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Retinol Binding Protein (RBP) with Triglycerides

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

This test measures two key substances in your blood: retinol binding protein (RBP), which helps transport vitamin A, and triglycerides, a type of fat in your blood.

Quick summary

["Understanding your vitamin A transport and fat levels can help assess nutrition and metabolic health."]

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

Key facts at a glance

LOINC
86291-2
Short code
Retina RNFL Pnl OCT
Synonyms
Retina RNFL Pnl OCT
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
oct
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

Why This Test Is Done

Your healthcare provider may order this test to evaluate vitamin A status, detect liver disease, or assess triglyceride levels, especially if you have symptoms like fatigue, vision changes, or unexplained weight loss.

What to Expect Before the Test

No special preparation is needed. You may have a blood draw, and you can eat and drink normally unless instructed otherwise.

What the Results Mean

RBP levels can indicate vitamin A deficiency or liver problems, while triglycerides help assess heart health and risk of metabolic disorders.

Common Conditions Monitored

This test is often used alongside other blood tests to diagnose or monitor conditions like malnutrition, liver disease, or hypertriglyceridemia.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Changes in RBP or triglycerides may signal underlying health issues, such as vitamin A deficiency, liver dysfunction, or metabolic syndrome, prompting further evaluation.

Short name

RBP + Triglycerides

Frequently asked questions

What causes abnormal RBP levels?
Low RBP levels may result from vitamin A deficiency, liver disease, or kidney problems, while high levels could indicate dehydration or certain genetic conditions.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times and your healthcare provider’s workflow.
Can diet affect triglyceride levels?
Yes, diet plays a major role—high-fat or sugary foods can raise triglycerides, while healthy fats, fiber, and exercise may help lower them.
  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