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Vitamin Intake Assessment (Qualitative, Plasma/Serum)

Published: August 9, 2026Updated: August 17, 2026

This test evaluates whether your recent dietary intake meets recommended levels of essential vitamins, measured in your blood plasma or serum.

Quick summary

["Assesses if your vitamin consumption aligns with health guidelines through blood analysis."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
81942-5
Short code
Vitamin intake Pnl
Synonyms
Vitamin intake Pnl
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
38
Ref high
98
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 Test Measures

The test checks the qualitative presence and relative levels of key vitamins (e.g., vitamin A, D, E, K, B-complex) in your blood. It does not provide exact numeric values but helps identify if intake is insufficient or excessive based on standard reference ranges.

Why It Matters for You

Vitamin deficiencies or excesses can affect energy, immune function, bone health, and overall well-being. This screening helps identify potential gaps in your diet early.

Common Causes of Results

Results may indicate low intake if you have dietary restrictions, poor absorption (e.g., due to digestive issues), or limited exposure to sunlight (for vitamin D). Overconsumption could also appear if you take high-dose supplements.

Next Steps Based on Results

If the screening suggests insufficient intake, your healthcare provider may recommend dietary adjustments, supplements, or further testing for specific vitamins.

Reference range

NCBI: Vitamin A 38-98 µg/dLN/A

Specimen: serum

No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Vitamin Intake Screening

Frequently asked questions

Why was this test ordered?
Your doctor may have ordered this test to assess overall vitamin status, especially if you have symptoms like fatigue, frequent infections, or unexplained deficiencies, or if you follow restrictive diets.
What do abnormal results mean?
Abnormal results may signal deficiencies or excesses that could impact your health, prompting further evaluation or treatment. Always discuss findings with your provider.
Can I adjust my diet based on this test alone?
No, results should be interpreted by a healthcare professional. They’ll consider your medical history, symptoms, and other lab results before recommending changes.
  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 17, 2026. · Read our editorial policy