Ladd McNamara, M.D discusses the future of medicine both as it relates to health, supplementation, and how health professionals are finding new ways to increase income in an ever evolving world!

Your Lab Report May Be Wrong …Find Out What Healthy Reference Ranges Should Be According to Ladd McNamara, M.D.

arterial plaque build up ladd mcnamara

Most medical labs are not only behind the times in their reporting some of the reference ranges, but when it comes to some unfamiliar lab tests they may completely wrong. If you or your doctor are basing health decisions on incorrect laboratory reference ranges, it not only defeats the point of the test, but it may cause you to NOT make necessary changes that could lessen your risk for chronic disease.

Have you ever had your homocysteine level checked? Was it normal? Was it high, putting you at risk? If you are at risk what should you do about it? What if the lab reference range told you that you had a normal level but actually you were at risk of atherosclerosis, heart disease, and stroke and you could have changed something to help reduce this damaging amino acid complex so that there would be less damage to your arteries and less plaque formation if you would have only known?

So, next time you look at your lab work, here are some suggestions I have for interpreting your report. (Be sure to talk with your doctor about it before you make any health decisions, as I am not your doctor, but only giving my opinion …based upon research.)

I have not seen any laboratory incorrectly report a CBC or Metabolic Panel, so there is no need to discuss that.

Here are the more commonly mistaken reported lab tests, only here are the CORRECT reference ranges, …IMHO, or at least how I would like to see them reported so that you can start making lifestyle changes right away.  (Lifestyle changes means: eating healthy, taking nutritional supplements, exercising, reducing stress, and getting good quality, restorative sleep.)

Vitamin D  (ng/ml)

< 10              Deficient

10 – 29          Insufficient

30 – 49         Sufficient

50 – 70         Good

71 – 85          Ideal

96 – 100       Good

100 – 110      Caution

> 110 Potential Intoxication.    (Blood levels well over 100 may cause atrial fibrillation in certain individuals.)



< 6.5                Ideal

6.6 – 7.3          Acceptable

7.4 – 8.0          Borderline Elevated Risk

8.1 – 10.0        Elevated Risk

10.1 – 15.0       High Risk

> 15                  Very High Risk


C Reactive Protein  (CRP)

< 1.0               Ideal

1.0 – 1.9         Acceptable

2.0 – 2.5        Borderline Elevated Risk

2.6 – 3.0        Elevated Risk

3.1 – 4.0        High Risk

> 4.0              Very High Risk


Oxidized LDL

< 45           Low Risk          

45 – 60      Mildly Elevated Risk

60 – 68      Borderline Elevated Risk, Refer to oxLDL-to-HDL ratio for interpretation

69 – 79       Elevated Risk

80 – 90      High Risk

> 90           Very High Risk


Oxidized LDL-to-HDL Ratio   (The most predictive blood test to assess one’s risk of atherosclerosis, heart disease, and stroke.)

<35           Low Risk

35 – 51      Borderline Elevated Risk

52 – 74      Elevated Risk

75 – 80      High Risk

> 80           Very High Risk


Be sure to get your annual or semi-annual blood work, including your cardiac panel (or lipid panel), one that includes the critically-important Oxidized LDL-to-HDL ratio, C Reactive Protein, Homocysteine, and Vitamin D, among others.   Check out your lab report with what I’ve written above, and talk with your doctor about any discrepancies.   Do not base your health, medical decisions, or changes in medications based upon this blog post or anything else on this website.  That is between you and your doctor.

Lastly, if you are having trouble finding a lab that can test your Oxidized LDL-to-HDL ratio, then please contact Molly Fini, and she’ll be able to assist you.


Posted On
Jun 04, 2012
Posted By

I love these reference ranges. I refer to this all the time!!! You are such a wealth of information.

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