JustLabs is a direct-to-consumer lab testing platform that lets people order Quest Diagnostics blood tests without insurance. Patients pay transparent, upfront cash prices, receive a physician order automatically, and get their blood drawn at a local Quest Diagnostics patient service center. Results are delivered online with clear explanations, without needing a primary care doctor or insurance approval.
Understanding Your Lab Results
A guide to reading your blood test results, understanding reference ranges, and knowing when to consult your healthcare provider.
This information is educational only and does not replace medical advice. Always discuss your results with a qualified healthcare provider.
Who This Is For
This guide is for anyone who has received lab results through JustLabs and wants to understand what they mean, how to interpret reference ranges, and when to consult a healthcare provider.
How Results Are Delivered
After your blood is drawn and processed, your results are delivered securely to your JustLabs account. Here's what to expect:
Email notification
You'll receive an email as soon as your results are ready—often within a few business days after your lab visit.
Secure online access
Log in to your account to view, download, and print your results. Everything is accessible from any device.
PDF format
Results are provided as a downloadable PDF—the same format used by hospitals and clinics. Easy to save, share, or print.
What's Included in Your Results
Your lab results document includes:
Your measurements
Actual values for each biomarker tested (e.g., TSH: 2.1 mIU/L)
Reference ranges
The typical range for each measurement, so you can see where your results fall. Reference ranges are included for context, and out-of-range values are clearly flagged.
Flagged values
Results outside the normal reference range are typically marked as High or Low for easy identification
Test methodology
Technical details about how the test was performed (for healthcare provider reference)
Lab Results Basics
Your Value
The measured amount of a specific substance in your blood sample.
Reference Range
The typical range of values for a healthy population. Also called "normal range."
Units
The measurement unit used (mg/dL, ng/mL, etc.). Important for comparing values.
Flags
Markers like H (high), L (low), or * indicating values outside the reference range.
Understanding Reference Ranges
Reference ranges represent values found in approximately 95% of healthy individuals. Being slightly outside the range doesn't necessarily indicate a problem.
Factors that can affect your results:
- Age and sex
- Time of day
- Fasting status
- Medications
- Recent exercise
- Hydration level
What Abnormal Results Mean
A value outside the reference range may or may not be clinically significant. Context matters.
Slightly Outside Range
May be a normal variation for you, or could indicate early changes worth monitoring.
Significantly Outside Range
May warrant further investigation. Your healthcare provider can determine next steps.
Critical Values
Labs flag values that need immediate attention. You'll be contacted if results require urgent follow-up.
The Value of Tracking Trends
A single result is a snapshot. Tracking the same tests over time reveals trends that can be more informative than any single value.
Tips for Discussing Results
- Bring a printed copy to your appointment
- Note any symptoms you've been experiencing
- Ask about the significance of any flagged values
- Discuss whether follow-up testing is recommended
- Ask about lifestyle factors that might affect results
What JustLabs Does Not Provide
To be clear about what we do—and don't do:
We provide:
- • Access to lab testing
- • Clinician-authorized lab orders
- • Secure delivery of your results
- • Results in a format you can share with any healthcare provider
We do not provide:
- • Medical diagnosis
- • Treatment recommendations
- • Prescription medications
- • Ongoing medical care
JustLabs is not a medical practice. We facilitate lab testing; interpreting results and deciding on treatment is between you and your healthcare provider.
When to Talk to a Clinician
Consider consulting a healthcare provider if:
Results are outside normal ranges
A doctor can explain what abnormal values might mean for your specific situation
You're not sure what your results mean
Reference ranges are helpful, but context matters
You want to take action
If results suggest a condition that needs treatment, you'll need a provider to prescribe medication or recommend next steps
Results are unexpected
If something doesn't match how you feel, a doctor can help investigate further
Your primary care physician, specialist, or telehealth provider can review your results and provide personalized guidance.
Sharing Results With Your Doctor
Your results PDF is designed to be shared with any healthcare provider. You can:
Email it directly from your account
Print it and bring it to your next appointment
Upload it to your patient portal
Reference it during a telehealth visit
Many patients use JustLabs to get testing done before or between regular doctor visits, then share results for follow-up care with their personal physician.
What to Do Next
Share with Your Doctor
Discuss results with a healthcare provider for proper interpretation.
Consider Retesting
Some abnormal results benefit from repeat testing to confirm.
Track Over Time
Monitor key values periodically to identify trends.
Frequently Asked Questions
Can JustLabs help me interpret my results?
We provide the test results, but medical interpretation should come from a licensed healthcare provider who knows your full health history.
What if my results are abnormal?
Share your results with a healthcare provider. They can determine if the abnormality is significant and recommend appropriate next steps.
Why might my results differ from previous tests?
Many factors can cause variation: time of day, fasting status, recent illness, medications, and normal biological fluctuation. Trends over time are more meaningful than single values.
How long are my results available?
Your results remain accessible in your JustLabs account. We recommend downloading a copy for your personal health records.
Can I order follow-up tests?
Yes. You can order additional tests at any time through JustLabs. Many people retest after making lifestyle changes or following treatment to track progress.
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