ELECTRO 1 & 2 Flashcards by TOP 1 PTRP

Voltage is represented by:
a. Ohm
b. Ampere
c. Volt
d. Watt

c. Volt

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Normal value for Rheobase
a. 1-28 mA
b. 2-28 mA
c. 1-8 mA
d. NOTA

d. NOTA

should be 2-18mA

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Dubois-Reymond’s law deals with _____
a. The time needed by the muscle
b. Intensity of the stimulus
c. Modulation of the stimulus
d. All of the choices are correct

b. Intensity of the stimulus

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Faradic impulse ______
a. 0.01 of a second
b. 0.001 of a second
c. 1 megasecond
d. 1 second

b. 0.001 of a second

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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 max tolerable contraction
c. Duty cycle: 1:1
d. Pulse rate greater than 40 pps biphasic to produce tetanic muscle contraction

d. Pulse rate greater than 40 pps biphasic to produce tetanic muscle contraction

should be greater than 60pps

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Ohm’s law describes the relationship among
a. Voltage, current and amperage
b. Voltage, current and resistance
c. Voltage, intensity and amperage
d. Voltage, current and intensity

b. Voltage, current and resistance

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Patient is a 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 gradual to 8 hours
b. Pulse rate 25 pps
c. Waveform rectangular biphasic 230 microseconds
d. Stimulus amplitude 50-70 mA

c. Waveform rectangular biphasic 230 microseconds

should be 220

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Frequency range for MFC:
a. 1-1000Hz
b. 3000-6000Hz
c. Greater than 10000hz
d. AOTA

b. 3000-6000Hz

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The following are true about Cathode, EXCEPT
a. Tiny rapid gas bubble formation
b. Acidic reaction
c. Increased risk of burns
d. Depolarization

b. Acidic reaction

should be alkalinic

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The following are medications under anion, EXCEPT:
a. Histamine
b. Water
c. Brass
d. Iodide

a. Histamine

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Normal polar formula:
a. ACC>COC>AOC>CCC
b. CCC>ACC>AOC>COC
c. AOC>COC>ACC>CCC
d. CCC>COC>ACC>AOC

b. CCC>ACC>AOC>COC

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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: monophasic biphasic 200-500 microseconds
b. Stimulus amplitude adjusted to maximum tolerable contraction
c. Duty cycle 1:1
d. Pulse rate greater than 60 pps

a. Waveform: monophasic biphasic 200-500 microseconds

should be symmetrical asymmetrical…

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Pulse duration for long rectangular direct interrupted current
a. 0.02-1ms
b. 1-800ms
c. 1-2000ms
d. 10ms

b. 1-800ms

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Duty cycle used in Russian current to produce muscle fatigue
a. 1:5
b. 2:5
c. 5:1
d. 5:2

c. 5:1

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Conventional TENS parameters, EXCEPT:
a. Pulse Duration 50-100
b. Duration of 20-60 mins
c. Long lasting effect
d. NOTA

c. Long lasting effect

should be temporary

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A physician has prescribed iontophoresis for a patient with pain on the shoulder. The chemical ion to be utilized in this case by direct current should be negative. Which of the following chemical ions listed below would be appropriate to use for a negative current?
a. Hydrocortisone
b. Lidocaine
c. Magnesium
d. Salicylate

d. Salicylate

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You are demonstrating to PT students a machine that can provide mid-range frequencies of 2400 to 2500 Hz. What unit is he demonstrating?
a. Transcutaneous electrical nerve stimulation
b. russian stimulation
c. Interferential current
d. High volt electrical stimulation

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b. russian stimulation

Frequency range for Low frequency currents
a. 1-1000 hz
b. 3,000-6,000 hz
c. . 10,000 Hz
d. None of these

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a. 1-1000 hz

What type of ES has the following description: MFC with approximately 4000 Hz and utilizes 4 electrodes in a crossed pattern on the patient
a. MFC Beat
b. MFC Burst
c. TENS
d. Iontophoresis

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a. MFC Beat

Pulse Duration of Brief Intense TENS
a. 50-150 ms
b. 50-200 ms
c. 50-250 ms
d. 50-300ms

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c. 50-250 ms

PT records the parameters of an electrical
stimulation treatment in a patient’s medical
record. The standard unit of measure when
recording current frequency is
a. Ampere
b. Hertz
c. Farad
d. Volt

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b. Hertz

A natural source of infrared radiation is
sunlight. Approximately what percentage of
average sunlight is infrared radiation as
compared to UVR
a. 40%
b. 50%
c. 60%
d. 70%

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c. 60%

Which of the following tissues absorbs the
least amount of an US beam at 1 MHz
a. Bone
b. Skin
c. Muscle
d. Blood

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d. Blood

The area of the body most sensitive to
ultraviolet radiation is
a. Face
b. Hands
c. Feet
d. Arms

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a. Face

when a muscle is in a state of partial reaction of degeneration, it responds to a tetanizing (faradic) current by a. normal reaction b. diminished response c. no response d. brisk contraction

b. diminished response

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

b. Light Amplification by Stimulated Emission of Radiation

Anode, EXCEPT a. Hardening effect b. Sclerotic c. Sclerolytic d. Decrease risk for burn

c. Sclerolytic

The muscle responds to galvanic stimulation but the response is slow and sluggish a. Accompanies partial reaction of degeneration b. Accompanies full reaction of degeneration c. Accompanies absolute reaction of degeneration d. Reaction of degeneration is not involved

b. Accompanies full reaction of degeneration

A therapist reviews a technical manual for an electrical stimulation unit. The manual discusses several inherent electrical terms such as voltage, current and resistance. Which of the following terms is commonly used to express current? a. Ohm b. Voltage c. Ampere d. Coulomb

c. Ampere

The magnetron oscillator is a component of the a. Short-wave diathermy b. Ultrasound generator c. Low-frequency generator d. Microthermy

d. Microthermy

A 25-year-old woman has been referred to a physical therapist by an orthopedist because of low back pain. The therapist is performing an ultrasound at the L3 level of the posterior back when the patient suddenly informs the therapist that she is looking forward to having her third child. On further investigation, the therapist discovers that the patient is in the first trimester of pregnancy. Which of the following is the best course of action for the therapist? a. Change the settings of the ultrasound from continuous to pulsed. b. Continue with the continuous setting because first trimester pregnancy is not a contraindication. c. Cease treatment, notify the patient’s orthopedic physician, and document the mistake. d. Send the patient to the gynecologist for an immediate sonogram

c. Cease treatment, notify the patient’s orthopedic physician, and document the mistake.

Wavelength of Short UVR a. 700-1500 b. 1600-12000 c. 0.1-3 mm d. 180-290

d. 180-290

Mottled appearance on the skin after repeated heat radiation is called a. Erythemia dosage b. Erythemia ad lib c. Erythemia ab igne d. Erythemia pigmentation

c. Erythemia ab igne

A patient complaining of a burning pain during US treatment indicates a. Too much intensity b. Too fast movement of US head c. Insufficient medium d. Too much medium

c. Insufficient medium

Luminous IRR: a. Needs preheating before its use b. Has a wavelength range of 15000 – 12000 nm c. Has a tungsten filament as a source d. Has a longer wavelength than nonluminous infrared radiation

c. Has a tungsten filament as a source

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 heating is a. Direct b. Biphasic pulsed c. Interferential d. TENS

a. Direct

A PT applies 3.0 MHz ultrasound at 1.5 w/cm2 to treat a patient with Carpal Tunnel Syndrome. Majority of the ultrasound energy will be absorbed within a depth of ______ centimeters. a. 4-5 b. 1-2 c. 5-6 d. 2-3

b. 1-2

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

b. Accelerate wound healing

The complication that may result from excess ultraviolet radiation is a. Telangiectasis b. Herpes simplex c. All of these d. Impetigo

c. All of these

The following are approaches of electrical stimulation to control spasticity, except: a. Alternately stimulating agonist and antagonist muscle b. Stimulation of the spastic muscle c. None of these d. Stimulation of antagonist to utilize the effect of reciprocal inhalation

c. None of these

ELECTRO 1 & 2 Flashcards

(40 cards)