0
We're unable to sign you in at this time. Please try again in a few minutes.
Retry
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
Retry
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
ARTICLE |

THE EFFECT OF DYSPNEA VARIOUSLY PRODUCED ON THE VITAL CAPACITY OF THE LUNGS

M. JOANNIDES, M.D.
Arch Intern Med (Chic). 1924;33(1):145-154. doi:10.1001/archinte.1924.00110250148015.
Text Size: A A A
Published online

Dyspnea is one of the most constant findings in patients with heart disease. In these cases, Peabody and Wentworth1 found that there is a diminution in the vital capacity of the lungs, and this diminution varies directly with the degree of dyspnea. These authors, however, attribute this diminution in vital capacity to mechanical factors, such as rigidity of the bony framework of the chest, ankylosis of the costal joints, diminution in the elasticity of the lung tissue, accumulation of fluids in the pleura, enlargement of the heart, enlargement of the liver, etc. These conditions, when present, undoubtedly cause a decrease in the vital capacity of the lungs. There are cases, however, in which such conditions are absent, but still the vital capacity of the lungs is decreased. Peters and Barr2 report that the decrease in the vital capacity in heart disease does not depend primarily on anatomic factors, because of

Topics

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

First Page Preview

View Large
First page PDF preview

Figures

Tables

References

Correspondence

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
Submit a Comment

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();