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Lactose Tolerance Test

Lactose Tolerance Test is a topic covered in the Davis's Lab & Diagnostic Tests.

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General

Synonym/Acronym:
LTT.

Common Use:
To assess for lactose intolerance or other metabolic disorders.

Specimen:
Plasma collected in a gray-top (fluoride/oxalate) tube.

Normal Findings:
(Method: Spectrophotometry)

Change in Glucose Value*Conventional UnitsSI Units (Conventional Units × 0.0555)
NormalGreater than 30 mg/dLGreater than 1.7 mmol/L
Inconclusive20–30 mg/dL1.1–1.7 mmol/L
AbnormalLess than 20 mg/dLLess than 1.1 mmol/L
*Compared to fasting sample for infants, children, adults, and older adults.

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Citation

Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Lactose Tolerance Test." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425239/all/Lactose_Tolerance_Test.
Bladh ML, Van Leeuwen AM. Lactose Tolerance Test. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425239/all/Lactose_Tolerance_Test. Accessed April 25, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Lactose Tolerance Test. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425239/all/Lactose_Tolerance_Test
Bladh ML, Van Leeuwen AM. Lactose Tolerance Test [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 April 25]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425239/all/Lactose_Tolerance_Test.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Lactose Tolerance Test ID - 425239 A1 - Bladh,Mickey Lynn, AU - Van Leeuwen,Anne M, BT - Davis's Laboratory & Diagnostic Tests UR - https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425239/all/Lactose_Tolerance_Test PB - F.A. Davis Company ET - 7 DB - Nursing Central DP - Unbound Medicine ER -