Abstract:
:Delta checking is a laboratory information system (LIS)-based tool that detects patient and laboratory quality control errors. By using hemoglobin A1c (HbA1c) data, we developed a novel approach to summarizing and presenting patient Delta values to address limitations of current Delta check algorithms. Delta values were calculated from intrapatient pairs of HbA1c (n = 55,327) measured during 2 years in a single referral or a university hospital laboratory. Three-dimensional Delta-time (DeltaT) and percentile limit graphs were constructed. Cumulative distribution function analysis was used to explore clinical utilization. The DeltaT graphs showed that HbA1c Delta values increase asymmetrically over time. Although the 2.5 to 97.5 and 5.0 to 95.0 percentile Delta check limits were similar for both sites, the referral laboratory's 0.5 to 99.5 percentile limits were wider. For acute patient care environments, we recommend limits of -3.5% and 1.8% for measurements between 0 and 60 days and -4.0% and 2.0% for measurements between 60 and 120 days. For the outpatient environment, we recommend limits of -4.2% and 2.1% and 5.0% and 2.5% for measurements between 0 and 60 days and 60 and 120 days, respectively.Delta checking can be significantly improved with customization of limits set by population and interobservation period. Because LIS systems are incapable of these customizations, customers must become advocates for these modifications.
journal_name
Am J Clin Patholjournal_title
American journal of clinical pathologyauthors
Tran DV,Cembrowski GS,Lee T,Higgins TNdoi
10.1309/VM6FVF6GGCYYJ9BVsubject
Has Abstractpub_date
2008-08-01 00:00:00pages
292-8issue
2eissn
0002-9173issn
1943-7722pii
CG370584K5351804journal_volume
130pub_type
杂志文章abstract::Previous studies have found that amplification and overexpression of the c-erbB-2 oncogene in mammary ductal adenocarcinomas predicts decreased disease-free or overall survival. Information regarding the prognostic and pathogenetic significance of oncogene amplification has been limited by difficulty obtaining suffici...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/101.4.493
更新日期:1994-04-01 00:00:00
abstract::We tested the hypothesis that extensively keratinized squamous intraepithelial lesions (SILs) are difficult to grade precisely by identifying 100 Papanicolaou smears with a keratinizing SIL that had been originally judged difficult to grade. Of these, 65 were confirmed as low-grade SIL (LSIL) or high-grade SIL (HSIL) ...
journal_title:American journal of clinical pathology
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abstract::Spiral arteries, from curetted endometrium, of first-trimester pregnancies, were examined in 342 consecutive cases, comprising 150 primigravida and 192 multigravida . Vascular changes, similar to the "acute atherosis ," described at the end of pregnancy in preeclamptic women, were found. Primigravida had a statistical...
journal_title:American journal of clinical pathology
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abstract::A 73-year-old man with myelodysplastic syndrome developed during the course of his illness auto-immune hemolytic anemia. The association between auto-immune hemolysis and myeloproliferative disease is extremely rare. An even more unique finding is the nature of the antibody which demonstrated single specificity agains...
journal_title:American journal of clinical pathology
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doi:10.1093/ajcp/77.3.356
更新日期:1982-03-01 00:00:00
abstract::The results from fetal-maternal hemorrhage (FMH) detection and quantitation external quality assessment surveys conducted in Ontario indicate that the rosette test had a sensitivity and specificity for an FMH of more than 10 mL of 1.0 and 0.75, respectively, compared with 0.96 and 0.92, respectively, for acid elution....
journal_title:American journal of clinical pathology
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abstract:OBJECTIVES:High-grade serous carcinoma (HGSC) is the most common ovarian malignancy. The role of cytopathology in obtaining tissue diagnosis before institution of neoadjuvant chemotherapy (NACT) was evaluated. METHODS:All histopathology-proven HGSC specimens between 2015 and 2018 with prior cytopathologic diagnosis by...
journal_title:American journal of clinical pathology
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doi:10.1093/ajcp/aqaa028
更新日期:2020-06-08 00:00:00
abstract::A case of unilateral gonadoblastoma in association with a ruptured ectopic tubal pregnancy is presented. The patient had normal menstrual history prior to a missed period followed by abdominal pain and the passage of clots. The surgical specimens, in addition to the ruptured tubal pregnancy, showed nodular foci of typ...
journal_title:American journal of clinical pathology
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更新日期:1976-01-01 00:00:00
abstract:OBJECTIVES:Preanalytical factors, such as hemolysis, affect many components of a test panel. Machine learning can be used to recognize these patterns, alerting clinicians and laboratories to potentially erroneous results. In particular, machine learning might identify which cases of elevated potassium from a point-of-c...
journal_title:American journal of clinical pathology
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doi:10.1093/ajcp/aqaa039
更新日期:2020-07-07 00:00:00
abstract::Reported is a case of a rare lymphoepithelial cyst of the tail of the pancreas that developed in a young man with no symptoms. To the authors' knowledge, it is the first case described to be entirely situated within the pancreas, thus confirming its pancreatic origin. Biologic behavior appears to be entirely benign, a...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
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更新日期:1992-08-01 00:00:00
abstract::Breast cancer is the result of a multistage carcinogenic process. Initiation, promotion, dependency and autonomy make up a sequence of experimentally distinguishable phases of this process. Progression--the transition from dependency on hormonal support to autonomy--is demonstrable clinically. High-affinity saturatabl...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1093/ajcp/64.6.797
更新日期:1975-12-01 00:00:00
abstract::A T-cell malignancy developed in a 64-year-old man with recurrent B-cell lymphoma after one and a half years of remission. Immunophenotypic and DNA analyses confirmed clonality and cell lineage of both lymphoid malignancies. Sequential development of B- and T-cell malignancies in this patient may be an example of bicl...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/92.3.362
更新日期:1989-09-01 00:00:00
abstract::The recent clinical and commercial success of anticancer antibodies such as rituximab and trastuzumab has created great interest in antibody-based therapeutics for hematopoietic malignant neoplasms and solid tumors. Given the likelihood of lower toxic effects of antibodies that target tumor cells and have limited impa...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
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更新日期:2003-04-01 00:00:00
abstract:OBJECTIVES:Human epidermal growth factor receptor 2 (HER2, ERBB2) testing is an important prognostic/predictive marker in breast cancer management, especially in selecting HER2-targeted treatment. American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guidelines address HER2 status and were...
journal_title:American journal of clinical pathology
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更新日期:2015-08-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1309/AJCPR3JTOK7NKDBJ
更新日期:2013-11-01 00:00:00
abstract::Malignant B-cell lymphomas represent a heterogenous group of lymphoreticular disorders that involve the skin in about 20% of reported cases. Skin involvement may be primary or secondary (ie, the result of hematogenous spread). Primary cutaneous B-cell lymphomas (PCBCLs) are thought to take a comparatively favorable co...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/106.6.749
更新日期:1996-12-01 00:00:00
abstract::The occurrence of antibodies belonging to IgG class of immunoglobulins with specificity for short ragweed and Bermuda grass in the sera of nonatopic subjects and patients with inhalant allergy (at the time of initial diagnosis, following specific immunotherapy was investigated with an enzyme immunoassay. The intra-ass...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/80.3.290
更新日期:1983-09-01 00:00:00
abstract::The pattern of spurious red blood cell parameters caused by serum cold agglutinins has been well characterized for the Coulter counters but not the Ortho ELT-8. The pattern consists of a spurious increase in mean corpuscular volume (MCV), a discrepancy between the hemoglobin and the hematocrit, the latter falsely redu...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/83.2.218
更新日期:1985-02-01 00:00:00
abstract::A new generation hematology analyzer, Abbott CELL-DYN 4000 (CD 4000), capable of providing 26 parameters, including fully automated reticulocyte, nucleated RBC, blast, band, and immature granulocyte, and variant lymphocyte counts, was evaluated by using the National Committee for Clinical Laboratory Standards H20-A pr...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/L7LC-6KKJ-12G2-196W
更新日期:2000-04-01 00:00:00
abstract:OBJECTIVES:The coronavirus disease 2019 pandemic has halted in-person medical student education in many large academic centers, including the University of Washington. We identified a unique opportunity to bring comprehensive and targeted anatomic pathology training to large numbers of medical students who would not re...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
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更新日期:2020-10-13 00:00:00
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journal_title:American journal of clinical pathology
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更新日期:2020-08-05 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
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更新日期:1976-11-01 00:00:00
abstract::Fixed lymphoma tissues from 11 patients seropositive for human T-cell leukemia virus type I (HTLV-I) antibodies were analyzed for proviral sequences by the polymerase chain reaction. Typical adult T-cell leukemia/lymphomas (ATLLs) from nine patients were positive for HTLV-I sequences. In contrast, one of two lymphomas...
journal_title:American journal of clinical pathology
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更新日期:1991-04-01 00:00:00
abstract::Human intravenous immunoglobulins prepared by the cold ethanol fractionation technique of Cohn are considered safe with respect to infectivity. However, there have been several instances of transmission of both hepatitis B and non-A,non-B hepatitis viruses after administration of intravenous immunoglobulins. To determ...
journal_title:American journal of clinical pathology
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更新日期:1992-01-01 00:00:00
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journal_title:American journal of clinical pathology
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doi:10.1309/AJCPR7EIQS8PIMLV
更新日期:2014-05-01 00:00:00
abstract::A patient who had masses in the breasts clinically suggestive of neoplasia had fibrous mastopathy and striking deposition of ochronotic pigment within the soft tissue of the breast. The gross appearance and light microscopic features are illustrated. The histochemical features of ochronotic pigment and the difficulty ...
journal_title:American journal of clinical pathology
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更新日期:1979-03-01 00:00:00
abstract::Patient red blood cell (RBC) index means, when used in quality control, form an independent standard that is as accurate and precise as preserved blood controls. If such patient data are routinely incorporated in intralaboratory and interlaboratory quality control programs, a substantial improvement in the present sta...
journal_title:American journal of clinical pathology
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更新日期:1986-08-01 00:00:00
abstract::Because of the unusual presentation of pernicious anemia in many black women, a further characterization of this disease among the different racial groups was undertaken. The following were found. (1) Black women under the age of 50 years had a significantly lower prevalence of anti-parietal cell antibody than did "Eu...
journal_title:American journal of clinical pathology
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更新日期:1981-03-01 00:00:00
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journal_title:American journal of clinical pathology
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更新日期:2004-07-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
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更新日期:2014-04-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
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更新日期:1978-05-01 00:00:00