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 ......
ARTICLE |

How Much Blood Makes The Cerebrospinal Fluid Bloody?

Bernard M. Patten, MD
JAMA. 1968;206(2):378. doi:10.1001/jama.1968.03150020094033.
Text Size: A A A
Published online

ABSTRACT

To the Editor:—  Blood in the cerebrospinal fluid in the absence of a traumatic lumbar puncture is always abnormal. Textbooks do not reveal studies correlating the concentration of red blood cells and the macroscopic appearance of the spinal fluid. This information is of importance when the physician must decide on therapy or emergency diagnostic procedures such as arteriography before the official laboratory enumeration of cells is known. A guide, however imprecise, which estimates cell counts at the bedside will give the physician useful information.

Method:—  Serial dilutions of fresh whole blood were made in human cerebrospinal fluid which contained no cells, a protein value of 23 mg/100 ml and a glucose value of 88 mg/100 ml. Two tubes of plain cerebrospinal fluid and one tube of distilled water served as controls. The tubes were randomized according to a table of random numbers. Seventeen residents at the Neurological Institute of New

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

Figures

Tables

References

Letters

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.

Multimedia

* * SCHEDULED MAINTENANCE * *

Our websites may be periodically unavailable between midnight and 04:00 ET Thursday, July 10th, for regularly scheduled maintenance.

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();