Podcast
Questions and Answers
Mercury is used in thermometers because it has a high adhesion force with the wall of the glass.
Mercury is used in thermometers because it has a high adhesion force with the wall of the glass.
False (B)
Thermography is a process that produces a thermal image of the body surface using visible radiation.
Thermography is a process that produces a thermal image of the body surface using visible radiation.
False (B)
Thermograms are normally displayed on a computer screen.
Thermograms are normally displayed on a computer screen.
False (B)
Thermistors can measure temperature changes of 0.1°C.
Thermistors can measure temperature changes of 0.1°C.
Thermistors have a significant effect on the temperature of the surrounding tissue.
Thermistors have a significant effect on the temperature of the surrounding tissue.
Thermistors are used to monitor the heart rate of patients.
Thermistors are used to monitor the heart rate of patients.
Man-made sources of radiant heat include wire coils and 500W incandescent lamps.
Man-made sources of radiant heat include wire coils and 500W incandescent lamps.
Radiant heat can increase the surface temperature by penetrating the skin up to 5mm.
Radiant heat can increase the surface temperature by penetrating the skin up to 5mm.
Ultrasonic waves are a type of electromagnetic wave.
Ultrasonic waves are a type of electromagnetic wave.
Radiant heat is used for surface heating of the body.
Radiant heat is used for surface heating of the body.
Ultrasonic waves are more effective at depositing heat in soft tissues than in bones.
Ultrasonic waves are more effective at depositing heat in soft tissues than in bones.
Excessive exposure to radiant heat can cause swelling and erythematic.
Excessive exposure to radiant heat can cause swelling and erythematic.
