Physical Agent Modalities Quiz!

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Physical Agent Modalities Quiz! - Quiz

In Physiotherapy, physical therapists are taught about the therapeutic implementation of several physical agents that are called modalities. Generally, these agents are thermal, electrical, sound, light and mechanical. This quiz has been developed to test your knowledge of Physical agent modalities, also known as P. A. Ms. So, let's try out the quiz. Good luck!


Questions and Answers
  • 1. 

    Thermotherapy:The two law's of heat transfer are:

    • A.

      Heat may be added of removed from the body

    • B.

      Heat must be 180 degrees in order to have a theraputic effect.

    • C.

      There must exist a signifigant tempurature difference between the agent and the body and a suffiecient duration of application to produce a thermal effect

    Correct Answer(s)
    A. Heat may be added of removed from the body
    C. There must exist a signifigant tempurature difference between the agent and the body and a suffiecient duration of application to produce a thermal effect
    Explanation
    The explanation for the given correct answer is that thermotherapy involves the application of heat to the body in order to produce a therapeutic effect. According to the two laws of heat transfer, heat can be either added or removed from the body. In the case of thermotherapy, heat is added to the body. Additionally, in order for thermotherapy to be effective, there must be a significant temperature difference between the heat source (agent) and the body, and the application of heat must be of sufficient duration to produce a thermal effect.

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  • 2. 

    Types of heat transfer: Transfer of heat through direct contact with its source

    • A.

      Convection

    • B.

      Conduction

    • C.

      Electrical

    • D.

      Radiation

    Correct Answer
    B. Conduction
    Explanation
    Conduction is the transfer of heat through direct contact with its source. It occurs when two objects at different temperatures come into direct contact with each other, and the heat energy is transferred from the hotter object to the colder one. In this process, the molecules in the hotter object gain energy and vibrate more vigorously, causing the adjacent molecules in the colder object to also vibrate and increase in temperature. This transfer of heat continues until both objects reach thermal equilibrium. Conduction is an important mechanism of heat transfer in solids and can also occur to a lesser extent in liquids and gases.

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  • 3. 

    Types of heat transfer: Transfer of heat via medium such as the movement of air or water

    • A.

      Convection

    • B.

      Electrical

    • C.

      Conduction

    • D.

      Radiation

    Correct Answer
    A. Convection
    Explanation
    Convection is the correct answer because it refers to the transfer of heat through the movement of a medium, such as air or water. In convection, heat is transferred when the particles in the medium gain energy, become less dense, rise, and are replaced by cooler particles. This process creates a continuous circulation of heat within the medium. Convection is commonly observed in everyday life, such as when warm air rises and cool air sinks, creating air currents and breezes.

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  • 4. 

    Types of heat transfer: Transfer of heat developed by passage of sound or electrical current through the tissues

    • A.

      Radiation

    • B.

      Conversion

    • C.

      Convection

    • D.

      Conduction

    • E.

      Electrical

    Correct Answer
    B. Conversion
    Explanation
    Conversion refers to the transfer of heat developed by the passage of sound or electrical current through the tissues. This type of heat transfer occurs when energy is converted from one form to another, such as from electrical energy to heat energy. It is different from radiation, convection, and conduction, which involve the transfer of heat through different mechanisms. Electrical transfer, on the other hand, specifically refers to the transfer of heat through electrical currents.

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  • 5. 

    Type of heat transfer: the transfer of heat or energy throughspace by electromagnetic waves.

    • A.

      Conversion

    • B.

      Radiation

    • C.

      Convection

    • D.

      Conduction

    Correct Answer
    B. Radiation
    Explanation
    Radiation is the correct answer because it refers to the transfer of heat or energy through space by electromagnetic waves. This type of heat transfer does not require any medium and can occur even in a vacuum. Examples of radiation include the heat we receive from the sun or the warmth we feel when standing near a fire.

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  • 6. 

    Physiological responses to heat: heat increases the extensibilitu of collagen tissue and decreases joint stiffness. Achievement of this goal is dependent of all but one of the following factors. which is NOT a factor.

    • A.

      Amount of time the tissue is heated

    • B.

      The type modality used in treatment

    • C.

      The depth of the tissue heated

    • D.

      The degree of stretch applied after heat

    • E.

      The degree of heat achieved

    Correct Answer
    B. The type modality used in treatment
    Explanation
    The type modality used in treatment is not a factor that affects the achievement of increasing the extensibility of collagen tissue and decreasing joint stiffness in response to heat.

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  • 7. 

    Physiological responses to heat: true or false and if false pick the correct statement. "Heat assists with pain relief and reduces muscle spasms.the precise mechanism is fully understood and appears to be related to the ability of heat to alter nerve ending, decrease the pain threshold and change the firing rates of muscle spasms

    • A.

      True

    • B.

      False...The correct statement is: "Heat assists with pain relief and reduces muscle spasms.the precise mechanism is not fully understood and appears to be related to the ability of heat to alter nerve conduction velocity, Increase the pain threshold and change the firing rates of muscle spindles.

    • C.

      If false, The correct statement is: "Heat assists with pain relief and reduces muscle spasms.the precise mechanism is not fully understood and appears to be related to the ability of heat to alter nerve ending velocity, Increase the pain threshold and change the firing rates of muscle spasms

    Correct Answer
    B. False...The correct statement is: "Heat assists with pain relief and reduces muscle spasms.the precise mechanism is not fully understood and appears to be related to the ability of heat to alter nerve conduction velocity, Increase the pain threshold and change the firing rates of muscle spindles.
    Explanation
    The correct statement is that the precise mechanism of heat's effect on pain relief and muscle spasms is not fully understood. However, it is believed to be related to heat's ability to alter nerve conduction velocity, increase the pain threshold, and change the firing rates of muscle spindles.

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  • 8. 

    Physiological responses to heat: true or false and if false pick the correct statement. heat increase blood flow

    • A.

      True

    • B.

      False, heat decreases blood flow

    • C.

      False heat stops blood flow

    Correct Answer
    A. True
    Explanation
    Heat increases blood flow because when the body is exposed to heat, the blood vessels near the skin's surface dilate (expand), allowing more blood to flow through them. This increased blood flow helps to dissipate heat from the body and regulate its temperature.

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  • 9. 

    Physiological responses to heat: true or false and if false pick the correct statement. Control mechanisims for flow to different structures are different. Example, heat applied to the skin results in vasodilation of the cutaneous vessels.

    • A.

      True

    • B.

      False, Control mechanisims for flow to different structures are different. Example, heat applied to the skin results in vasoconstriction of the cutaneous vessels.

    • C.

      False, Control mechanisims for flow to different structures are same. Example, heat applied to the skin results in vasodilation of the cutaneous vessels.

    Correct Answer
    A. True
    Explanation
    The correct statement is that control mechanisms for flow to different structures are different. For example, heat applied to the skin results in vasodilation of the cutaneous vessels. This means that when heat is applied to the skin, the blood vessels in the skin widen, allowing more blood flow to the area. This is a physiological response to heat and helps to dissipate the heat from the body.

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  • 10. 

    Physiological responses to heat: true or false: heat produces a mild inflammatory reaction

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Heat does indeed produce a mild inflammatory reaction in the body. When exposed to heat, the blood vessels in the affected area dilate, allowing more blood to flow to the area. This increased blood flow leads to redness, swelling, and warmth in the area, which are all characteristic signs of inflammation. Additionally, the body may release inflammatory mediators in response to heat, further contributing to the inflammatory response. Therefore, the statement "heat produces a mild inflammatory reaction" is true.

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  • 11. 

    Physiological responses to heat: true or false Heat decreases chemical activity in cells and the metabolic rate

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Heat increases chemical activity in cells and the metabolic rate

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  • 12. 

    Alright, now, all but one is considered a superficial heating agent, which one is NOT a superficial heating agent.

    • A.

      Parraffin bath

    • B.

      Ultrasound

    • C.

      Hotpacks

    • D.

      Fluidiotherapy

    • E.

      Whirlpool/ hydrotherapy

    Correct Answer
    B. Ultrasound
    Explanation
    Ultrasound is not considered a superficial heating agent because it uses high-frequency sound waves to generate heat deep within the tissues, rather than just heating the surface. In contrast, paraffin bath, hotpacks, fluidiotherapy, and whirlpool/hydrotherapy all provide superficial heating by applying heat directly to the surface of the body.

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  • 13. 

    -Changes in surface tissue temperature -Elevates skin and tissue temperature to depth of 1 cm increases blood supply -muscle temperature at depths 1-2 requires longer duration of exposure -fat provides insulation against heat and has low thermal conductivity -joints of hand and wrist with little soft tissue( intra-articular tempuratures can be raised.

    • A.

      Superfical heating agents

    • B.

      Deep heating agents

    Correct Answer
    A. Superfical heating agents
    Explanation
    Superficial heating agents are able to elevate the skin and tissue temperature to a depth of 1 cm. This increase in temperature leads to an increase in blood supply to the area. However, it is important to note that muscle temperature at depths of 1-2 cm requires a longer duration of exposure to the heating agent. Additionally, fat provides insulation against heat and has low thermal conductivity, which means that it may take longer for the heat to penetrate through fatty tissues. Finally, the joints of the hand and wrist, which have little soft tissue, can have their intra-articular temperatures raised by superficial heating agents.

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  • 14. 

    Produces a temperature elevation fo 35 cm -Does not produce overheating of skin and subcutaneous tissue -Aid in problems that limit ROM due to increase in periaticular soft tissue, skeletal muscle spasms not of acute origin, and pain secondary to chronic soft tissue dysfunction

    • A.

      Superficial heating Agents

    • B.

      Deep heating agents

    Correct Answer
    B. Deep heating agents
    Explanation
    Deep heating agents are the correct answer because they can produce a temperature elevation of 35 cm without causing overheating of the skin and subcutaneous tissue. They are also effective in aiding problems that limit range of motion, such as periarticular soft tissue issues, skeletal muscle spasms, and chronic soft tissue dysfunction. Superficial heating agents may not be able to reach deep enough to provide the same level of therapeutic benefit.

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  • 15. 

    Types of deep heating agents include: ________,_________ and _______

    • A.

      Hotpacks

    • B.

      Ultrasound

    • C.

      Diathermy

    • D.

      Phonophoresis

    • E.

      Fluidotherapy

    Correct Answer(s)
    B. Ultrasound
    C. Diathermy
    D. Phonophoresis
    Explanation
    The correct answer is ultrasound, diathermy, and phonophoresis. These are all types of deep heating agents commonly used in physical therapy. Ultrasound uses high-frequency sound waves to generate heat and promote tissue healing. Diathermy involves the use of electromagnetic energy to produce heat deep within the tissues. Phonophoresis combines ultrasound with the application of medication to enhance the absorption of the medication into the tissues. These deep heating agents are used to relieve pain, increase blood flow, and promote tissue repair.

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  • 16. 

    Name that therapy: Delivers moist heat,usually made of canvas w/ silica gel,immersed in temperature between 160 - 170 retains heat for 30 minutes: Technique: wrap in six to eight layers of towels, should cover area, remove 5 minutes after for heat inspection. treatment between twenty to thirty min

    • A.

      Hydrotherapy (whirlpool)

    • B.

      Hot packs

    • C.

      Ice massage

    • D.

      Paraffin bath

    • E.

      Fluidotherapy

    Correct Answer
    B. Hot packs
    Explanation
    Hot packs are a form of therapy that delivers moist heat to a specific area of the body. They are usually made of canvas filled with silica gel, which can be immersed in a temperature between 160-170 degrees Fahrenheit. The hot pack retains heat for approximately 30 minutes. The technique for using hot packs involves wrapping them in six to eight layers of towels to ensure proper insulation and then applying them to the desired area. The hot packs should be left on for a treatment time of twenty to thirty minutes and then removed for heat inspection after five minutes.

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  • 17. 

    Name that therapy: Most appropriate for small areas of painful muscle gaurding, acute injury triger pionts: -utilizez large icecubes which can be frozen in papercups -Skin Temperature does not drop below 15 C. making risk of damaging tissue minimal Technique: rubbed around painful area begining peripherally and working towards site of injury. 4 sensations include: intense cold, burning and aching , anaesthetic: w/i 5 - 10 minutes.

    • A.

      Cold packs

    • B.

      Coldbaths

    • C.

      Ice massage

    Correct Answer
    C. Ice massage
    Explanation
    Ice massage is the most appropriate therapy for small areas of painful muscle guarding and acute injury trigger points. It involves using large ice cubes frozen in paper cups to rub around the painful area, starting from the periphery and working towards the site of injury. Ice massage provides four sensations, including intense cold, burning, aching, and anesthesia, which can be felt within 5-10 minutes. The technique is safe as the skin temperature does not drop below 15°C, minimizing the risk of tissue damage.

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  • 18. 

    Consist of a tank containing mixture of parraffin and mineral oil tempurature is maintained at 125 - 127 retains perspiration and softens skin. dip and wrap hands and wrists are dipped in and out of tank 8-10 times solid glove formed wrapped in a towel or plastic bag 20 minutes Dip and reimmerse: back in wax most vigorus response with heat and stretch methods

    • A.

      Ultrasound

    • B.

      Parriffin bath

    • C.

      Whirlpool

    • D.

      Hotpack

    • E.

      Fluidiotherapy

    Correct Answer
    B. Parriffin bath
    Explanation
    The correct answer is "paraffin bath" because the given explanation describes a process where hands and wrists are dipped in and out of a tank containing a mixture of paraffin and mineral oil. This process helps retain perspiration and soften the skin.

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  • 19. 

    Finally divided cellulose particles air is circulated particles are suspended in air similar to liquid viscosity is low heat transfer mechanism occures through dry convection higher tissue temps

    • A.

      Cold bath

    • B.

      Fluidotherapy

    • C.

      Jobs compression

    • D.

      Ultrasound

    Correct Answer
    B. Fluidotherapy
    Explanation
    Fluidotherapy is a therapeutic treatment that involves circulating warm air and suspended cellulose particles around the patient. The cellulose particles create a similar effect to a liquid, with low viscosity, allowing for better heat transfer through dry convection. This treatment can result in higher tissue temperatures, which can be beneficial for various conditions. The given information about finally divided cellulose particles, air circulation, particle suspension, low viscosity, and heat transfer mechanism through dry convection aligns with the concept of fluidotherapy, making it the correct answer.

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