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 03-23-2004, 08:55 AM   #1
Junior Member
(female)
 
Join Date: Jan 2004
Posts: 24
50176702 HB User
Calculation of Total Cholesterol

Dear all,

Do you know what is the standard way of calculating total cholesterol level? I note from the lab results for my mum and for myself (done in two different labs) that there is a difference in calculating the total cholesterol level. My mum's report done by Lab A shows a total cholesterol level of about 247, which is considered high. If Lab B's method is used, the figure will be slightly lower than 230.

Besides, for Lab A (i.e. for my mum), LDL above 130 is considered as "borderline"; yet for mine, the line is cut at 150. Which should I follow? My mum's LDL level is around 150, is it high?

The point of these questions is that, exactly on the basis of the figures from Lab A, my mum's doctor prescribes her a cholesterol-reducing medication (called Bezalip), though in low dosage (one tablet daily). I am wondering if this is necessary, particularly when her triglycerides level is normal (77) and her HDL is very good (over 60).

Do you have any idea about the calculation method or on where the lines should cut? Any knowledge about the side effects of the medication would also be welcomed. Many thanks.

501

 
Old 03-24-2004, 04:52 AM   #2
Inactive
 
Join Date: Apr 2002
Location: Jersey City, NJ
Posts: 2,902
zip2play HB User
Re: Calculation of Total Cholesterol

Is that Lab A and Lab B conjectural or actual?

There SHOULD be no difference in the cholesterol measurement from lab to lab. The agreed standard is currently
TC = LDL + HDL + (Triglycerides/5).

All are directly measured except the LDL which is obtained by jiggling the equation around. Even THAT can be measured directly by better labs (and soon all I predict.)

As far as what is safe , i.e, 130 for your mum, 150 for you, that depends on personal interpretation, age, sex, doctor, health (heart risks). Depending on who you talk to you might get a different value of "borderline."

Side effects of the meds are all over the "High Cholesterol" board... Just scan down and read for an hour or so... (really).
Personally I'm a fan but the biggest complaint from people who don't like them is muscle and joint pain.
Liver should be checked periodically for enzymes (blood test) but the complaints in this direction are few.

 
Sponsors Lightbulb
   
Old 03-24-2004, 05:47 AM   #3
Veteran
(female)
 
Join Date: Jun 2002
Posts: 422
pcovers HB User
Re: Calculation of Total Cholesterol

Quote:
Originally Posted by 50176702
Dear all,

Do you know what is the standard way of calculating total cholesterol level? I note from the lab results for my mum and for myself (done in two different labs) that there is a difference in calculating the total cholesterol level. My mum's report done by Lab A shows a total cholesterol level of about 247, which is considered high. If Lab B's method is used, the figure will be slightly lower than 230.

Besides, for Lab A (i.e. for my mum), LDL above 130 is considered as "borderline"; yet for mine, the line is cut at 150. Which should I follow? My mum's LDL level is around 150, is it high?

The point of these questions is that, exactly on the basis of the figures from Lab A, my mum's doctor prescribes her a cholesterol-reducing medication (called Bezalip), though in low dosage (one tablet daily). I am wondering if this is necessary, particularly when her triglycerides level is normal (77) and her HDL is very good (over 60).

Do you have any idea about the calculation method or on where the lines should cut? Any knowledge about the side effects of the medication would also be welcomed. Many thanks.

501
If you mean that your mother had two different blood tests done at two different labs and they came up with two different TC numbers, this is not surprising. They are likely using the same testing protocol, but these numbers are not absolutes like your height. In other words, you could have the very same lab take a sample, five minutes later take another sample. Then send these two samples to the very same testing lab and they could come back with the differences you noted above for your mothers TC.

As zip noted, TC is always read directly. It is LDL that is calculated using the the formula zip provided.

 
Old 03-24-2004, 07:04 AM   #4
Junior Member
(female)
 
Join Date: Jan 2004
Posts: 24
50176702 HB User
Re: Calculation of Total Cholesterol

The figures for my mum doesn't seem to fit in the formula which zip or the web told me (i.e. HDL+LDL+Triy/5):

HDL 63
LDL 150
Triy 77
TC 247

There comes my question.

Anyway thanks for the feedback. I agree it's no good asking things that are already plenty there on the web.

 
Old 03-24-2004, 08:32 PM   #5
Inactive
 
Join Date: Feb 2004
Posts: 22
bigal123 HB User
Re: Calculation of Total Cholesterol

Quote:
Originally Posted by 50176702
The figures for my mum doesn't seem to fit in the formula which zip or the web told me (i.e. HDL+LDL+Triy/5):

HDL 63
LDL 150
Triy 77
TC 247

There comes my question.

Anyway thanks for the feedback. I agree it's no good asking things that are already plenty there on the web.
No the formula is wrong the correct one is
Total cholesterol minus HDL minus the (Triglycerides divided by 5)
So here is an example Chol.=174 Trig= 296 HDL= 54 LDL=60.8
174 - 54=120
296. divided by 5=59.2
120
-59.2
60.8

 
Old 03-25-2004, 04:31 AM   #6
Inactive
 
Join Date: Mar 2004
Posts: 551
Salinas1 HB User
Re: Calculation of Total Cholesterol

Quote:
Originally Posted by bigal123
No the formula is wrong the correct one is
Total cholesterol minus HDL minus the (Triglycerides divided by 5)
So here is an example Chol.=174 Trig= 296 HDL= 54 LDL=60.8
174 - 54=120
296. divided by 5=59.2
120
-59.2
60.8
Hey bigal, your forumla is identical to the one you said was wrong. You said:

LDL = TC - HDL - (Trigs/5)

Which just happens to be the same exact forumula as:

TC = LDL + HDL + (Trigs/5).

 
Old 03-25-2004, 06:26 AM   #7
Inactive
 
Join Date: Apr 2002
Location: Jersey City, NJ
Posts: 2,902
zip2play HB User
Re: Calculation of Total Cholesterol

Gee,
I always thought it was:
Trig/5 = TC - LDL - HDL :

 
Closed Thread

Similar Threads
Thread Thread Starter Board Replies Last Post
Total cholesterol calculation hshutinya High Cholesterol 2 11-02-2009 11:15 AM
Cholesterol Ratio = Total Cholesterol / HDL Cholesterol tjlhb High Cholesterol 0 12-17-2008 03:08 PM
Total Cholesterol at 900 Arizona77 High Cholesterol 11 10-27-2007 07:37 PM
Fiber- Total Cholesterol down to 183 Rick49 High Cholesterol 9 02-22-2006 06:31 PM
Total Cholesterol cholesterolguy Open to All Other Health Topics 0 10-02-2005 02:54 AM




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




Join Our Newsletter

Stay healthy through tips curated by our health experts.

Whoops,

There was a problem adding your email Try again

Thank You

Your email has been added




Top 10 Drugs Discussed on this Board.
(Go to DrugTalk.com for complete list)
Aspirin
Crestor
Lipitor
Niaspan
Pravachol
  Simvastatin Tricor
Vytorin
Zetia
Zocor




TOP THANKED CONTRIBUTORS



JJ (25), yackedar (24), jenj770 (13), ARIZONA73 (10), rudiraven (10), Titchou (5), phil58 (4), AussieBloke (4), ladybud (4), Lenin (3)

Site Wide Totals

teteri66 (1180), MSJayhawk (1007), Apollo123 (906), Titchou (851), janewhite1 (823), Gabriel (759), ladybud (755), midwest1 (669), sammy64 (668), BlueSkies14 (607)



All times are GMT -7. The time now is 04:34 AM.



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