Lung function test. Elderly man blows into the mouthpiece of a vitalograph, which measures lung (pulmonary) function. A nurse checks his results on a

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Lung function test. Elderly man blows into the mouthpiece of a vitalograph, which measures lung (pulmonary) function. A nurse checks his results on a computer screen. The vitalograph device measures various aspects of lung function such as vital capacity, forced vital capacity and forced expiratory rate. The age, height and sex of the patient is entered into the vitalograph, which calculates the theoretical values for the test. The device then displays the patient's performance as a percentage of the theoretical value.

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Size: 3525px × 2425px
Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: body, elderly, function, healthcare, lung, man, measurement, medical, medicine, patient, physiological, physiology, pulmonary, respiratory, test, testing, vitalograph, vitalogrph