We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
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 |

Radioactivity in Man: Whole Body Counting and Effects of Internal Gammaray Emitting Radioisotopes.

William H. Wehrmacher, MD
Arch Intern Med. 1965;116(4):625. doi:10.1001/archinte.1965.03870040139034.
Text Size: A A A
Published online


Measurement of the radioactivity of man by whole body counting will give considerable information about body composition and metabolism which either cannot be determined by other means or can be determined only with greater hazard or difficulty. Exchangeable sodium can be measured repetitively for as long as four months after injection of a single tracer dose; thyroid uptake can be measured with a small fraction of conventional doses; the whole body content of a nuclide can be measured, as well as blood levels, respiratory, urinary, and fecal excretion rates and differences in concentration in different organs and within a single organ. The greatest value of in vivo counting techniques may be the calibration of other techniques of bioassay such as breath and urine measurements, so that the counting of excretory product as a function of time can be used as an index of the total body burden of the isotope


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview





Also 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.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
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.


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

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

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