HYPOTENSION AND VITAL CAPACITY

The vital capacity of children.

In 1846 Hutchinson published an exhaustive treatise on pulmonary function, giving an historical review and describing in detail methods for measuring pulmonary ventilation using, apparently for the first time, a spirometer. Most investigators since then have followed Hutchinson's lead and used spirometers to record their measurements. The following simple methods of measurement have been those ...

The Vital Capacity of the Bengalees

The vital capacity of individuals has, in recent years, been attracting considerable attention of medical practitioners regarding the diagnosis and prognosis in various diseases of the heart and lungs. Paramount importance has also been laid on selecting candidates for the air service where a minimum standard has been fixed for admission of cadets. In diseases of the lungs, specially in pulmona...

Optoelectronic vital capacity measurement for restrictive diseases.

OBJECTIVE To determine whether optoelectronic plethysmography accurately evaluated vital capacity (VC) in patients with respiratory muscle dysfunction of variable severity, including those with paradoxical abdominal movements. METHODS In 20 subjects, VC was measured in the supine position using both spirometry and optoelectronic plethysmography (6 optoelectronic cameras and 52 reflective mark...

A timed vital capacity recording device.

Since Gaensler’s article’ appeared in 1951, the value of the “Timed Vital Capacity” test has been eminently confirmed. With one test, the presence of both restrictive and obstructive ventilating defects is demonstrated. Here presented is a device that has been used for four years as the first step in the evaluation of lung function of all candidates considered for pulmonary surgery at the Glenn...

Forced Vital Capacity (FVC) and Forced Vital Capacity in 1 Second (FEV1) of Apparently Healthy Non-smoker Adult Obese