---
title: "What blood tests are used for joint pain?"
type: symptom
url: "https://www.test-well.com/symptoms/joint-pain"
symptom: Joint pain
aliases:
  - achy joints
  - joint pain blood test
  - arthritis blood test
  - swollen joints
reviewed_at: 2026-09-06
review_status: reviewed
date_published: 2026-09-05
lab_fee_usd: 6
---

# What blood tests are used for joint pain?

> Blood tests sort joint pain into inflammatory, autoimmune and metabolic causes. The standard screen is CRP and sed rate (inflammation), rheumatoid factor and ANA (autoimmune), and uric acid (gout); a CBC and CMP complete the baseline. Results point toward — never confirm — a diagnosis a clinician makes with your exam and history.


## When should you see a clinician instead of ordering a test?

- A single hot, red, swollen joint with fever — seek care the same day (possible infection)
- Joint pain with a rash, mouth ulcers, chest pain or unexplained fever
- Sudden inability to bear weight or move a joint after an injury

## Why these tests for joint pain?

Inflammatory arthritis raises CRP and ESR; rheumatoid arthritis often shows rheumatoid factor; lupus and related conditions are screened with ANA; gout is suggested by high uric acid. Osteoarthritis — the most common joint pain — produces normal blood tests, which is itself useful information.

A positive ANA or rheumatoid factor is common in healthy people and means 'look further', not 'you have the disease'. Interpretation belongs with a clinician, often a rheumatologist.

## Which conditions do these tests help evaluate?

- [Autoimmune Screening](https://www.test-well.com/conditions/autoimmune-screening) — ANA, rheumatoid factor, anti-CCP and inflammation markers for autoimmune workups.

## Which tests, and what do they cost?

| Test or panel | Type | Price | All-in (one item + $6 fee) | Fasting | Results |
| --- | --- | --- | --- | --- | --- |
| [Autoimmune Panel](https://www.test-well.com/tests/autoimmune-panel) | Panel (5 tests) | $129.99 | $135.99 | No | 3–5 business days |
| [Inflammation Panel](https://www.test-well.com/tests/inflammation-panel) | Panel (7 tests) | $119.99 | $125.99 | Yes | 2–5 business days |
| [C-Reactive Protein (CRP)](https://www.test-well.com/tests/crp) | Test | $26.99 | $32.99 | No | 2–4 business days |
| [Body Inflammation Test (ESR)](https://www.test-well.com/tests/sed-rate) | Test | $18.99 | $24.99 | No | 2–4 business days |
| [Rheumatoid Factor (RF)](https://www.test-well.com/tests/rheumatoid-factor) | Test | $21.99 | $27.99 | No | 2–4 business days |
| [Autoimmune Antibody Screen (ANA)](https://www.test-well.com/tests/ana-screen) | Test | $32.99 | $38.99 | No | 3–5 business days |
| [Uric Acid](https://www.test-well.com/tests/uric-acid) | Test | $21.99 | $27.99 | No | 1–3 business days |
| [CBC with Differential](https://www.test-well.com/tests/cbc-with-differential) | Test | $21.99 | $27.99 | No | 1–3 business days |
| [Comprehensive Metabolic Panel](https://www.test-well.com/tests/comprehensive-metabolic-panel) | Test | $22.99 | $28.99 | Yes | 1–3 business days |

Prices are cash-pay; every order adds one $6.00 lab processing fee. Physician authorization included.

## Common questions

### Does a normal CRP mean my joint pain isn't serious?

It makes an inflammatory cause less likely and osteoarthritis or mechanical causes more likely. It doesn't rule out disease — some inflammatory conditions run with normal CRP.

### What does a positive ANA mean?

That antibodies against cell nuclei were detected. Low-titer positives are common in healthy people; a clinician decides whether follow-up antibody testing is warranted based on your symptoms.

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---

Medically reviewed by Youmna DiStefano, MD (Medical Reviewer, TestWell); last reviewed 2026-09-06. Review policy: https://www.test-well.com/editorial-policy

Canonical page: https://www.test-well.com/symptoms/joint-pain
Machine-readable catalog: https://www.test-well.com/api/catalog.json · MCP server: https://www.test-well.com/mcp · Overview for agents: https://www.test-well.com/llms.txt

Prices are cash-pay, in USD, and include physician authorization; every order adds one flat $6 lab processing fee. Educational content is not a diagnosis — discuss results with a clinician.