Preferred Label : Urea nitrogen 4H dwell specimen:SCnc:Pt:Dial fld prt:Qn:;
LOINC status : ACTIVE;
LOINC display name : Urea nitrogen 4 hour dwell specimen (Perit dial fld) [Moles/Vol];
LOINC long common name : Urea nitrogen [Moles/volume] in Peritoneal dialysis fluid --4 hour dwell specimen;
LOINC short name : Urea nit 4H dwell spec DiafP-sCnc;
LOINC 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];
Origin ID : 78537-8;
UMLS CUI : C4070986;
Has challenge
- Has component
- Has property
- Has system
- Has time aspect
- Part of panel
- Semantic type(s)
