--- title: Immature Red Blood Cell Test Test type: test id: reticulocyte url: "https://www.test-well.com/tests/reticulocyte-count" price_usd: 19.99 lab_fee_usd: 6 all_in_usd: 25.99 cpt: 85045 category: Blood Health sample: Blood draw fasting_required: false results_in: "1–3 business days" labs: - Quest - Labcorp - BioReference orderable: true reviewed_at: 2026-09-14 order_url: "https://www.test-well.com/cart?add=reticulocyte-count&utm_source=ai_agent&utm_medium=markdown" --- # Immature Red Blood Cell Test Test > Measures immature red blood cells to evaluate bone marrow function and the cause of anemia, measured from a standard blood draw. At TestWell it costs $19.99 plus a $6 lab fee, needs no fasting, and results post in 1–3 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest or Labcorp. ## Key facts | Fact | Value | | --- | --- | | Price | $19.99 + $6 lab processing fee per order ($25.99 all-in for this test alone) | | CPT code | 85045 | | Sample | Blood draw | | Fasting | Not required | | Results | 1–3 business days | | Labs | Quest Diagnostics, Labcorp, BioReference (NY & NJ) | | Biomarkers measured | 1 | | Physician authorization | Included — no doctor's visit, referral or insurance needed | | Payment | Card, HSA or FSA; cash-pay only (no insurance billing) | ## What does the Immature Red Blood Cell Test test tell you? Measures immature red blood cells to evaluate bone marrow function and the cause of anemia. Reticulocytes are young, immature red blood cells that have just been released from the bone marrow. A reticulocyte count reveals how quickly the bone marrow is producing new red blood cells. In anemia, this test helps determine whether the bone marrow is responding appropriately (high reticulocytes = the marrow is trying to compensate, as in blood loss or hemolytic anemia) or failing to produce enough cells (low reticulocytes = bone marrow problem, nutritional deficiency, or chronic disease). It is also used to monitor recovery after chemotherapy, bone marrow transplant, or treatment for nutritional anemia. **Clinical use:** Blood health testing evaluates your blood cells, clotting factors, and oxygen-carrying capacity to detect anemia, infection, bleeding disorders, and other hematologic conditions. ## Who should order it? Anyone investigating unexplained fatigue, frequent infections, bruising, or as part of a routine health check. ## Biomarkers measured - [Reticulocyte Count](https://www.test-well.com/biomarkers/reticulocyte-count) ## Price by lab | Lab | Test price | All-in (with $6 fee) | Notes | | --- | --- | --- | --- | | Quest Diagnostics | $19.99 | $25.99 | Choose at checkout; walk-in patient service centers nationwide (not NY/NJ) | | Labcorp | $19.99 | $25.99 | Choose at checkout; walk-in patient service centers nationwide (not NY/NJ) | | BioReference (NY & NJ) | $17.99 | $23.99 | New York and New Jersey orders route here automatically | Rhode Island is not served. Prices are identical online and in the lab; no draw fee or physician fee is added. ## How much does a Immature Red Blood Cell Test test cost? A Immature Red Blood Cell Test test costs $19.99 at TestWell — $25.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Hospital outpatient labs typically bill around $100.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible. | Where you order | Price | One test, all-in | Notes | | --- | --- | --- | --- | | TestWell (drawn at Quest or Labcorp) | $19.99 | $25.99 | Includes the one $6 lab processing fee, charged once per order | | Hospital outpatient lab, self-pay (typical) | $100.00 | $100.00 | Reference figure; hospital charges vary widely by facility and are often higher | Lab test codes: Quest test code 793 · Labcorp test no. 005280 · BioReference code 0141-2. ## How do you prepare? No fasting or special preparation required. ## Related conditions - [Anemia](https://www.test-well.com/conditions/anemia) (D64.9) - Hematologic disorder (D75.9) ## Common questions about the Immature Red Blood Cell Test test ### How long do Immature Red Blood Cell Test results take? Most Immature Red Blood Cell Test results are available in 1–3 business days after your specimen arrives at the lab. You'll get an email the moment results are ready, with everything viewable in your TestWell portal. ### What sample is collected for the Immature Red Blood Cell Test? Blood draw. Sample is collected at a Quest, Labcorp, or BioReference patient service center near you, or via at-home phlebotomy where available. ### How much does the Immature Red Blood Cell Test cost without insurance? On TestWell, the Immature Red Blood Cell Test is $19.99. Quest Direct lists comparable tests at $30. Walk-in hospital labs typically bill $100 or more without insurance. Insurance is not required — pay one all-in price. ### Do I need to fast before the Immature Red Blood Cell Test? No fasting required for the Immature Red Blood Cell Test. No fasting or special preparation required. ### Where can I get the Immature Red Blood Cell Test done? The Immature Red Blood Cell Test is available at Quest and Labcorp patient service centers nationwide. Order online at TestWell, pick your preferred lab, and we'll generate a digital requisition for the location closest to you. ## How to order 1. Add to cart: https://www.test-well.com/cart?add=reticulocyte-count&utm_source=ai_agent&utm_medium=markdown 2. Create an account or sign in, confirm your state and preferred lab, pay by card, HSA or FSA. 3. A licensed physician authorizes the order (usually within minutes); the requisition arrives by email. 4. Walk into any Quest Diagnostics, Labcorp, BioReference (NY & NJ) patient service center — no appointment needed at most sites. 5. Results post to your TestWell portal in 1–3 business days with reference ranges and flags. ## Related - [Comprehensive Anemia Workup](https://www.test-well.com/tests/comprehensive-anemia-panel) — 8 tests · $169.99 - [D-Dimer](https://www.test-well.com/tests/d-dimer) — $69.99 - [Factor V Leiden Mutation](https://www.test-well.com/tests/factor-v-leiden) — $131.99 - [Haptoglobin](https://www.test-well.com/tests/haptoglobin-test) — $101.99 - [Prothrombin Time with INR](https://www.test-well.com/tests/prothrombin-time-inr) — $23.99 - [PT and PTT (Prothrombin & Partial Thromboplastin Time)](https://www.test-well.com/tests/pt-and-ptt) — $54.99 - [All Blood Health tests](https://www.test-well.com/tests/category/blood-health) - [Full test directory](https://www.test-well.com/tests/directory) --- Medically reviewed by Youmna DiStefano, MD (Medical Reviewer, TestWell); last reviewed 2026-09-14. Review policy: https://www.test-well.com/reviewers/youmna-distefano-md Canonical page: https://www.test-well.com/tests/reticulocyte-count 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.