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Start Date of Total Bilirubin Test

Published: August 9, 2026Updated: August 16, 2026

This record indicates when your total bilirubin blood test was scheduled or initiated, not the actual test result itself.

Quick summary

["This is a tracking metric for your lab test timeline, not a diagnostic measurement."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
45242-5
Short code
TB Tx start date
Synonyms
TB Tx start date
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
reported
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Record Means for You

This entry helps healthcare providers monitor when your bilirubin test was planned or processed. It does not show the actual bilirubin level in your blood, which would require a separate blood test result.

Why It Matters in Your Care

While this date is useful for scheduling and follow-up, it is not a diagnostic test. If you have concerns about bilirubin levels (e.g., jaundice), discuss symptoms with your doctor, who may recommend additional testing.

How It Differs from a Bilirubin Test

This record is a metadata field tracking the start of a test order, not the measurement of bilirubin itself. A bilirubin test would show the actual substance concentration in your blood.

Common Reasons for This Record

Your healthcare provider may have noted this date when scheduling a bilirubin-related test, such as to check for liver function, bile duct issues, or red blood cell breakdown.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Why was this date recorded?
Your healthcare team may have logged this date to track when a bilirubin-related test was ordered or processed, especially if it was part of a routine or follow-up evaluation.
Does this record affect my treatment?
No, this record does not influence treatment decisions. It only indicates when a test was planned and does not provide test results.
Can I request a bilirubin test result from this date?
Yes, if you have concerns about bilirubin levels, ask your doctor for the actual test results from the bilirubin test performed on that date.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy