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TSH with Reflex to Free T4 from Private MD Labs

Labbrary Test GradeUseful
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A Quest blood test measuring TSH with automatic reflex to free T4 when TSH is abnormal.

Current price
$39
Sample
Blood
Turnaround
7 days
Access
Lab Visit, Order Online
Evidence & Key Facts
Source collectedLast source check September 13, 2026

Evidence basis. This named result reflects the sources and verification evidence listed on this page as of the date shown.

Best for

Thyroid

Standout strength

Documents TSH with automatic reflex to free T4 when TSH is abnormal.

Important watch-out

Product-specific validation, precision, interference, and quality-control evidence are not fully established.

TSH with Reflex to Free T4 from Private MD Labs
Labbrary Test GradeUseful
Your Fit Score
Not calculated

Answer five questions to see how this panel matches your goals, budget, collection preferences, access, and support needs.

Calculate my fit

Labbrary's review, Fit Score, and basic comparison are free. The provider's panel, shipping, collection, clinician review, and other services are separate. About 2 minutes. No account required.

A Quest blood test measuring TSH with automatic reflex to free T4 when TSH is abnormal.

Current price
$39
Sample
Blood
Turnaround
7 days
Access
Lab Visit, Order Online
Evidence & Key Facts
Source collectedLast source check September 13, 2026

Evidence basis. This named result reflects the sources and verification evidence listed on this page as of the date shown.

Best for

Thyroid

Standout strength

Documents TSH with automatic reflex to free T4 when TSH is abnormal.

Important watch-out

Product-specific validation, precision, interference, and quality-control evidence are not fully established.

Labbrary+

The Test Grade. The Reason Behind It.

Potentially useful for the right buyer, with meaningful evidence, coverage, transparency, access, cost, terms, or privacy tradeoffs to review.

A lower grade does not mean a panel is a bad personal fit. Your Fit Score can be higher when its purpose, price, sample, access, or support matches what you need.

Explore the Full Methodology
Labbrary Test GradeUseful

Next step

Check the panel or research the provider

Prices, availability, and ordering requirements can change. Confirm the current details before purchasing.

View Exact Panel on Provider SiteView Private MD Labs profile

Scope, both directions

Inside the Panel. Beyond the Name.

Named measurements

  • TSH
  • Free T4 when TSH is abnormal

Measured categories and focus areas

  • Hormones
  • Thyroid

Important limits and omissions

  • Exact offer page names no performing laboratory and no assay method; Quest Diagnostics appears only as brand metadata, not as a named testing route for this exact offer.
  • Page hero shows a 'Test Today for $1, Pay Balance After Results' promotion; rendered hero after-results amount differs from the authoritative Offer JSON-LD price; price taken from exact-product JSON-LD.
  • Provider-wide testing limits: tests are not available in NY, NJ, RI per provider policy; exact per-offer state list is not published.
  • Product-specific HSA and FSA eligibility or reimbursement is not confirmed; the provider documents payment-card acceptance only.
  • The provider privacy notice does not publish a fixed data-retention period.
  • Refunds are limited to the period before specimen submission, with no refund after 21 days. The money-back guarantee is conditional.
  • The exact offer does not publish a complete assay-method and analytical-performance description.

The full breakdown

Eight Dimensions.
One Named Result.

Open any row for the reasoning and evidence behind the named result.

The offer names thyroid stimulating hormone, with an automatic reflex Free T4 measurement on the same sample when the TSH result is abnormal. The exact performing laboratory is chosen during ordering from the Quest Diagnostics or Labcorp route and is not identified on the offer page, so independent verification of the assay is not confirmed.

The offer positions this test as a first check for an underactive or overactive thyroid in people with unexplained fatigue, weight changes, hair loss, or mood changes. TSH signals how hard the brain is driving the thyroid, and the reflex Free T4 adds the active hormone level only when needed; whether the results can diagnose a condition is not established.

The offer lists TSH with conditional Free T4. It does not include T3 markers or thyroid antibodies, and no comparison against any clinical guideline is provided on the offer page.

Results arrive by email and SMS with normal ranges explained, plus doctor notes in plain language and a downloadable standard lab report. The offer page shows illustrative sample results with reference ranges. Guidance on measurement uncertainty and when to seek care beyond the notes is not detailed.

Private MD Labs creates the physician lab order remotely and states that the prescription and all lab fees are included. The lab company, Quest Diagnostics or Labcorp, is selected during ordering; the exact performing laboratory is not named on the offer page.

Ordering is online and the blood draw happens at a lab visit across about 4,000 locations; most locations do not accept walk-ins, so booking ahead is advised. Direct-access testing is unavailable in HI, NJ, NY, and RI. The offer page states results are typically ready within about 7 days of the blood draw, with the reflex result included in the same report.

The offer page shows a price of 39 USD. Services are strictly self-pay and cannot be billed to health insurance, though HSA and FSA payments are accepted. The page describes a money-back guarantee for first-time customers who file within 15 days of receiving results, and orders can be cancelled before samples are collected.

The provider states HIPAA compliance and that it does not sell or share customer data. Results are delivered to a secure online account with email and SMS notification. No fixed data-retention period is published on the offer page.

Under the hood

Follow the Evidence.

Every published claim should trace to a dated source. Missing evidence remains visible instead of being filled with assumptions.

Source 1Recorded for this record. Last source check September 13, 2026.View source
Source 2Recorded for this record. Last source check September 13, 2026.View source
Source 3Recorded for this record. Last source check September 13, 2026.View source
Source 4Recorded for this record. Last source check September 13, 2026.View source

True total cost

The Price. Plus the Details.

Pricing for TSH with Reflex to Free T4
ItemCurrent disclosed priceNote
Panel$39Verify the checkout total, shipping, and collection fees before ordering.
Checkout feesNot confirmedLabbrary hasn't recorded this seller's order, draw or physician fees yet. Check the total at checkout.
HSA/FSA paymentNot confirmedHSA/FSA payment eligibility has not been confirmed from provider documentation.
Optional servicesNot confirmedClinician review, subscriptions, and retesting discounts are listed only when documented.

Price status. This record shows disclosed pricing. Checkout costs can change and should be verified before purchase.

Your data

Your Data. Your Questions.

Privacy details are scored only when source documentation is available. Unconfirmed retention, deletion, research use, or marketing practices remain unconfirmed.

Reading the labels

What Has Been Checked?

Source collected

Evidence labels stay separate from the Test Grade. They show how much source support exists for the evaluation.

The balance

The Strengths. The Tradeoffs.

Strengths

  • Documents TSH with automatic reflex to free T4 when TSH is abnormal.
  • Complete results are listed within 7 business days. No product-specific preparation instructions were captured in the retained primary details.
  • The exact offer page and purchase state document a current price of $39 USD.
  • Private MD Labs arranges the physician lab order, so buyers do not need to supply their own clinician.
  • Results are delivered digitally with report context documented for this exact offer.
  • The privacy notice allows account and data deletion requests, subject to regulatory, compliance, legal, and business retention requirements.

Watch-outs

  • Product-specific validation, precision, interference, and quality-control evidence are not fully established.
  • Abnormal results require clinical interpretation and do not establish a diagnosis from this panel alone.
  • HSA and FSA card acceptance is documented, but eligibility or reimbursement for this exact offer is not confirmed.
  • Refunds are permitted only before specimen submission and are unavailable after 21 days from payment. The 90-day money-back guarantee has first-customer, result, and test-category conditions.
  • The privacy notice permits defined laboratory and service-provider disclosures, deidentified research use with an opt-out, and third-party advertising unless the user opts out. No fixed retention period is published.
  • Private MD Labs does not offer services to residents of New York, New Jersey, or Rhode Island. Exact collection-site availability should be checked before purchase.

Take it with you

The Test Truth Card

The key facts from this review in one compact card.

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Verification History

September 13, 2026Recorded source date.Source collected

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