Urea nitrogen [Moles/volume] in Peritoneal dialysis fluid --overnight dwell   79265-5

LOINC Code


LOINC code79265-5
nameUrea nitrogen [Moles/volume] in Peritoneal dialysis fluid --overnight dwell
descriptionA Peritoneal Equilibration Test (PET) is used to assess transport properties of the peritoneal membrane in patients undergoing peritoneal dialysis. Patients arrive at the dialysis unit in the morning with their overnight dwell fluid still in the abdomen. The overnight fluid is completely drained and sampled for testing. In the classic PET, 2000 ml of a 2.27% glucose solution is instilled and peritoneal dialysis is begun. Ten ml samples are drawn at time 0, 2, and 4 hours to measure creatinine, urea, and glucose. The PET assesses the rate of solute equilibration between peritoneal capillary blood and dialysate based on the ratio of the solute concentrations in dialysate and plasma (D/P). PET results are used to adjust various aspects of a patient's peritoneal dialysis regimen, including dwell time, number of exchanges, and dialysis volume and composition. [PMID: 7474677]
statusACTIVE

Fully-Specified Name

componentUrea nitrogen^overnight dwell
propertySCnc  =  Substance Concentration
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemDial fld prt  =  Peritoneal dialysis fluid
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
method

Additional Names

short nameUrea nit Ovrngt Dwell DiafP-sCnc

Basic Attributes

classCHAL
type1  Laboratory
order vs. observationBoth
example UCUM unitsmmol/L
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unitmmol/L

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

Member of these Panels

78747-3Peritoneal equilibration test panel - Peritoneal dialysis fluid

History/Usage

first released
last updated2.56
last change typeMIN  - change to field other than name

Related Names

Blood urea nitrogen
CHEMISTRY.CHALLENGE TESTING
Diaf
DiafP
Dialysate
Dialysis fluid
Level
N
N2
Nit
Ovrngt Dwell
Peritoneal Dialysis fluid
Point in time
QNT
Quan
Quant
Quantitative
Random
Substance concentration
UN

Copyright © 2023 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2023, 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.

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