DAY 13 Flashcards
1
Q
- A patient with vascular problem develops an infected skin ulcer on the left heel. The modality that
would NOT be applied for this patient is
a. low intensity direct current – can be used for wound healing
b. ultraviolet radiation – can be used for wound healing
c. high voltage galvanic stimulation – still a galvanic type of current that can be used for wound
healing
d. hot moist pack
A
d. hot moist pack
**heat accelerates bacterial growth
2
Q
- Which ultrasound treatment parameter is recommended for a stage 2 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
b. 3 MHz at .2-1 watt/cm2
3
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 muscle contraction
A
c. duty cycle: 1:2 (*1:1)
4
Q
- Ohm’s Law describes the relationship among
a. voltage, resistance and amperage
b. amperage, conductance and resistance
c. conductance, voltage and resistance
d. voltage, conductance and amperage
A
a. voltage, resistance and amperage
** V = AR/IR
5
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. direct
b. biphasic pulsed
c. interferential
d. TENS - In electrotherap
A
a. direct
6
Q
- In electrotherapy, the frequencies generated by high voltage units are usually no greater than 100 to
140 Hz while that produced by low voltage units are ________ Hz.
a. 500 - 1,000
b. 2,000 - 3,000
c. 3,000 - 4,000
d. 1,000 - 2,000
A
d. 1,000 - 2,000
7
Q
- 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: gradually increased until patient tolerates 8 hours of stimulation
b. pulse rate: 50 pes
c. waveform: rectangular monophasic waveform with 220 microseconds output
d. stimulus amplitude: 50 to 70 mmA
A
b. pulse rate: 50 pes (*25pps)
8
Q
- In electrotherapy, if the peak pulse duration in high voltage generators ranges from 50-100 usec, for low
voltage generators it is msec. (Possible Ref: Michlovitz 6th Ed Chapter 9 pp. 278-9)
a. 600-800
b. 01-02
c. 900-950
d. .03-500
A
d. .03-500
9
Q
- Pt applies ultraviolet treatment to a female patient who the day after complained of peeling and itching.
These disappear after 3 days. The dosage received was dose. (Ref: Dunaway Set A Question 25)
a. Minimal erythemal
b. First degree erythemal
c. Suberythemal
d. Third degree erythema
A
b. First degree erythemal
**
a. slight itching only
b. (+) desquamation & skin itching
c. does not cause reddening
10
Q
- The major advantage of using red-glass in heat lamp is _____________.
a. there is less light glare
b. it filters out long infra-red rays
c. it increases the physiological effects of radiation
d. it filters out harmful ultraviolet rays
A
a. there is less light glare
11
Q
- 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
A
b. 1 – 2
12
Q
- According to the temperature law of Vant Hoff, for every rise of 10 degrees C the rate of oxidation is
increased how many times?
a. Once
b. 2.5
c. 3
d. Twice
A
b. 2.5
13
Q
- These statements on reflex heating are TRUE, EXCEPT:
a. It is also termed consensual heating and Landis Gibbon’s Reflex
b. The effect is felt after several hours
c. It is useful for patients with circulatory problems such as diabetes or peripheral vascular
disease
d. The technique involves the application of heat to one area of the body that results in an
increase in cutaneous circulation and other reactions in another area
A
b. The effect is felt after several hours (*ALMOST IMMEDIATELY)
14
Q
- A PT checks the water temperature of the hot pack machine after several patients report the heat being
very strong. Which of the following temperatures would be acceptable?
a. 83 degrees Celsius (181 degrees F)
b. 64 degrees Celsius (147 degrees F)
c. 94 degrees Celsius (201 degrees F)
d. 71 degrees Celsius (160 degrees F)
A
d. 71 degrees Celsius (160 degrees F)
15
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
16
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 (*GREATER) than 60 pps biphasic pulses to produce tetanic muscle contractions