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 |

Sequential Changes Evoked by Chlorothiazide in Hypertensive Patients

Arch Intern Med. 1960;106(3):316-320. doi:10.1001/archinte.1960.03820030004002.
Text Size: A A A
Published online


Enhanced responsiveness to ganglioplegic drugs occurring during short-term treatment with chlorothiazide has been attributed to increased vasomotor tone evoked by oligemia.1 Diuretic-induced oligemia also seems responsible for increased depressor responses to trimethapan (Arfonad) and decreased pressor responses to norepinephrine.2 Chlorothiazide alone can lower arterial pressure in some hypertensive patients,1-3 and this effect may result from a decrease of plasma volume. This report describes the oligemic and antihypertensive effects of the diuretic in hypertensive patients receiving the drug for varying periods. The results support the suggestion 1 that decreases of arterial pressure observed during short-term diuretic therapy result from decreases of plasma volume and not from a specific antihypertensive effect.

Methods  Studies were performed in 17 hypertensive patients hospitalized in the Research Ward of the Cleveland Clinic Hospital. Fifteen received a 100 mEq. sodium diet, and two—who had previously suffered from congestive cardiac failure—continued to take a 55


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.

16 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.