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FEB 2019 PTRP > REMBE Electro > Flashcards

REMBE Electro Flashcards

(77 cards)

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1
Q

Wavelength of short ultraviolet radiation

A

180-290 m♈️

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2
Q

Wavelength of long Ultraviolet radiation

A

290-400 m♈️

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3
Q

UV wavelength that will produce reticulo-endothelial stimulation

A

2900-4000 A

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4
Q

Law that states that the magnitude of radiation flux at any particular point of the skin depends upon the distance of that point from the radiating element.

A

Bunsen-Roscoe law of reciprocity

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5
Q

The major portion of radiation from long infrared is absorbed in the stratum

A

Corneum

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6
Q

The major advantage of infrared heat lamps

A

Increased local metabolism

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7
Q

The penetration of infrared radiation opinto the skin depends upon the

A

Wavelength

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8
Q

Percentage of infrared radiation of sunlight compared to UVR

A

60%

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9
Q

Luminous infrared
Tungsten filament
Penetrates as deep as 10mm into skin tissue

A

Short wave infrared

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10
Q

Primary effect of radiant energy on tissue is

A

Thermal

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11
Q

Mottled appearance on the skin after repeated heat radiation is called

A

Erythemia ab igne

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12
Q

The normal polar formula for a galvanic current

A

CCC-ACC-AOC-COC

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13
Q

Following peripheral nerve injury the chronaxie is increased or decreased

A

Increased

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14
Q

In iontophoresis, one should keep the current strength in relation to the size of the electrodes. Approx. what milliamperage of galvanic current may be used as a guide per square inch of electrode surface?

A

0.5-1

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15
Q

For each degree fahrenheit rise of body temperture, pulse rate will increase about how many beats

A

10 beats

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16
Q

Transmission of heat using hot bottled water

A

Conduction

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17
Q

Accdg to the temperature law of van’t Hoff. For every rise of 10 degrees celcius the rate of oxidation is increased for how many time?

A

2.5

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18
Q

Wavelength for long-wave infrared radiation

A

Apprx. 1500-12000 m♈️

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19
Q

Complications that may result from excess UV radiation

A

Impetigo
Herpes simplex
Telangiectasia
(All are dt increased susceptibility of the skin from infections)

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20
Q

Galvanic-tetanus ratio of normal muscle

A

10-12 to 1

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21
Q

Increase in the chronaxie of the ms signifies increase or decrease of ms excitability

A

Decrease

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22
Q

Area of the bofy that is most susceptible to UV rad

A

Face

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23
Q

Tungsten filaments as a source

A

Luminous infrared radiation

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24
Q

Whether local or general effects result from infrared radiation depends upon the

A

Intensity of radiation

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25
The opposition offered by the electrical conductor to the flow of a current is represented by the
Ohm
26
Ion charge that is attracted to anode
Positive ion
27
Ion charge that is attracted to cathode
Negative ions
28
Duration of faradic impulse
0.01 of a second
29
Effect of Electrical stimulation to denervated ms
Maintains circulation
30
``` Positive charge ion that may be introduced into tissue c positive pole of direct current.except A.Copper B.Zinc C.Histamine D.Salicylic acid ```
D. Salicylic acid | -a negative ion
31
Histamine vz mecholyl Mecholyl except A.produces a more intense local counterirritation B.deposited in deeper tissue layers of the skin and is more gradually absobed C.systemic effects occur as a rule and more often D.gives best results in jt affectations,peptic ulcer dse, and in varicose veins
A. | More intense local hyperemia dapat not a counterirritation
32
Galvanic-tetanus ratio of denervated muscle
1:1
33
Reciprocal of excitability
Chronaxie
34
Luminous infrared radiation source
Tungsten filament
35
Guide of dosage is erythemal response of px
Uv rAd
36
Standard skin burner distance of UV rad
30 inches
37
Ms is in partial reaction degeneration state Response to a tetanizing(faradic) current A.normal resp B.diminished resp C.no resp D.brisk contraction
B. Diminished resp
38
Ms is in full reaction degeneration state Response to a tetanizing(faradic) current A.normal resp B.diminished resp C.no resp D.brisk contraction
C. No response
39
``` Tetanus frequency of a denervated ms A.5-10/sec B.30-50/sec C.over 100/sec D.none of the above ```
A. 50-10/sec
40
``` Magnetron oscillator A. Short-wave diathermy B.US generator C. Low freq generator D.microthermy ```
D. Microthermy | -Mirowave diathermy
41
``` Best conductivity of all tissues to an electrical current A.skin B.tendon C.bone D.muscle ```
D.muscle | The only one that will respond
42
Dielectric substance A. Device for storing an electrical charge B. Good conductor of electricity C. An electrolyte D. Allows electrostatic induction across it
D
43
``` Full reaction of degeneration A.LMN lesion B.UMN lesion C. Recent CVA D. Long standing PNI ```
A.
44
Heating on an electromagnetic field A. Produces eddy current in conductive substances B. Is a so called current of capacity C. is less effective in vascular type in tissue D. Is by a conduction current
A.
45
``` High frequency(short wave diathermy) wavelength of 22 meters is A. 27.12 MHz/sec B.40 MHz/sec C.13.56 MHz/sec D.nota ```
C
46
High freq(short wave diathermy) wavelength of 11 meters A. 27.12 MHz/sec B.40 MHz/sec C.13.56 MHz/sec D.nota
A.
47
Contains a primary and a secondary coil
Faradic coil
48
``` Positive ion A. Iodine B. Histamine C. Salicylic acid D. Brass ```
B
49
Counterirritant effect produced by infrared rad
Desensitization of superficial sensory neve
50
Unit of power
``` poWer A T T S ```
51
Reaction degeneration following a PNI
Change in electrical reaction of the ms fibers
52
Pigmentation resulting from infrared rad
Mottled
53
Pigmentation resulting from UV rad
Homogenous
54
US causes the greatest rise in temp in tissue with
Protein
55
``` When using US cavitation occurs in which A. After laminectomy B. Carotid sinus C. Infected wound D. Plastic implants ```
A.
56
Occurs in the tissue layers when using ultrasound with higher than therapeutic intensity
Cavitation
57
Burning pain during US
Add medium
58
Wattage to Increase nerve conduction velocity
3 w/cm2
59
US effect on membrane permeability
Increase
60
``` Assymetrical alternating current A. Square wave DC B. Faradic impulse C. Sine wave D. Static wave ```
B
61
Rheobase current for denervated ms
Galvanic
62
``` Motor nerve sectioned, chronaxie A. Increase B. Decrease C. Remains unaltered for 1 week D. Undergoes longitudinal reaction ```
C
63
``` Dubois-reymonds law deals with A. Rheobase B. Chronaxie C. Intensity of stim D. Make-break law ```
C
64
``` Electrotonus causes the nerve irritability to A. Dec at cathode B. Inc at cathode C. Inc a anode D. Dec at anode ```
B
65
Uv rad at 2mm level what skin layer
Stratum cornium
66
UV rad | Intensity of rad varies inversely with the square of distance from the source
Inverse square law
67
Electromagnetic induction is discoverd by
Faraday
68
Current of electricity except A. Heat is produced in all parts of the circuit B. chemical action is produced by a direct current C. Magnetic needle is deflected when brought near a circuit when the current is flowing D. Very rapid alternating currents produce no chemical effects
D.
69
Hydrogen ions | Posi or nega charge
Positive charge
70
When testing for the polarity of a direct current generator the pole which causes most rapid bubbling is A. Anode B. Cathode
B.
71
When testing for the polarity of a direct current generator the pole which causes slow bubbling is A. Anode B. Cathode
A.
72
``` Peripheral nerve lesion, there is no reaction of degeneration Recovery will take place A. 2-4 wks B. 6-12 wks C. 6-12 mos D. It is a fxnal condition ```
A
73
``` Normal chronaxie value for skeletal ms. Except A. 1/1000 sec B. 1 sigma C. 1 millisec D. 1000 millisec ```
D. | Normal: 0.1-200 millisec
74
The minimal amount of current necessary to elicit a threshold contraction of a ms
Rheobase
75
Primary effect of UV rad
Photochemical
76
Clinical effect of mild general body heating
Dec blood pressure | Inc pulse rate
77
``` Fxnal or hysterical paralysis will respond to A. Galvanic B. Faradic C. Both D. Neither ```
C

FEB 2019 PTRP (29 decks)

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