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Maltose

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

Measures the amount of maltose, a type of sugar, in a laboratory specimen. The specimen and testing method depend on the specific order.

Quick summary

["The result is interpreted along with the specimen type, symptoms, and other carbohydrate tests."]

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

Key facts at a glance

LOINC
91122-2
Short code
Maltose BP IgE Qn
Synonyms
Maltose BP IgE Qn
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
7
Ref high
56
Critical range
— – 500 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
84484
SNOMED
302773008
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 is this test?

This test measures the amount of maltose in a laboratory specimen. Maltose is a sugar made when the body breaks down more complex carbohydrates, and it is most commonly measured as part of an evaluation of how the body handles carbohydrates.

Why might I need this test?

A clinician may order this test when symptoms suggest trouble absorbing or processing carbohydrates, particularly after eating. It may also be used in the evaluation of diabetes, malabsorption, or certain rare inherited conditions affecting sugar metabolism.

How is the test performed?

A laboratory technician analyzes the specimen specified in the order using an appropriate laboratory method. If blood testing is ordered, a small blood sample is usually collected through a vein; the ordered specimen and method should be confirmed with the healthcare provider or laboratory.

How do I prepare for the test?

Follow the preparation instructions provided with the order. Some carbohydrate tests may require fasting or a period without unusual food intake, but you should not fast unless specifically instructed. Continue medications unless your clinician tells you otherwise.

Reference range

Adult males: 7-56 U/L; Adult females: 7-43 U/LN/A

Specimen: serum

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Maltose test

Frequently asked questions

What does the maltose test measure?
It measures the amount of the sugar maltose in the ordered laboratory specimen. The result helps assess how the body is handling this carbohydrate.
What specimen is used?
The specimen depends on the specific laboratory order, and the compressed test name does not clearly identify it. Confirm whether the test uses blood or another sample with your healthcare provider or laboratory.
Do I need to fast before this test?
Fasting may be requested for some carbohydrate tests, but not all maltose tests require it. Follow the instructions in your order and ask the laboratory if you are unsure.
  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