Interventions Pre-Test

When would you choose to use heat over ice?

• swelling caused by acute injury

• muscle tightness and soreness

• management of acute inflammation process

• pain after recent ankle sprain

Which mode of heat transfer is occurring with the use of a hot pack?

• conduction

• convection

• conversion

• radiation

Answer explanation

Conduction is through direct contact, which is occurring with a hot pack.

Refer to thermotherapy lecture to review modes of heat transfer if needed.

Tags

NGSS.HS-PS3-4

During the inflammatory stage, which response involves platelets creating temporary clotting?

• Vascular

• Hemostatic

• Cellular

• Immune

Answer explanation

Temporary clotting occurs during the hemostatic response in the inflammation phase, collagen synthesis and lattice formation occurs during proliferative phase of healing.

Refer to inflammation lecture.

When a wound can heal without wound contraction, what kind of healing is occuring?

• None

• Primary Intention

• Secondary Intention

• Indirect Union

Tags

NGSS.HS-LS1-4

Which setting for ultrasound is used to decide the effects of thermal or non-thermal effects?

• Duty Cycle

• Frequency

• Intensity

• Duration

Answer explanation

Duty Cycle = thermal/non thermal

Frequency = tissue depth

Intensity = strength (varies on tolerance or tissue depth)

Duration = time depending on area being treated

Tags

NGSS.HS-PS3-4

Which neuron is usually depolarized 3rd in the body with increasing current?

• A-delta

• A-gamma

• A-beta

• A-alpha

Answer explanation

Order in the body:

(1) A-Beta

(2) A-Alpha

(3) A-Delta

(4) A-Gamma

Which neuron is being targeted to reduce chronic pain?

• A-beta

• A-delta

• A-alpha

• A-gamma

Answer explanation

A-beta = acute pain

A-delta =chronic pain

A-alpha = increasing muscle strength

If you wanted to address pain with TENS to depolarize A-beta fibers, what example would you use to explain to your patient what is occurring?

• Gate Theory

• Runners High

Answer explanation

A-beta = acute pain so you would address Gate theory.

This type of question requires you to know what is being depolarized and how to best educate your patients.

When applying strong, low-rate TENS - what pulse duration is being used?

• 200 us

• 10 pps

• 80 us

• 150 pps

Answer explanation

To answer this question correctly, it requires you to know that strong low-rate TENS is used for chronic pain vs High-Rate for Acute pain. You also need to know the difference between pulse duration and pulse rate. If you know the graph and what fibers are being addressed, you would know that 200 us is the correct answer

OR

if you memorized the settings

Which fibers are being recruited first when using externally stimulated contractions?

• Fast Twitch

• Slow Twitch

• Oxidative

• Low Force

Answer explanation

Understand the difference between motor unit recruitment for voluntary contractions vs stimulated contractions.