PMID- 12491605
OWN - NLM
STAT- MEDLINE
DCOM- 20030304
LR  - 20191210
IS  - 0047-1860 (Print)
IS  - 0047-1860 (Linking)
VI  - 50
IP  - 11
DP  - 2002 Nov
TI  - [Revisited univariate delta check method for hematologic laboratories 
      (I)--Usefulness for detection of specimen mix-up in patients with hematologic 
      disorders].
PG  - 1072-5
AB  - We evaluated the delta check method for hematologic laboratories to detect 
      specimen mix-up. We selected 271 patients with hematologic disorders and two 
      types of investigation were conducted. The first investigation comprised 
      statistical analysis, while the second involved evaluation of the procedure. From 
      parameters of white blood cell, red blood cell, hemoglobin, hematocrit, mean 
      corpuscular volume (MCV), mean corpuscular hemoglobin(MCH), mean corpuscular 
      hemoglobin concentration (MCHC), and platelets, MCV was considered to represent 
      the best single marker to detect artificial mix-up. About 98% of MCV delta values 
      from one patient were within 3 fl. Conversely, 40% of MCV delta values in 
      artificial mixups exceed 10 fl. No correlations between time interval and MCV 
      delta values were detected. However, some cases were observed in which MCV delta 
      values changed markedly over a short period of time even though the samples 
      originated from one patient. In conclusion, we recommend investigation for 
      specimen mix-up in cases where MCV delta values exceed 4 fl.
FAU - Ohara, Tomoko
AU  - Ohara T
AD  - Department of Clinical Laboratory Medicine, Jichi Medical School, Kawachi-gun, 
      Tochigi-pref. 329-0498.
FAU - Itoh, Kouichi
AU  - Itoh K
LA  - jpn
PT  - Evaluation Study
PT  - Journal Article
PL  - Japan
TA  - Rinsho Byori
JT  - Rinsho byori. The Japanese journal of clinical pathology
JID - 2984781R
SB  - IM
MH  - *Clinical Laboratory Techniques
MH  - Diagnostic Errors/*prevention & control
MH  - Erythrocyte Indices
MH  - Hematologic Diseases/blood/*diagnosis
MH  - Hematologic Tests/*methods
MH  - Humans
MH  - *Quality Control
MH  - ROC Curve
MH  - *Specimen Handling
MH  - Time Factors
EDAT- 2002/12/21 04:00
MHDA- 2003/03/05 04:00
CRDT- 2002/12/21 04:00
PHST- 2002/12/21 04:00 [pubmed]
PHST- 2003/03/05 04:00 [medline]
PHST- 2002/12/21 04:00 [entrez]
PST - ppublish
SO  - Rinsho Byori. 2002 Nov;50(11):1072-5.