plethysmograph

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plethysmograph

 [plĕ-thiz´mo-graf]
any device for measuring and recording variations in the volume of an organ, part, or limb.
body plethysmograph a device used in pulmonary function tests to measure parameters such as functional residual capacity (FRC) and lung-thorax compliance (CLT). It consists of a large box in which the subject can be sealed so that volume of the thorax can be determined from pressure changes in the box.

ple·thys·mo·graph

(ple-thiz'mō-graf),
A device for measuring and recording changes in volume of a part, organ, or whole body.
[G. plēthysmos, increase, + graphō, to write]

plethysmograph

/ple·thys·mo·graph/ (plĕ-thiz´mo-grah) an instrument for recording variations in volume of an organ, part, or limb.

plethysmograph

(plĕ-thĭz′mə-grăf′, plə-)
n.
An instrument that measures variations in the size of an organ or body part on the basis of the amount of blood passing through or present in the part.

ple·thys′mo·graph′ic adj.
pleth′ys·mog′ra·phy (plĕth′ĭz-mŏg′rə-fē) n.

plethysmograph

[pləthiz′məgraf′]
an instrument for measuring and recording changes in the size and volume of extremities and organs by measuring changes in their blood volume. plethysmographic, adj.

ple·thys·mo·graph

(plĕ-thiz'mŏ-graf)
A device for measuring and recording changes in volume of a part, organ, or whole body.
[G. plēthysmos, increase, + graphō, to write]

plethysmograph

any device for measuring and recording variations in the volume of an organ, part or limb.

body plethysmograph
a device used in pulmonary function tests to measure parameters such as functional residual capacity (FRC) and lung-thorax compliance (CLT). It consists of a large box in which the subject can be sealed so that volume of the thorax can be determined from pressure changes in the box while the lung volume and gas pressure in the lungs are measured by spirometry.
References in periodicals archive ?
After inhalation of tiotropium, plethysmographic measurements revealed that FVC p, PEF p increased significantly, while [FEV.
2] probe on the dependent limb can obtund the amplitude of a plethysmographic waveform (2).
Non-invasive CO monitoring using an inflatable cuff with an in-built photoelectric plethysmographic device provides continuous ABP measurement (13) based on the development of a pulsatile discharge from the arterial walls in the finger.
Plethysmographic estimation of thoracic gas volume in apneic mice.
2010) reported a case of occupational exposure resulting in vasoconstriction in the feet but not the hands; diagnostic testing indicated normal ankle brachial indices but reduced digital plethysmographic waveforms in the toes when exposed to cold.
Both spirometric as well as plethysmographic investigations showed clinically relevant improvement of lung function parameters after therapy with an ivy leaves dry extract preparation (drug to extract ratio (DER) = 5-7.
also announced that its patented, noninvasive, inductive plethysmographic based, cardiac monitoring device has been tested in critically ill patients and compared to cardiac output measurements obtained by a thermodilution method with a Swan Ganz catheter.
The effectiveness of such procedure should be assessed controlling the right femoral pulse or to use of the plethysmographic wave on the right foot.
With the pressure ([DELTA]PA) and volume ([DELTA]VA) changes recorded during plethysmographic maneuver, the equation used for determining VTG becomes:
2003) Spirometric and plethysmographic assessment of upper airway obstruction in laryngeal hemiplegia.