78536-0
LOINC Code
| LOINC code | 78536-0 | ||
|---|---|---|---|
| name | |||
| description | A 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 drained, and after complete drainage, 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] | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Urea nitrogen^2H dwell specimen 2H = 2 hours post challenge | ||
| property | SCnc = Substance Concentration | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Dial fld prt = Peritoneal dialysis fluid | ||
| scale | Qn = 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 name | 120 min; 120 minutes; 120min; 2 hours; Blood urea nitrogen; Chemistry; Diaf; DiafP; Dialysate; Dialysis fluid; Level; N; N2; Nit; Peritoneal Dialysis fluid; Point in time; QNT; Quan; Quant; Quantitative; Random; Spec; Substance concentration; UN | ||
Basic Attributes | |||
| class | CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | Urea nit 2H dwe | ||
| example UCUM units | mmol/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) | ||
Member of these Groups | |||
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Member of these Panels | |||
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History/Usage | |||
| first released | |||
| last updated | 2.54 | ||
| last change type | ADD - added | ||
| change reason | mmol/L | ||
Related Names | |||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, 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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