Study Diathermy (PTA) Flash Cards

 
Pile Management Card
Diathermy (PTA)

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What are the contraindications for the use of diathermy?
-METAL IMPLANTS OR PACEMAKERS
-MALIGNANCY
-PREGNANCY
-EYES
-TESTES
-GROWING EPIPHYSES
What are the indications of non thermal diathermy?
-PAIN AND EDEMA
-WOULD HEALING
-NERVE AND BONE HEALING
What are the indications of thermal diathermy?
-PAIN
-INCREASES ROM
-ACCELERATE HEALING
-DECREASE JOINT STIFFNESS
Certain cancer cells have been shown to increase at what temp?
40-41 DEGREES C
Certain cancer cell have been shown to die at what temp?
42-43 DEGREES C
Diathermy is occasionally used by physicans to treat tumor by?
HYPERTHERMIA
How far should electrical equipment be while diathermy is in use?
3-5 meters
What kind of applicator causes fat to increase in temp quickly?
CAPACITIVE PLATES
What distance should a therapist maintain while applying MWD?
OUT OF THE DIRECT BEAM
What distance should a therapist maintain when applying PSWD?
30-50cm
What distance should a therapist maintain when applying continuous diathermy?
1-2 meters
Nonthermal can be used in what time of injury?
-ACUTE
-SUBACUTE
-CHRONIC STAGES
During pregnency, it is recommened that therapists avoid what kind of diathermy?
-SWD
-MWD
What is the proper distance for capacitive plates from the surface of the skin?
2-10cm (1-3in)
How long is pulsed short wave diathermy (PSWD) applied for?
30-60 MINUTES
How long is thermal level diathermy applied for?
20 MINUTES
Where do inductive applicators produce most of it's heat?
DEEPER STRUCTURES
Where do capacitive plates produce most of it's heat?
SKIN AND SUPERFICIAL TISSUES
True/False

Inductive plates heat deeper than capacitive plates?
TRUE
These are used when the patient becomes part of the electrical current?
CAPACITIVE PLATES
True/False

Capacitive plates heat by an ELECTRICAL field method?
TRUE
True/False

Inductive coil applicators heat by an ELECTRICAL field method?
FALSE

MAGNETIC FIELD
Shortwave diathermy is knows as what?
HEATING BY MAGNETIC FIELD METHOD
What kind of diathermy is used for a magnetron?
MICROWAVE DIATHERMY (MWD)
What kind of diathermy is used for inductive coils and capacitive plates?
SHORTWAVE DIATHERMY (SWD)
What are the three types of diathermy applicators?
-INDUCTIVE COILS
-CAPACITIVE PLATES
-MAGNETRON
Made up of a coil through wich an alternating electric current flows?
INDUCTIVE COIL
What are the two basic forms of inductive coil applicators?
CABLES AND DRUMS
When do inductive coil applicators produce the most heat?
-PRODUCE THE MOST HEAT IN TISSUES CLOSEST TO APPLICATOR
-TISSUES WITH HIGHEST ELECTRICAL CONDUCTIVITY
What happens to the magnitude of the shortwave diathermy (SWD) and the distance increases?
DECREASES
True/False

Diathermy can be used with medal?
FALSE

CANNOT BE USED WITH MEDAL
True/False

Diathermy does not penetrate as deep as US?
TRUE
What are the advantages of diathermy?
-CAN HEAT DEEPER THAN A HOT PACK
-CAN TREAT LARGER AREAS THEN US
-REDUCED RISK OF PERIOSTEAL BURNING
-MWD (MICROWAVE) REFLECTED AT TISSUE INTERFACES
-EASY TO SET UP AND NOT LABOR INTENSIVE
-BILLING ISSUES
What does diathermy like?
HIGH WATER CONTENT (MUSCLE)
What is the advantage of diathermy over other thermal agents?
-HEETS DEEPS TISSUES THAN SUPERFICIAL THERMAL AGENTS (IE: HOT PACKS)

-HEATS LARGER AREAS THAN ULTRA SOUND
What determines how much energy will be absorbed by the tissue and how warm it will become?
ELECTROMAGNETIC FIELD INTENSITY AND TISSUE TYPE.
What is the key factor that determines whether a diathermy device will increase tissue temperature?
THE AMOUNT OF ENERGY ABSORBED BY THE TISSUE
When diathermy is applied at non thermal levels, it is generally referred to as?
PULSED SHORTWAVE DIATHERMY
SWD and MWD can be delivered in what kind of manner?
CONTINUOUS OR PULSED MODE
(WHEN GENERATED AT A SPECIFIC AVERAGE INTENSITY, CAN GENERATE HEAT IN THE BODY)
The application of shortwave or microwave electromagnetic enerty to produce heat and other physiological changes within tissues?
DIATHERMY
Shortwave and microwave are both?
NONIONIZING
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