Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 May 3;6:25388. doi: 10.1038/srep25388

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2016, Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

Influence of abrupt changes in cardiac frequency on QT interval and RR intervals in 5 mice before (black) and after (red points) IP injection of norepinephrine (A) or nitroprusside (B). Open circles give the mean RR and QT ± SD and filled circles the individual measurements. Left, typical evolution of QT (red) and RR (black) intervals just before and in the minute following the injection; middle, raw QT-RR relationship; right, QTc-RR relationship. Evolution of the QT and QTc intervals according to the RR intervals over-time. QT (blue points), QTc (red points) and RR intervals (black points) were measured 5 minutes before and 15 minutes after injection of nitroprusside (C) or Epinephrine (D). QTc were calculated according to Mitchell’s formula.