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 ......
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 54.227.141.230. Please contact the publisher to request reinstatement.
Article |

Cardiovascular Adjustments in Normal Newborn Lambs

M. T. STAHLMAN, M.D.; R. E. MERRILL, M.D.; V. S. LE QUIRE, M.D.
Am J Dis Child. 1962;104(4):360-365. doi:10.1001/archpedi.1962.02080030362007.
Text Size: A A A
Published online

The fetal and newborn lamb has been the subject of a great deal of experimental investigation, and the results obtained from these studies have been used to make analogies with human newborns where direct observations have been few.1,2 Many of the observations on lambs have been made under experimental conditions which undoubtedly have changed the normal resting physiological state, and the usual sequence of perinatal events may have, therefore, been interrupted or distorted.

Indicator-dilution techniques of studying the cardiovascular system can be performed in the intact, unanesthetized animal or man with minimal disturbance of the hemodynamics. These techniques were chosen for the study of the neonatal hemodynamic adjustments of normal unanesthetized lambs lying quietly either sleeping or sucking on a sugar nipple. These same techniques may be directly applicable to the study of human newborn infants with less risk than cineangiography.

Methods and Materials  Nine normal lambs were studied

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();