Diathermy

Question 1

Greek meaning of Diathermy

Answer 1

Through heating

Question 2

Frequency range for short-wave

Answer 2

10 to 100 mHz

Question 3

Frequency range for microwave

Answer 3

300 mHz to 300 gHz

Question 4

Wavelength range for short wave

Answer 4

3 to 30 m

Question 5

Wavelength range for microwave

Answer 5

1 mm to 1 m

Question 6

Types of Diathermy

Answer 6

Inductive coils
Capacitive plates / Condenser
Magnetron

Question 7

Thermal effects of Diathermy

Answer 7

Increased Vasodilation
Elevation of pain threshold
Alteration of muscle strength
Increased soft tissue extensibility

Question 8

Indications for Thermal Diathermy

Answer 8

Pain Control
Accelerated Healing
Decreased joint stiffness
Increased ROM

Question 9

Indications of Non-thermal Diathermy

Answer 9

Pain and edema control
Wound healing
Nerve healing
Bone healing

Question 10

Precautions for applying Diathermy

Answer 10

Stay away for 1-2 meters
At least 30-50 cm away from the PSWD applicators
Out of the direct beam of any MWD device

Question 11

Precaution for all kinds of Diathermy

Answer 11

Electronic or magnetic equipment in vicinity
Obesity
Copper-bearing intrauterine contraceptive devices

Question 12

Precaution for Non-thermal Diathermy

Answer 12

Pregnancy
Skeletal immaturity

Question 13

Contraindications for all forms of Diathermy

Answer 13

Implanted or transcutaneous neural stimulators

Question 14

Contraindication for Thermal-level Diathermy

Answer 14

Metal implants or pacemakers
Malignancy
Pregnancy
Eyes
Testes

Question 15

Contraindications for Non-thermal Diathermy

Answer 15

Deep tissue
Substitute for conventional therapy for edema and pain

Question 16

Parameters for SWD

Answer 16

F: 3-30 MHz
Non-ionizing
WL: 27.12 MHz, 11m

Question 17

Patient’s ions and dipoles oscillate at the same frequency with the device circuit

Answer 17

Electromagnetic Resonance (Tuning)

Question 18

Physiological and Therapeutic effects of SWD

Answer 18

Increases blood supply
Increases metabolism
Decreases BP
Increased activity of Sweat Glands

Question 19

No perception of heat

Answer 19

Dose 1

Question 20

Mild perception of heat

Answer 20

Dose 2

Question 21

Comfortable perception of heat

Answer 21

Dose 3

Question 22

Maximum tolerable perception of heat

Answer 22

Dose 4

Question 23

Parameters for CSWD

Answer 23

PP: 500 W
PF: N/A
PD: N/A
MP: N/A
TT: 20 mins (1200 secs)
D: 600 kJ

Question 24

Parameters for PSWD

Answer 24

PP: 500 W
PF: 200 Hz
PD: 400 μs
MP: 40 W
TT: 20 mins (1200 secs)
D: 48 kJ

Question 25

Indications of SWD

Answer 25

Pain and edema control
Soft tissue healing
Nerve healing
Bone healing

Question 26

Application method where capacitive plates are used.

Answer 26

Condenser field method

Question 27

Mediums for inductive method

Answer 27

Air space
Dry towel

Question 28

Instruments used for inductive method

Answer 28

Cables
Drums

Question 29

Electrode positioning wherein it is placed over opposite aspects of trunk and limb

Answer 29

Contraplanar (Transverse positioning)

Question 30

Electrode positioning wherein it is placed side by side on the same aspect of the body part with adequate space in between

Answer 30

Coplanar

Question 31

Electrode positioning wherein it is placed at the end of the limb with vertical orientation

Answer 31

Longitudnial method

Question 32

Electrode positioning wherein it is placed side by side on the same aspect of the body part with adequate space in between.

Answer 32

Coplanar

Question 33

Electrode positioning wherein it is placed over the site of lesion and the other electrode at a distant part of the body or may not be used at all.

Answer 33

Monopolar technique