Talk:Fick principle

Medicine Low‑importance

	Medicine portal This article is within the scope of WikiProject Medicine, which recommends that medicine-related articles follow the Manual of Style for medicine-related articles and that biomedical information in any article use high-quality medical sources. Please visit the project page for details or ask questions at Wikipedia talk:WikiProject Medicine.MedicineWikipedia:WikiProject MedicineTemplate:WikiProject Medicinemedicine articles
Low	This article has been rated as Low-importance on the project's importance scale.

Comment

Adolph Fick first derived a solution for Cardiac Output from the ventricles of the heart. Cardiac Output is a close volumetric equivalent to Ejection Fraction. Minimum Volume or MinV is a more mathematically simplified expression of CO. Ejection Fraction, Cardiac Output and MinV all attempt a volumetric definition of Systole of the heart.

Inverted, Fick offers a solution for Diastole. Mathematical inversion of Fick for Diastole implies Injection Fraction , Cardiac Input or MaxV. These inverted ratios attempt volumetric definition of diastole.

shunting effects on Fick

Assuming there are no shunts across the pulmonary system, the pulmonary blood flow equals the systemic blood flow.

This statement is not true. The pulmonary blood flow equals the systemic blood flow -unless- there is shunting from the left heart into the right heart (e.g. a ventricular septal defect), which would cause pulmonary blood flow to exceed systemic blood flow. A shunt across the pulmonary system from the right heart to the left heart (e.g. an arteriovenous malformation in the lung) alters oxygenation, but it does not lead to a discrepancy in the throughput of the right vs. left heart. Edited accordingly. shrimppesto (talk) 01:41, 2 February 2011 (UTC)[reply]

Direct Fick

Direct Fick method has been redirected here. Its contents said: "The Direct Fick method is a method of measuring cardiac output using the Fick principle. It divides the oxygen intake by the difference in oxygen content of aortic blood and mixed venous blood." This might make more sense to lay people than what's currently in the article. WhatamIdoing (talk) 21:53, 16 September 2015 (UTC)[reply]

External links modified

Hello fellow Wikipedians,

I have just modified one external link on Fick principle. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive https://web.archive.org/web/20110612142755/http://sports.jrank.org/pages/5973/arteriovenous-oxygen-difference.html to http://sports.jrank.org/pages/5973/arteriovenous-oxygen-difference.html

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 08:07, 31 December 2016 (UTC)[reply]