47558-2

Microalbumin/Protein.total in 24 hour Urine

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Part Descriptions

LP32144-5   Protein.total
Serum total protein, also called plasma total protein or total protein, is a biochemical test for measuring the total amount of protein in blood plasma or serum.

Protein in the plasma is made up of albumin and globulin. The globulin in turn is made up of α1, α2, β, and γ globulins. These fractions can be quantitated using protein electrophoresis, but the total protein test is a faster and cheaper test that estimates the total of all fractions together. The traditional method for measuring total protein uses the biuret reagent, but other chemical methods such as Kjeldahl method, dye-binding and refractometry are now available. The measurement is usually performed on automated analysers along with other laboratory tests. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Total protein

LP6118-6   Albumin
A non-glycosylated protein that is synthesized in the liver parenchymal cells, regulated by colloid osmotic pressure from interstitial fluid surrounding hepatocytes, and catabolized in nearly all organs. Albumin comprises >50% of plasma proteins in plasma, CSF and urine, and therefore is a key contributor to intravascular oncotic pressure and regulating fluid concentration in tissues. Albumin also binds and transports a variety of endogenous substances and medications. Serum albumin measurement is a reflection of hydration and nutritional status, blood oncotic pressure, liver and kidney function, and other chronic diseases, and the ratio of albumin in the CSF and serum can be used to evaluate blood brain barrier disorders. [Tietz] Urine albumin of less than 30 mg/day is considered normal. Microalbuminuria is defined as urine albumin of 30-300 mg/day and is an early sign of kidney damage from disorders such as diabetes or hypertension. Albuminuria is urine albumin >300 mg/day and is associated with overt kidney disease. PMID: 25512779 Source: Regenstrief LOINC

LP6222-6   Detection limit <= 20 mg/L
Limit of detection is the lowest analyte concentration at which detection is feasible for the assay method. [PMCID: 2556583] Source: Regenstrief LOINC

Reference Information

Fully-Specified Name

Component

Albumin/Protein.total

Property

MFr

Time

24H

System

Urine

Scale

Qn

Method

Detection limit <= 20 mg/L

Additional Names

Short Name

Microalbumin 24h MFr Ur

Display Name

Albumin DL <= 20 mg/L (24H U) [Mass fraction]

Consumer Name Alpha Get Info

Albumin, Urine

Basic Attributes

Class

CHEM

Type

Laboratory

First Released

Version 2.21

Last Updated

Version 2.73

Order vs. Observation

Both

Common Test Rank Get Info

19014

Member of these Panels

Language Variants Get Info

Related Names

• 1 day
• 24 hours
• 24HR
• Alb
• Albumin fraction
• Albumin%
• Chemistry
• DL=20 mg/L
• Kidney
• Left
• Levo
• MA
• Malb
• Mass fraction
• Micro albumin
• Microalbumin
• Nephrology
• Percent
• PR
• Prot
• Protein.albumin
• QNT
• Quan
• Quant
• Quantitative
• Renal
• Tot
• Totl
• TP
• UA
• UR
• Urn

Example Units

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CodeSystem lookup

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LOINC Copyright

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.