
d. 0.001 of a second

A

d. 0.001 of a second

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10
Q

In electrical stimulation this current mode is described as a time period with a gradual rise of thecurrent intensity which is maintained at a selected level for a given period of time followed by a gradual or abrupt decline in intensity.
a. Continuous
b. Ramped
c. Surged
d. Interrupted

A

b. Ramped

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11
Q

Trauma and compromised vascular function may cause excessive amount of body fluids to accumulate in the interstitial spaces. Electrical stimulation to muscles may improve the pumping action and thus improve circulation to the area. The following parameters are used to manage edema, EXCEPT:
a. Waveform: Monophasic HVPC or symmetrical or asymmetrical biphasic pulses with a duration of 200-500 microseconds
b. Pulse rate: greater than 60 pps to produce tetanic contraction
c. Stimulus amplitude: adjusted to produce minimum tolerable contraction
d. Duty cycle: 1:1

A

c. Stimulus amplitude: adjusted to produce minimum tolerable contraction

Max Tol

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12
Q

Electrical stimulation of spastic muscles has been proven to effectively reduce spasticity. The following are parameters to
apply, EXCEPT:
a. Waveform: symmetrical or asymmetrical biphasic pulses with 200-500 microseconds duration
b. Stimulus amplitude: adjusted to maximum tolerable contraction
c. Duty cycle: 1:2
d. Pulse rate: greater than 60 pps biphasic pulses to produce tetanic ms contraction

A

c. Duty cycle: 1:2

1:1*

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13
Q

A patient is 16 year old female student with idiopathic scoliosis. PT plans to apply bipolar or quadripolar electrodes over the overstretched and weakened muscles. He can select the following parameters, except:
a. Duration: gradually increased until patient tolerates 8 hours of stimulation
b. Pulse rate: 50 pps
c. Waveform: rectangular monophasic waveform with 220 microseconds output
d. Stimulus amplitude: 50 to 70 mA

A

b. Pulse rate: 50 pps

25 pps*

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14
Q

In the reeducation and facilitation of muscles, electrical stimulation is used as a guide to improve proprioceptive and visual sense of the motions and activities being facilitated. When bipolar electrodes are placed over the large muscles or muscle groups, you select the following
parameters EXCEPT
a. waveform: symmetrical or asymmetrical biphasic pulses with a duration of 200-500 microseconds
b. stimulus amplitude: amplitude adjusted to maximum tolerable contraction
c. duty cycle: 1:1 cycle to produce rhythmical muscle
contractions
d. pulse rate: lesser than 60 pps biphasic pulses to produce
tetanic muscle contractions

A

d. pulse rate: lesser than 60 pps biphasic pulses to produce
tetanic muscle contractions

greater**

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15
Q

A client uses transcutaneous electrical neuromuscular stimulation for pain modulation. Which set of parameters best describes conventional TENS?
a. 200-250 pps, short phase duration, low intensity
b. 150-200 pps, long phase duration, low intensity
c. 100- 150 pps, short phase duration, high intensity
d. 50-100 pps, short phase duration, low intensity

A

d. 50-100 pps, short phase duration, low intensity

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16
Q

You are treating a patient who is recovering from GBS and is still experiencing considerable weakness and fatigue in her lower extremity muscles. You decided to use som
e electrical stimulation to help facilitate strength for her muscle contractions. What type of duty cycle would be most appropriate for this patient?
a. Duty cycle 20 seconds on, 50 seconds off
b. Duty cycle 10 seconds on, 10 seconds off
c. Duty cycle 10 seconds on, 50 seconds off
d. Duty cycle 50 seconds on, 10 seconds off

A

c. Duty cycle 10 seconds on, 50 seconds off

17
Q

A 25 year old singer is complaining of TMJ pain. She also complains of headaches and neck tightness. She has been under a lot of stress lately and has noticed an increase in the frequency and magnitude of symptoms. Her doctor suggested and you concur that biofeedback might help him relax the neck and shoulder muscles and therefore, decrease her symptoms. Initially, EMG biofeedback protocol should consist of:
a. High detection sensitivity with electrodes placed closely together
b. High detection sensitivity with electrodes placed far apart
c. Low detection sensitivity with electrodes placed far apart
d. Low detection sensitivity with electrodes placed closely together

A

d. Low detection sensitivity with electrodes placed closely together

18
Q

A PT applies 1 MHz ultrasound at 1.5 w/cm2 to treat a patient with
energy will be
a. 4–5
b. 1-2
c. 5–6
d. 2–3

A

a. 4–5

19
Q

A therapist administers ultrasound over a client’s anterior thigh. After one minute of treatment the client reports feeling a
slight burning sensation under the sound head. The therapist’s most appropriate action is to:
a. Temporarily discontinue treatment and examine the amount of coupling
b. Continue with treatment, while varying the parameters
c. Explain to the client that what she feels is not out of the ordinary when using ultrasound
d. Discontinue treatment and contact physician

A

a. Temporarily discontinue treatment and examine the amount of coupling

20
Q

Which ultrasound treatment parameter is recommended for a stage 3 chronic dermal wound?
a. 1 MHz at 1.5 watt.cm2
b. 3 MHz at .2-1 watt/cm2
c. 3 MHz at 1.5 watt/cm
d. 1 MHz at .2-1 watt/cm2

A

d. 1 MHz at .2-1 watt/cm2

21
Q

Whichmodalitycausesthegreatestincreaseintissuetemperature?
a. Infrared
b. Ultrasound
c. Diathermy
d. Hot moist pack

A

c. Diathermy

22
Q

In radiation, the intensity of radiation varies inversely with the square of the distance from the source. Which law applies?
a. Angulation of Rays law
b. Inverse square law
c. The law of Grotthus
d. DuBois-Reymond’s law

A

b. Inverse square law

23
Q

A PT applies ultraviolet treatment to a female patient who the day after complained of peeling and itching. The dosage received was .
a. Third degree erythemal dose
b. First degree erythemal dose
c. Minimal erythemal dose
d. Suberythemal dose

A

b. First degree erythemal dose

24
Q

LASER:
a. Light Accommodation by Stimulated Emission of Radiation
b. Light Amplification by Stimulated Emission of Radiation
c. Light Amplification by Stimulated Energy of Radiation
d. NOTA

A

b. Light Amplification by Stimulated Emission of Radiation

25
Q

Laser radiation is commonly used for .
a. Relief of neurogenic pain
b. Accelerate wound healing
c. Prevention of nerve degeneration
d. Relief of arthritic pain

A

b. Accelerate wound healing

Final Coaching (5 decks)

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