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 ......
Editor's Correspondence |

Evaluation of a Blood Pressure Monitoring Device

Myron L. Cohen, PhD; Alan S. Berson, PhD; Bruce Alpert, MD; Richard P. Avoy, MS
Arch Intern Med. 1999;159(4):407. doi:.
Text Size: A A A
Published online


In a recent article in the ARCHIVES, Shuler et al1 discuss a series of tests that were performed on the IVAC model 4200 noninvasive blood pressure monitor (IVAC Corporation, San Diego, Calif) in order to assess this monitor's accuracy. The authors used the Association for the Advancement of Medical Instrumentation (AAMI) SP-10 standard.2 Unfortunately, they chose to use the 1987 version of this standard rather than the current 1992 standard.3 The 1987 recommendation was to use the average of 3 or more recordings for each subject as the unit of comparison. The present, 1992, recommendations provide for the separate analysis of all readings. Pooling of data was eliminated. As one would expect, the use of the AAMI SP-10 standard calls for the following of a strictly prescribed measurement test protocol. Without following this protocol, no valid inferences can be made as to how the device undergoing testing performed. A test protocol calling for the same sphygmomanometer-cuff reference standard conditions when examining both "criterion standard" and "device in question" was not followed. The authors themselves have commented that testing was performed on patients with the use of inappropriate cuff sizes. The results obtained from these tests must be considered inaccurate owing to cuff selection. Thus, no comment as to the accuracy of the device being tested can be made.

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.

Articles Related By Topic
Related Collections
PubMed Articles