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7 Lab Tests Your Patients Should Get Annually

Why This Was Updated?

Our specialists regularly review advancements in health and wellness, ensuring our articles are updated with the newest information as it becomes accessible.
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Chronic conditions, such as diabetes, hypertension, cardiovascular disease, and obesity, continue to exert a significant burden on individuals and the healthcare system in the United States. Annual preventive wellness screenings play a crucial role in early detection, timely intervention, and, ultimately, the mitigation of these pervasive health issues.Β 

Are your patients receiving the essential annual lab tests necessary for maintaining optimal health? This article outlines the indispensable lab tests that should be bundled into yearly wellness screenings.

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The Importance of Annual Lab Testing

Annual lab tests facilitate the early detection of diseases, often before symptoms manifest. By systematically monitoring key health indicators, healthcare providers can identify risk factors, implement preventive strategies, and improve long-term health outcomes for their patients.Β 

Early identification allows for timely intervention, which can prevent disease progression and complications. For instance, detecting rising blood glucose levels early can lead to interventions that prevent the development of type 2 diabetes.Β 

Annual lab tests contribute to personalized healthcare by providing detailed insights into a patient's current health status. This information allows for tailored treatment plans that address individual health needs, enhancing the effectiveness of interventions and improving patient outcomes.

7 Essential Annual Lab Tests

These are seven essential tests that doctors should consider ordering for all patients as part of a routine preventive health screening.

1. Complete Blood Count (CBC)

A CBC is a blood test that measures different cellular components of the blood, including the number and size of red blood cells, white blood cells, platelets, hemoglobin, and hematocrit.Β 

CBCs are routinely included in an annual wellness laboratory screening due to their potential to detect and monitor a variety of conditions, including:

2. Comprehensive Metabolic Panel (CMP)

The CMP evaluates liver and kidney function, blood sugar levels, and electrolyte balance. It includes the following components:

  • Blood Glucose
  • Electrolytes: sodium, potassium, calcium, chloride, bicarbonate
  • Liver Enzymes: alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ASP)
  • Kidney Function Markers: blood urea nitrogen (BUN), creatinine, estimated glomerular filtration rate (eGFR)
  • Protein: total protein, albumin

A CMP can detect trends in dysglycemia (abnormal blood sugar), electrolyte imbalances, liver inflammation, and kidney dysfunction. Abnormal results can indicate the presence of various health conditions, including:

3. Lipid Profile

A lipid profile measures cholesterol levels and triglycerides as a well-established screening tool for dyslipidemia and assessing cardiovascular risk.Β 

According to the U.S. Preventive Services Task Force (USPSTF), lipid screening should be ordered for men aged 35 and older, women aged 45 and older, or younger adults with increased cardiovascular risk (29).

Research is exposing the utility of advanced lipid markers, such as apolipoprotein B (apoB), lipoprotein(a) [Lp(a)], and LDL particle size and number, in more accurately assessing cardiovascular risk. Because of this, these markers are more frequently added to standard lipid profiles.

4. Thyroid Function Tests

Thyroid disorders are relatively common, affecting 5% of the United States population. Undiagnosed and untreated thyroid dysfunction can disturb normal metabolism and increase the risk of other health complications, such as heart disease, osteoporosis, mood disorders, and infertility.Β 

The American Thyroid Association (ATA) recommends measuring thyroid function in all adults beginning at age 35 years and every five years thereafter, with more frequent screening in high-risk or symptomatic individuals.

Thyroid-stimulating hormone (TSH) is the first-line test of choice to detect thyroid disease. To avoid missing up to 7% of cases of thyroid dysfunction that can be missed by measuring TSH alone, many providers choose to order a more complete thyroid panel that also includes free T4 and free T3.Β 

5. Hemoglobin A1c (HbA1c)

According to the Centers for Disease Control and Prevention (CDC), 11.6% of the U.S. population and 38% of American adults have diabetes and prediabetes, respectively.

Overweight and obesity are the strongest risk factors for developing prediabetes and type 2 diabetes in adults. Other risk factors include:Β 

  • Older age
  • Family history
  • Personal history of gestational diabetes and polycystic ovarian syndrome (PCOS)
  • Sedentary lifestyle
  • Unhealthy diet (22)Β 

The USPSTF recommends screening for prediabetes and type 2 diabetes in adults aged 35-70 who are overweight or obese.Β 

The American Diabetes Association (ADA) recommends using HbA1c to screen and diagnose diabetes. According to their guidelines, an HbA1c level of 5.7-6.4% is diagnostic for prediabetes and indicates a high risk for developing diabetes. An HbA1c level of β‰₯6.5% is diagnostic of diabetes.

6. Vitamin D

Vitamin D deficiency and insufficiency are prevalent globally and have significant health implications. According to a study using data from the National Health and Nutrition Examination Survey (NHANES) 2001-2010, the prevalence of vitamin D deficiency in U.S. adults was 28.9%, and vitamin D insufficiency was 41.4%.

Vitamin D deficiency is linked to various health issues, including bone diseases such as rickets in children and osteomalacia in adults, as well as increased risks of cardiovascular disease, insulin resistance, hypertension, respiratory illnesses, and other chronic diseases. (37, 38)Β 

7. C-Reactive Protein (CRP)

CRP is an acute-phase protein produced in response to inflammation. Inflammation plays a central role in the pathogenesis of many chronic diseases, including cardiovascular disease, type 2 diabetes mellitus, and neurodegenerative disorders.Β 

In preventive healthcare, CRP is important because it helps identify individuals at higher risk for chronic inflammatory conditions, particularly cardiovascular-related events. Risk can be estimated in part by the level of CRP:Β 

  • Low Risk: <1 mg/L
  • Average Risk: 1-3 mg/L
  • High Risk: >3 mg/L (17)Β 

Special Considerations Based on Age and Risk Factors

Different age groups, sexes, and lifestyle risk factors necessitate additional annual lab screenings to ensure comprehensive health assessments.

Lung Cancer

The American Cancer Society (ACS) recommends annual screening with low-dose computed tomography for adults aged 55-74 years who have at least a 30-pack-year smoking history and currently smoke or have quit within the past 15 years.

The USPSTF extends this recommendation to adults aged 50-80 years with a 20-pack-year smoking history.Β 

Breast Cancer

The ACS recommends that women aged 45-54 years undergo annual mammography. Women aged 40-44 years should have the option to start annual screening, and those aged 55 years and older should transition to biennial screening or continue annual screening based on personal preference and health status. (10)Β 

Prostate Cancer

The ACS recommends that men aged 50 years and older with at least a 10-year life expectancy discuss the potential benefits and risks of prostate-specific antigen (PSA) testing and digital rectal examination (DRE) with their healthcare provider. Screening decisions should be individualized based on patient preferences and risk factors. (3)Β 

Sexually Transmitted Infections (STIs)

The CDC recommends annual screening for chlamydia and gonorrhea in sexually active women aged 25 years and younger and in older women with risk factors such as new or multiple sex partners. Men who have sex with men should be screened annually, with more frequent screening for those at higher risk. (39)Β 

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Key Takeaways

  • Regular annual lab tests are a cornerstone of preventive healthcare. They enable early detection, monitoring of chronic conditions, and personalized patient care.Β 
  • Encouraging adherence to these screenings and addressing barriers to testing are vital steps in fostering a proactive approach to health management.Β 
  • From a public health perspective, regular annual lab tests are essential for early identification and intervention of health risks. They ultimately foster a healthier population and reduce the burden of chronic diseases.
The information provided is not intended to be a substitute for professional medical advice. Always consult with your doctor or other qualified healthcare provider before taking any dietary supplement or making any changes to your diet or exercise routine.
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