It appears you have not yet Signed Up with our community. To Sign Up for free, please click here....



High Cholesterol Message Board
Post New Thread   Closed Thread
LinkBack Thread Tools
Old 01-30-2006, 07:34 AM   #1
Junior Member
(male)
 
Join Date: Feb 2005
Posts: 26
larry2000 HB User
Wink fasting time???

what is ideal time to fast prior to lipids test?
are numbers distorted if fasting approaches 15 - 16 hours?
i have heard that fasting too long is not adviseable.



larry

 
Sponsors Lightbulb
   
Old 01-30-2006, 09:33 AM   #2
Senior Member
(male)
 
Join Date: Jul 2005
Posts: 118
Sideem HB User
Re: fasting time???

When I had my blood test in December, the place I went to told me I needed to fast 14 hours prior to the test. Typically I've heard 12 hours. And that's what I wound up doing. Unless there's some studies I don't know about, I don't think fasting an extra hour or two would make that much difference in results.

It then makes me wonder, why fast at all. Wouldn't they get a more accurate reading after you've eaten something?

 
Sponsors Lightbulb
   
Old 01-30-2006, 10:37 AM   #3
Veteran
(female)
 
Join Date: Nov 2003
Posts: 481
Tobias HB User
Re: fasting time???

The reason for fasting before a lipid panel is that a measure of triglycerides is a part of that panel and is needed in calculating your TC. Fasting is necessary to get a clear picture of how much triglycerides remains in your bloodstream even when you have not eaten for 12-14 hrs. Some triglycerides circulate in the blood to provide fuel for muscles to work. Extra triglycerides are found in the blood after eating a meal—when fat is being sent from the gut to adipose tissue for storage. The test for triglycerides should be done when you are fasting and no extra triglycerides from a recent meal are present.
For 12 to 14 hours before the test, only water is permitted. In addition, alcohol should not be consumed for the 24 hours just before the test. Triglycerides change dramatically in response to meals, increasing as much as 5 to10 times higher than fasting levels just a few hours after eating. Even fasting levels can vary some day by day.

Usually triglyceride testing is not done alone; rather it is done in conjunction with a complete lipid panel. An exception might be if a patient is being treated for exceptionally high triglycerides to see if a treatment is working.

 
Old 01-30-2006, 05:35 PM   #4
Member
(male)
 
Join Date: Dec 2005
Posts: 92
ediot HB User
Re: fasting time???

I was always told to fast for 12 hours. It usually will say on your order for blood work. I recently had a lipid panel done. The good and bad cholesterol were in ideal range, as well as total cholesterol. The thing that was out of whack was my triglycerides. More than double what would be ideal. I went home and did a search on tri levels and found this out. When going for a fasting lipid panel abstain from alcohol for at least 24 hours prior.Well I had a couple of drinks with dinner and then began my fast. Even though you fast for 12 hours alcohol stays in the bloodstream longer and it can and does (obviously) raise triglyceride levels. Anyhow I am glad I went with the diet and excercise route when given the choice of that or meds by the doc. I have 3 months to "shape up". I will try. I will definitely not have a drink or two for a day or two before my next blood test. See how it goes.

 
Closed Thread

Similar Threads
Thread Thread Starter Board Replies Last Post
Fasting? carrielynn High Cholesterol 5 05-04-2009 12:11 PM
fasting glucose always runs mid to upper 90's-pre-diabetes or normal for some people? dawnmn Diabetes 11 08-24-2008 08:18 PM
Is fasting sugar indicative of how damaging diabetes is? llesnada Diabetes 1 07-20-2008 07:59 AM
Fasting and non-fasting - confused lizzylu High Cholesterol 3 06-15-2007 11:35 AM
another fasting bg question mama8 Diabetes 4 04-23-2006 08:32 PM




Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Sign Up Today!

Ask our community of thousands of members your health questions, and learn from others experiences. Join the conversation!

I want my free account

All times are GMT -7. The time now is 10:39 AM.



Site owned and operated by HealthBoards.com™
Terms of Use © 1998-2014 HealthBoards.com™ All rights reserved.
Do not copy or redistribute in any form!