Test 2 Part 2

Question 1

T/F: You should never exceed a peak intensity of 8.0 W/cm^2 when using ultrasound and never more than 15 minutes.

Answer 1

True, generally .5-2.5 for 5-8 minutes

Question 2

Aka sonophoresis, similar to iontophoresis, and uses sound to drive medication into tissue.

Answer 2

Phonophoresis

Question 3

What are some uses for US and electrical combo?

Answer 3

trigger points, epicondylitis, superficial pain areas, and to decrease adhesions

Question 4

What treatment is used for stimulating fracture healing, can be taken home by patients to use 1x/day/20 min and is abbreviated LIPUS?

Answer 4

Low Intensity Pulsed US

Question 5

What treatment is used for wound cleaning/debridement, stimulates healing, and uses US to propel saline across a wound?

Answer 5

NCLFUS (Noncontact Low-Freq US)

Question 6

What therapy uses high freq electromagnetic energy to generate heat in body tissues and was a popular modality 20 years ago?

Answer 6

Diathermy

Question 7

T/F: Electromagnetic energy travels at the speed of sound.

Answer 7

False; speed of light

Question 8

What is the most common type of diathermy unit?

Answer 8

shortwave diathermy

Question 9

T/F: Microwave Diathermy is safer than shortwave diathermy and it penetrates deeper.

Answer 9

False; microwave is not as deep and is not as safe, regulated by FCC

Question 10

Due to the kinetic energy caused by dipole rotation and ionic oscillation, thermal energy is created. What modality does this describe?

Answer 10

Shortwave diathermy

Question 11

What areas are recommended for Capacitive Technique?

Answer 11

areas (or patients) with low subQ fat, i.e. knee, foot, hand, shoulder

Question 12

When is inductive (magnetic) technique recommended?

Answer 12

patients with more subQ fat or areas that are deeper like tendon and joints

Question 13

Name The 4 laws:

1) Dose vs Response
2) Absorption vs therapeutic effect
3) Dose vs divergence
4) Angle of application

Answer 13

1) Arndt-Schultz Law
2) Groutthuss-Draper Law
3) Inverse Square Law
4) Lambert’s Cosine Law

Question 14

T/F: According to Lambert’s Cosine Law, the greater the angle of application, the greater the amount of energy absorbed.

Answer 14

False; increased angle=reduced energy

think ricochet or refraction

Question 15

What type of injuries/pain would be indications for diathermy?

Answer 15

musculoskeletal injuries/pain