Essential Lab Tests to Request From a Primary Care Doctor

Lab tests for full-body wellness in Lincolnton.
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While basic lab tests can give a snapshot of your overall health, asking your primary doctor to run the following tests can provide a more in-depth look into your body’s internal balance. The team at Advanced Urgent Care and Wellness uses lab test results to develop personalized treatment plans that support your optimal health and long-term wellness.

A Guide to Key Lab Tests for Optimal Health

When it comes to your health, knowledge is power. While your primary care doctor may run routine tests, there are additional labs that can give you a deeper understanding of your body’s inner workings. These tests can help identify underlying issues that may not show up with basic blood work, but that could be impacting your energy, mood, metabolism or overall well-being. Advanced wellness testing options are available to help you take a proactive approach. Here’s a breakdown of essential labs to ask your doctor to run to ensure your health is on the right track.

1. Full Thyroid Panel

The thyroid plays a crucial role in regulating metabolism, energy levels and overall hormonal balance. If you’re experiencing unexplained fatigue, weight gain or mood swings, it could be related to thyroid dysfunction. A full thyroid panel includes several important markers.

TSH (Thyroid Stimulating Hormone) – This is the first test used to assess thyroid function. High levels may indicate hypothyroidism (underactive thyroid), while low levels could point to hyperthyroidism (overactive thyroid).

T4 (Thyroxine) – T4 is the main hormone produced by the thyroid, and a T4 test helps evaluate thyroid function.

T3 (Triiodothyronine) – Low levels of this active form of thyroid hormone that regulates metabolism can contribute to fatigue and weight gain.

Free T4 & Free T3 – These tests measure the unbound (active) forms of T4 and T3 in the blood.

Reverse T3 (RT3) – This inactive form of T3 can indicate problems with thyroid function or other underlying health issues, such as chronic illness or stress.

TPO Antibodies – Elevated levels may suggest autoimmune thyroid disease, such as Hashimoto’s or Graves’ disease.

2. Full Sex Hormone Panel

Sex hormones significantly influence many things, such as mood, energy and overall vitality. For women, fluctuations in estrogen, progesterone and testosterone can contribute to fatigue, irritability, or changes in weight and sleep patterns. A full sex hormone panel includes the following.

Testosterone – Although best known as a male hormone, women also produce testosterone, and low levels in women can lead to fatigue, muscle weakness and low libido.

Estrogen – Imbalances in estrogen can lead to symptoms such as hot flashes, mood swings and irregular menstrual cycles. Monitoring estrogen levels is especially important during menopause.

Progesterone – This hormone helps regulate the menstrual cycle and pregnancy. Low progesterone can contribute to anxiety, mood swings and sleep disturbances.

Free Testosterone – This measures the active form of testosterone in the blood, providing a more accurate reflection of your body’s available testosterone. Low free testosterone can lead to fatigue, decreased libido and muscle weakness.

Estrone – One of the three main forms of estrogen, estrone is particularly important in postmenopausal women. Elevated levels can be linked to various health concerns, including hormone imbalances.

Estradiol – The most potent form of estrogen, estradiol plays a key role in fertility, bone health and mood regulation. Imbalances can contribute to a range of symptoms, from irregular menstrual cycles to mood swings.

3. Vitamin D

Vitamin D is essential for immune function, energy levels and bone health. Many people are vitamin D deficient (especially in areas with limited sunlight). Low levels of vitamin D have been linked to a weakened immune system, fatigue and depression. A simple blood test can help determine if you need a supplement. For those with significant deficiencies or absorption issues, vitamin injections and IV hydration provide many benefits and offer a faster, more effective boost to your levels.

4. Homocysteine

Homocysteine is an amino acid in the blood that can be elevated in people with deficiencies of vitamin B12, B6 or folate. High levels of homocysteine have been linked to an increased risk of heart disease, stroke and cognitive decline. Checking this marker can help detect underlying deficiencies and potential cardiovascular risks.

5. Fasting Insulin

Fasting insulin levels are crucial for assessing insulin resistance, which can lead to weight gain, chronic fatigue and Type 2 diabetes. Elevated fasting insulin can be an early indicator that your body isn’t responding well to insulin, leading potentially to metabolic problems in the future. Monitoring this can help catch insulin resistance before it develops into full-blown diabetes.

6. A1C

The A1C test measures your average blood sugar levels over the past 2–3 months, giving a snapshot of your long-term blood sugar control. Elevated A1C levels are an indicator of prediabetes or diabetes, and are often linked to fatigue, weight gain and difficulty concentrating. Keeping track of your A1C can help you manage your health and prevent serious complications.

Visit Our Top Lincolnton Integrative Medicine Center Today

If you’ve been struggling with symptoms like fatigue, brain fog, weight changes or mood swings, asking your primary care doctor to run these labs can help uncover the root cause of your issues. Talk to your doctor about getting these essential labs done—they could be the key to unlocking the answers you’ve been searching for. Call (704) 240-8133 or request a consultation today.

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