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 |


E. H. Boyer, M.D.
JAMA. 1933;100(17):1358-1359. doi:10.1001/jama.1933.02740170056027.
Text Size: A A A
Published online


To the Editor:  —In the editorial comment on serum amylase (The Journal, March 11) appears the following: "Chemical examination of the blood... has displaced the older chemical examination of the urine in several directions, such as for the study of the diabetic state." Such a statement is not in accord with the facts. When studying the diabetic state the physician is primarily concerned with the metabolism of carbohydrate and the ability of the patient to utilize the carbohydrate ingested. Blood sugar estimations are of occasional importance in determining the existence of the diabetic state; i. e., in differentiating true diabetes from nondiabetic glycosuria. Occasionally the renal threshold for dextrose is so high that glycosuria does not occur in the diabetic state, so that blood sugar determinations afford the best means of ascertaining the individual's carbohydrate metabolism. But after the diagnosis of diabetes has been established and the renal threshold value


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.