Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Cholesterol: Significance and Regulation01:29

Cholesterol: Significance and Regulation

Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Lipids: Dietary Sources and Requirements01:18

Lipids: Dietary Sources and Requirements

Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ meats, shellfish,...
Coronary Artery Disease IV: Preventive Measures01:26

Coronary Artery Disease IV: Preventive Measures

Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
Blood Studies for Cardiovascular System III: Serum Lipid Profile01:25

Blood Studies for Cardiovascular System III: Serum Lipid Profile

Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
Lipid-Lowering Drugs: Statins and Miscellaneous Agents01:20

Lipid-Lowering Drugs: Statins and Miscellaneous Agents

Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests01:27

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

One approach to demystifying research in primary care.

Canadian family physician Medecin de famille canadien·2011
Same author

Reducing the Risk of Coronary Artery Disease: Helping patients change.

Canadian family physician Medecin de famille canadien·2011
Same author

Detecting Elevated Cholesterol Levels: Part 1: How accurate is the Reflotron?

Canadian family physician Medecin de famille canadien·2011
Same author

Antithyroid arthritis syndrome.

The Journal of rheumatology·1998
Same author

A practical approach to lifestyle change counselling in primary care.

Patient education and counseling·1994
Same author

Putting prevention into practice.

Health reports·1994

Related Experiment Video

Updated: Jun 5, 2026

Cholesterol Efflux Assay
07:54

Cholesterol Efflux Assay

Published on: March 6, 2012

Detecting Elevated Cholesterol Levels: Part 2: Prevalence and feasibility considerations.

H L Reimer, R W Elford, S Shumak

    Canadian Family Physician Medecin De Famille Canadien
    |January 14, 2011
    PubMed
    Summary

    This study evaluated how well physicians could predict elevated cholesterol levels in patients using clinical risk factor profiles. A total of 713 patients had their cholesterol measured using the Reflotron device, which is a point-of-care testing tool. The results showed that physicians' predictions were inaccurate compared to the actual measurements. Cholesterol levels were categorized into three groups, with 21% of patients having high cholesterol. The study suggests that relying solely on clinical risk factors may not be sufficient for identifying patients with elevated cholesterol. The findings support the use of objective diagnostic tools in primary care to improve diagnostic accuracy.

    Keywords:
    point-of-care cholesterol testingclinical lipid profilingprimary care diagnosticsReflotron device

    Frequently Asked Questions

    More Related Videos

    High-Density Lipoprotein-Specific Phospholipid Efflux Assay
    07:08

    High-Density Lipoprotein-Specific Phospholipid Efflux Assay

    Published on: September 30, 2025

    Related Experiment Videos

    Last Updated: Jun 5, 2026

    Cholesterol Efflux Assay
    07:54

    Cholesterol Efflux Assay

    Published on: March 6, 2012

    High-Density Lipoprotein-Specific Phospholipid Efflux Assay
    07:08

    High-Density Lipoprotein-Specific Phospholipid Efflux Assay

    Published on: September 30, 2025

    Area of Science:

    • Clinical diagnostics in cardiovascular medicine
    • Point-of-care testing in primary care
    • Lipid profiling in preventive cardiology

    Background:

    Current diagnostic practices often rely on physician assessments of patient risk factors for elevated cholesterol. However, these assessments may not align with actual cholesterol measurements. Prior research has shown that clinical judgment alone can miss significant lipid abnormalities. This gap motivated a study to evaluate the accuracy of physician predictions against objective point-of-care testing. No prior work had resolved the reliability of clinical risk factor profiles in predicting cholesterol levels. The study aimed to bridge this gap by comparing physician estimates with actual fingerprick cholesterol measurements. This approach could improve diagnostic accuracy in primary care settings. The need for rapid, accurate cholesterol screening remains unmet in many clinical environments.

    Purpose Of The Study:

    The study aimed to assess the feasibility and accuracy of using the Reflotron dry chemistry reflectance photometer in physicians' offices for detecting elevated cholesterol. The specific problem addressed was the potential inaccuracy of clinical risk factor profiles in predicting cholesterol levels. Physicians often rely on patient history and risk factors to estimate lipid status. This study tested whether such estimates align with actual cholesterol measurements. The motivation was to determine if point-of-care testing could enhance diagnostic accuracy. The study also aimed to evaluate the practicality of implementing such a device in office settings. By comparing physician predictions with objective data, the study sought to highlight diagnostic limitations. This could inform better diagnostic practices in primary care.

    Main Methods:

    The study involved 713 adult patients whose cholesterol levels were measured using the Reflotron device. Fingerprick blood samples were collected and analyzed for cholesterol. Clinical risk factor profiles were assessed by physicians for each patient. Cholesterol levels were categorized into three groups based on thresholds. Physicians were asked to predict which patients had elevated cholesterol. The predictions were compared with the actual measurements from the Reflotron device. The study design included both data collection and analysis phases. The approach focused on evaluating diagnostic accuracy and feasibility in a real-world clinical setting.

    Main Results:

    The study found that physicians' predictions of elevated cholesterol levels were inaccurate when compared to actual measurements. Cholesterol levels were categorized as low (<5.2 mmol/L), borderline high (5.2 to 6.1 mmol/L), and high (≥6.2 mmol/L). The distribution of these categories was 51%, 28%, and 21%, respectively. Physicians' clinical risk factor profiles failed to accurately identify patients with elevated cholesterol. The Reflotron device provided objective measurements that contrasted with physician estimates. The study demonstrated the limitations of relying solely on clinical judgment for lipid assessment. The results suggest that point-of-care testing may be more reliable than subjective risk factor analysis. These findings highlight the need for objective diagnostic tools in primary care settings.

    Conclusions:

    The authors concluded that physician predictions of elevated cholesterol levels based on clinical risk factor profiles are unreliable. The study demonstrated that objective measurements using the Reflotron device differ significantly from physician estimates. These findings suggest that point-of-care testing may improve diagnostic accuracy in primary care. The study also indicated that clinical risk factor profiles may not be sufficient for identifying patients with elevated cholesterol. The authors proposed that integrating objective testing into clinical practice could enhance diagnostic reliability. The results suggest a need for further evaluation of point-of-care testing in clinical settings. The study did not propose new diagnostic protocols or drug targets. The findings support the use of objective diagnostic tools alongside clinical assessments.

    The study found that physicians' predictions of elevated cholesterol levels were inaccurate compared to actual measurements using the Reflotron device.

    Cholesterol levels were categorized as low (<5.2 mmol/L), borderline high (5.2 to 6.1 mmol/L), and high (≥6.2 mmol/L).

    The Reflotron device provided objective cholesterol measurements that contrasted with physician estimates, highlighting diagnostic limitations.

    Clinical risk factor profiles were used by physicians to estimate cholesterol levels, but these estimates were found to be inaccurate.

    21% of patients had high cholesterol levels (≥6.2 mmol/L) according to the study's measurements.

    The findings suggest that objective diagnostic tools like the Reflotron may improve cholesterol detection in primary care settings.