The full content of Annals is available to subscribers

Subscribe/Learn More  >
Articles |

Cardiac Arrest and Blood Ionized Calcium Levels

Philip Urban, MD; Daniel Scheidegger, MD; Barbara Buchmann; and Daniel Barth, MD
[+] Article, Author, and Disclosure Information

Requests for Reprints: Philip Urban, MD, Centre de Cardiologie, Hopital Cantonal Universitaire, 1211 Geneva 11, Switzerland.

Current Author Addresses: Drs. Urban, Scheidegger, and Barth, and Ms. Buchmann, Surgical Intensive Care Unit, Department of Anesthesia, Kantonsspital, 4031 Basel, Switzerland.

© 1988 American College of PhysiciansAmerican College of Physicians

Ann Intern Med. 1988;109(2):110-113. doi:10.7326/0003-4819-109-2-110
Text Size: A A A

Blood ionized and total calcium levels, and pH values were obtained in 12 patients who were being ventilated and given external cardiac massage after having had an out-of-hospital cardiac arrest. On admission they had marked ionized hypocalcemia, with mean ionized calcium levels of 0.67 ± 0.22 mmo1/L, (range, 0.26 to 0.89), but normal total calcium levels. There was a positive correlation between pH and ionized calcium levels (r = 0.71). Of the six patients who were successfully resuscitated, four were discharged and two died; the other six could not be resuscitated and died. By comparison, ionized and total calcium levels obtained within 3 minutes of cardiac arrest were normal in 9 patients who had cardiac arrests in the intensive care unit or during surgery. All were discharged. These data are the first to document the occurrence of severe ionized hypocalcemia after out-of-hospital cardiac arrest. Hypocalcemia appears to be time-dependent and due essentially to extracellular complexing of calcium. Further work is needed to determine whether patients who have out-of-hospital cardiac arrests can benefit from calcium administration.





Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).


Submit a Comment/Letter
Submit a Comment/Letter

Summary for Patients

Clinical Slide Sets

Terms of Use

The In the Clinic® slide sets are owned and copyrighted by the American College of Physicians (ACP). All text, graphics, trademarks, and other intellectual property incorporated into the slide sets remain the sole and exclusive property of the ACP. The slide sets may be used only by the person who downloads or purchases them and only for the purpose of presenting them during not-for-profit educational activities. Users may incorporate the entire slide set or selected individual slides into their own teaching presentations but may not alter the content of the slides in any way or remove the ACP copyright notice. Users may make print copies for use as hand-outs for the audience the user is personally addressing but may not otherwise reproduce or distribute the slides by any means or media, including but not limited to sending them as e-mail attachments, posting them on Internet or Intranet sites, publishing them in meeting proceedings, or making them available for sale or distribution in any unauthorized form, without the express written permission of the ACP. Unauthorized use of the In the Clinic slide sets will constitute copyright infringement.


Buy Now for $42.00

to gain full access to the content and tools.

Want to Subscribe?

Learn more about subscription options

Related Articles
Topic Collections
PubMed Articles
Forgot your password?
Enter your username and email address. We'll send you a reminder to the email address on record.