Understanding Arthritis: Causes, Symptoms, and Testing Options
Arthritis isn’t a single condition—it’s an umbrella term that refers to more than 100 different disorders that affect the joints, causing pain, stiffness, swelling, and reduced mobility. It affects people of all ages, but becomes increasingly common with age, and is one of the leading causes of disability in the United States.
At its core, arthritis involves inflammation or degeneration of the joints, but the causes and types vary widely. Accurate diagnosis is the first step to effective treatment—and lab testing can play a key role in identifying the type and potential triggers of arthritis.
Common Types of Arthritis
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Osteoarthritis (OA): The most common form, often called “wear and tear” arthritis, results from the breakdown of cartilage over time. OA typically affects older adults and is linked to aging, repetitive use, or previous joint injuries.
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Rheumatoid Arthritis (RA): An autoimmune disorder where the immune system mistakenly attacks the joints, causing chronic inflammation and joint damage. RA often appears symmetrically in joints (e.g., both hands or knees) and can also affect other organs.
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Lupus: Another autoimmune condition that may present with joint inflammation, alongside skin, kidney, or neurological symptoms.
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Infectious Arthritis: Caused by bacteria, viruses, or fungi entering the joint space—this form requires immediate medical treatment.
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Post-Traumatic Arthritis: Develops after an injury to a joint, such as a fracture or dislocation, even years later.
Lab Tests for Arthritis
While only a healthcare provider can diagnose arthritis, several lab tests can aid in identifying inflammation, autoimmune activity, or underlying imbalances contributing to joint symptoms. At DirectLabs®, we offer a variety of arthritis-related panels and individual tests, including:
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Rheumatoid Factor (RF): Elevated in many individuals with RA.
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Anti-Nuclear Antibodies (ANA): Useful in identifying autoimmune disorders like lupus.
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C-Reactive Protein (CRP) & Sedimentation Rate (ESR): These markers help measure levels of inflammation in the body.
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Uric Acid: High levels may suggest gout, a form of inflammatory arthritis.
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Complete Blood Count (CBC) & Comprehensive Metabolic Panel (CMP): Provide a broader picture of your overall health and help rule out related issues.
Taking these tests can support your healthcare provider’s efforts to pinpoint the cause of joint pain and determine the best treatment strategy.
Take Control of Your Joint Health
Understanding what’s driving your joint discomfort is essential to living a more active, pain-free life. Whether you’re managing chronic arthritis or investigating new symptoms, DirectLabs® makes it simple to access affordable lab tests—no doctor visit required.
