Quizzes for Ultrasound & Electrical Modalities

Match the description to the principle set on an electric modality such as TENS of NMES: time on/ time off cycle expressed as a ratio (1:5) or percent (20%) Frequency Duty Cycle Ramp Time (FROM QUIZ 4)

Duty Cycle

Match the main therapeutic purpose to the given modality (2 points) orthotic substitution of a muscle to facilitate performance on a functional activity TENS FES Iontophoresis (FROM QUIZ 4)

FES

Current flows from area of less electron concentration to an area of high electron concentration True False (FROM QUIZ 4)

False

Match the description to the principle set on an electric modality such as TENS of NMES: number of pulses repeated at regular intervals, generally described as pps (pulse per second) Frequency Duty Cycle Ramp Time (FROM QUIZ 4)

Frequency

Match the main therapeutic purpose to the given modality (2 points) treatment of inflammation and/or scar management TENS FES Iontophoresis (FROM QUIZ 4)

Iontophoresis

Match the description to the principle set on an electric modality such as TENS of NMES: time required for current to reach amplitude (gradual more comfortable) Frequency Duty Cycle Ramp Time (FROM QUIZ 4)

Ramp Time

Match the main therapeutic purpose to the given modality (2 points) sensory analgesia to interupt the pain cycle in managing chronic pain TENS FES Iontophoresis (FROM QUIZ 4)

TENS

NMES is intended to be used on muscles that are innervated True False (FROM QUIZ 4)

True

When electrodes are farther apart how does it affect current penetration? a. deeper penetration b. more superficial penetration (FROM QUIZ 4)

a. deeper penetration

Which tissue has the greatest potential to absorb sound waves during ultrasound? CHOOSE TWO a. scar b. bone c. water d. blood (FROM QUIZ 3)

a. scar b. bone

What creates the sound wave in ultrasound? a. vibration of a crystal b. electrical current c. sound from an internal chip d. telephone wire technology (FROM QUIZ 3)

a. vibration of a crystal

How long (in minutes) does the OT have after ultrasound to use the thermal benefits to allow better stretch during PROM or AAROM than without ultrasound? a. 2-4 b. 5-10 c. 15-25 d. 30-40 (FROM QUIZ 3)

b. 5-10

What does research suggest should be used in addition to NMES to create best result to strengthening a. rest for several hours following treatment b. functional goals and movement c. hot pack prior to NMES d. cold pack following NMES (FROM QUIZ 4)

b. functional goals and movement

What will the patient experience during thermal ultrasound a. mild tingling b. gentle warmth c. only the pressure of the sound head and gel (FROM QUIZ 3)

b. gentle warmth

Which of the following treatments includes use of medication? a. NMES b. iontophoresis c. HI Volt d. FES e. TENS (FROM QUIZ 4)

b. iontophoresis

What does the word tetanic refer to ? a. non-noxious stimulation of cutaneous sensory nerves b. synchronous rapid firing resulting in smooth muscle contraction c. number of pulses repeated at regular intervals d. the first muscle twitch (FROM QUIZ 4)

b. synchronous rapid firing resulting in smooth muscle contraction

What is the measurement called that measures the intensity of the beam in ultrasound? a. megahertz (MHz) b. watts per centimeter squared (w/cm2) c. watts of voltage (W) d. percentage (%) (FROM QUIZ 3)

b. watts per centimeter squared (w/cm2)

What will patient report if the electrode has poor contact with the skin during NMES? a. "the machine shut off" b. "I don't feel anything" c. "It feels like a biting or stinging sensation" d. "My muscle isn't contracting" (FROM QUIZ 4)

c. "It feels like a biting or stinging sensation"

What is the depth of penetration when providing ultrasound at 3 MHz a. 0-2.5 inches b. 2.5 - 5 cm c. 0-2.5 cm d. 2.5 - 5 inches (FROM QUIZ 3)

c. 0-2.5 cm

What is phonophoresis? a. thermal ultrasound at 20% b. mechanical ultrasound at 100% c. application of a topical medication using ultrasound d. mechanical ultrasound at 20% (FROM QUIZ 3)

c. application of a topical medication using ultrasound

What happens if you don't move the sound head adequately over the skin? a. heats the periosteum of bone b. reduces the therapeutic dose c. hot spot due to reflected sound waves d. sound waves travel less effectively (FROM QUIZ 3)

c. hot spot due to reflected sound waves

Why is the main reason to use gel lubricant when providing ultrasound a. allows better electrical conductivity b. it improves the patient comfort c. sound waves don't travel well through the air d. it moisturizes patient's skin to allow better penetration (FROM QUIZ 3)

c. sound waves don't travel well through the air

What duty cycle produces a thermal effect of ultrasound? a. 20% b. 40% c. 60% d. 80% e. 100% (FROM QUIZ 3)

e. 100%