Quiz 3 Flashcards
To evaluate ______ of the hydrostatic weighing test, you will have another person measure on the same client
Objectivity
______ describes the amount air trapped in lungs after a maximal expiration
Residual volume
The assumed amount of gas trapped in the gastrointestinal system when you use hydrostatic weighing method to assess body composition is approximately
0.1 L
Hydrodensitometry uses a underwater weighing method from air volume displaced by the body when fully submerged
False
The archimedes principle describes that the buoyant force is equal to the weight of the displaced water
True
Body density from the hydrostatic weighing test is calculated by the body weight measured in the air minus the body weight measured in the water divided by density of water
False - this is body volume
It is assumed that proportions of components in fat free mass vary from person to person when you use densitometry
False - instead is constant
All conditions (e.g. body weight, height, water temperature, and residual volume) are the same. If underwater weight is measured higher than what it is, the estimated % body fat will be lower than the true value
True
Air displacement plethysmography technique using bod pod follows poissons law because of isothermal condition that the chamber creates
False
When your huff is too strong during thoracic lung volume measurement using bod pod, this means airway pressure reading is HIGH
True
Adibatic conditions describes when the temperature of air does not remain constant as the volume changes
True
When using bod pod, height and weight are needed to calculate body surface area
True
Using bod pod, body volume can be overestimated if there is a greater body surface area from long hair
False
Using bod pod, % body fat is calculated based on Siri equation following a two component model
True
