Abstract：
:Point-of-care testing (POCT) has been used for illicit substance screening in several settings, primarily in law enforcement and drug treatment centers. In this study, we evaluate the use of this screening approach in the emergency department (ED) of a tertiary-care, urban medical center. Aliquots of urine specimens were tested simultaneously by a POCT device (OnTrak) and by a laboratory-based screening system (Triage). The outcomes that were compared included (a) time to completion of test, (b) time until the physician received the results, and (c) concordance of results obtained by the two analytical methods. The study population included pediatric (< or = 21 yr) and adult (>21 yr) patients; data from 170 subjects were evaluated. We observed significant reductions (p < 0.001) in turnaround time (both the time to completion and the time to physician). Concordance between the results obtained by the two analytical methods was excellent (97% agreement for cocaine; 99% agreement for marijuana, opiates, and amphetamines, p < 0.001 for all categories). Cost analysis showed at least 37.5% decrease in cost per analyte when urine samples were tested by the POCT device, compared to the laboratory-based screening system. We conclude that POCT for drugs of abuse in the ED was equally effective, less costly, and more rapid than the laboratory-based screening system.
journal_name
Ann Clin Lab Scijournal_title
Annals of clinical and laboratory scienceauthors
Mastrovitch TA,Bithoney WG,DeBari VA,Nina AGsubject
Has Abstractpub_date
2002-10-01 00:00:00pages
383-6issue
4eissn
0091-7370issn
1550-8080journal_volume
32pub_type
杂志文章abstract：:In the past, necrotizing vasculitis has been considered to be one of the dominant intrarenal vascular abnormalities in systemic lupus erythematosus (SLE). To test the validity of this statement, 70 consecutive renal biopsies from patients with SLE were reviewed. Light microscopy (LM) and immunofluorescence (IF) studie...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1990-03-01 00:00:00
abstract：:Various fungal products, such as gliotoxin (GT), have immunomodulating activity, a fact exploited previously by our group for prevention of autoimmune diabetes mellitus in BB/Wor rats. To understand better the immunologic effects in GT-treated rats, splenocytes from 65-day-old prediabetic diabetes-prone rats were phen...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2000-10-01 00:00:00
abstract：:Erythropoietin is a hormone produced by the kidneys and by certain extrarenal tissues and released into the circulation in response to tissue hypoxia. Its study has provided new information about oxygen transport and bone marrow stem cell function and its determination in plasma can give valuable diagnostic clues as t...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1980-05-01 00:00:00
abstract：GOALS:Rheumatoid arthritis (RA) is a chronic inflammatory joint disease. The α enolase is a nuclear glycolytic enzyme. Antibodies to citrullinated-enolase peptide1(anti-CEP-1) are found in approximately 40% of patients with RA, but the diagnostic value of anti-CEP-1 for RA is not clear. METHODS:We enrolled 282 patient...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2019-09-01 00:00:00
abstract：:While pathogenic T cells have been identified for several diseases with epithelial cell damage, an autoimmune T cell-mediated response targeted against a known keratinocyte antigen has not been reported. Previously we described an autoimmune response directed to the mouse epidermal cell antigens, Skn. For our murine m...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2002-04-01 00:00:00
abstract：:D-dimer is formed during activation of the coagulation system and is commonly assayed in order to diagnose disseminated intravascular coagulation, deep vein thrombosis, and pulmonary embolism. Enzyme-linked immunosorbent assay has been validated as the reference method, but it is a time-consuming procedure. The object...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2011-10-01 00:00:00
abstract：:A quality control program of analyses of toxic metals in urine has been carried out in the Nordic countries since 1978. In connection with these programs, the advantages and disadvantages of lyophilized compared to natural urine specimens as control materials have been investigated in three successive similar studies....
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1987-05-01 00:00:00
abstract：:Lung cancer is the leading cause of cancer-related death worldwide. Lung adenocarcinoma (AC) cases account for approximately 40% of lung cancers. Early diagnosis can reduce mortality, improve prognosis, prolong survival, and improve quality of life. Specific and stable biomarkers for early diagnosis of AC are still la...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2018-11-01 00:00:00
abstract：:The most common ultrastructural features of endocrine tumors are reviewed. The diagnostic applications of the electron microscope are illustrated by citation of case histories. ...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1979-03-01 00:00:00
abstract：:Testing of blood for antibodies to the human immunodeficiency virus type 2 (HIV2) has begun. A major benefit of this testing will be the elimination of the exclusion of blood donors on the basis of geographic origin. Will this test be helpful? Present anti-HIV1 testing detects between 60 to 90 percent of those samples...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1992-09-01 00:00:00
abstract：:Increased red cell lipid peroxidation (LP) occurs in the presence of ionized iron, as well as with various heme moieties and other transition metal ions. In stored erythrocytes, the degree of LP, as determined by plasma malondialdehyde measurements, can be significantly reduced by the addition of various metal chelati...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1993-09-01 00:00:00
abstract：:The presence of effusion in association with multiple myeloma or macroglobulinemia is an unusual finding which generally occurs late in the course of the disease. Occasionally, cytoligic detection is a diagnostic problem. In both conditions, the fluid is characrerized by a high specific gravity and high protein conten...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1978-01-01 00:00:00
abstract：:Laboratory testing for markers of thyroid function is essential for the diagnosis of thyroid disease, yet, the landscape of thyroid function testing is complex and inappropriate test orders are common. Reverse T3 (rT3) is frequently seen on thyroid function testing menus as a marker of nonthyroidal illness. However, t...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2020-05-01 00:00:00
abstract：:Alterations in ion transport have been implicated in the pathogenesis of several disease states. Methods of studying ion transport, however, are rather tedious, time consuming and not well defined in terms of kinetics and reproducibility. This paper describes a rapid, simple method of examining ion transport in intact...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1981-03-01 00:00:00
abstract：OBJECTIVES:An increasing number of studies have pointed out the side effects of valproic acid (VPA), an antiepileptic drug used for the treatment of seizures in children and adults. The aim of this study is to evaluate whether VPA interferes with oxidative metabolism in the heart and whether edaravone, the novel free r...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2015-04-01 00:00:00
abstract：:The expression of programmed cell death 1-ligand 1 (PD-L1) by tumor cells acts as an immune-checkpoint when it interacts with its receptor on immune cells, effectively preventing the immune system from attacking the tumor. Inhibitors against PD-L1 have shown remarkable therapeutic activity in non-small cell lung cance...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2019-05-01 00:00:00
abstract：:BCR/ABL1 transcripts, the molecular hallmarks of chronic myeloid leukemia (CML), have been detected in peripheral blood from healthy individuals. Although CML is a sporadic disease, familial occurrence has been reported. This raises the question of whether there is a hereditary factor related to the etiology of CML. O...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2019-11-01 00:00:00
abstract：:In vitro determination of specific IgE antibodies in serum is the most frequently used method, besides the skin test, for diagnosing allergies. Standardized and reproducible assays of specific IgE antibodies contribute to the quality of diagnosis and treatment of allergic disease. This study compared the results and p...
journal_title：Annals of clinical and laboratory science
pub_type： 临床试验,杂志文章
doi：
更新日期：2005-07-01 00:00:00
abstract：:The anucleate mature erythrocyte also lacks ribosomes and mitochondria and thus cannot synthesize enzymes or derive energy from the Krebs citric acid cycle. Nevertheless, the red blood cell is metabolically active and contains numerous residual enzymes and their products which are essential for its survival and normal...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章,评审
doi：
更新日期：1980-09-01 00:00:00
abstract：:The purposes of this work are to: review the biological activities of Interleukin-2 (IL-2); evaluate the reported therapeutic benefits and toxicity of IL-2/lymphokine activated killer (LAK) cells; and project the role of IL-2/LAK cells in cancer therapy. Interleukin-2 is a glycoprotein lymphokine (mw 15,000) produced ...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章,评审
doi：
更新日期：1989-01-01 00:00:00
abstract：:Toll-like receptors (TLR) activation is thought to modulate the macrophage cholesterol efflux and contribute to the atherosclerosis progression; however, the precise pathophysiological mechanism remains unclear. We investigated the effects of TLR2- and TLR4-activation on the expression of the ATP-binding cassette (ABC...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2017-08-01 00:00:00
abstract：:The literature was reviewed to investigate the existence of unique gastrointestinal (GI) pathological lesions in sickle-cell disease (SCD). Chole- and choledocholithiasis have long been recognized, but bilirubin gallstones can occur in any chronic hemolytic anemia. Acute pancreatitis has been reported as a possible is...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章,评审
doi：
更新日期：1998-01-01 00:00:00
abstract：:Four commercial assays for the screening of cannabinoids in urine were compared. Urine specimens from 93 selected subjects were run by fluorescence polarization immunoassay on the Abbott TDx; by enzyme multiplied immunoassay with two Syva EMIT assays; and by thin-layer chromatography with the TOXI-LAB system (Marion L...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1989-03-01 00:00:00
abstract：:To identify markers sensitive to inhibitors of the farnesylation pathway, we used 3 breast cancer cell lines (SKBR-3, MDA-175, and MDA-231) to evaluate the in vitro effects of pamidronate, an inhibitor of farnesyl diphosphate synthase. In response to pamidronate, there was significant inhibition of cell proliferation ...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2004-07-01 00:00:00
abstract：:Screening programs using determinations of serum thyroxine have demonstrated that congenital hypothyroidism occurs in one in 4,000 live births in North America. More than 90 percent of affected infants have primary hypothyroidism with elevated plasma thyrotropin (TSH) levels. Since the feasibility of newborn screening...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：:We report 2 patients who presented with vasomotor symptoms and severe thrombocytopenia following rattlesnake bites. These symptoms persisted in spite of treatment with antivenin and transfusion of multiple doses of platelets. Thrombocytopenia is a common occurrence in moderate to severe crotaline envenomation. Algorit...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2004-10-01 00:00:00
abstract：BACKGROUND:Human mammary tumor virus (HMTV) is 90-95% homologous to mouse mammary tumor virus, one of the causal agents of murine mammary tumors. Although HMTV has been frequently detected in human breast cancers, its clinical and prognostic value remains unknown. METHODS:In the present study, we analyzed HMTV infecti...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2019-03-01 00:00:00
abstract：:Neuropeptide modulation of hematopoietic stem cell differentiation was studied in an in vitro murine system. Endorphins were able to influence the erythropoietin-dependent differentiation of bone marrow cells into erythroid colony forming units in a dose dependent manner. The effects on progenitor cell maturation were...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1987-09-01 00:00:00
abstract：:Pseudoparaproteins were observed in 129 (10.5%) of 1,229 high resolution protein electrophoretic fractionations of serum (N = 847), urine (N = 368), or cerebrospinal fluid (N = 14) performed in this laboratory during a 12-month period. The pseudoparaproteins identified in serum electrophoretic patterns included fibrin...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2000-07-01 00:00:00
abstract：:Apolipoprotein (apo) E, like beta-amyloid (Abeta), is a key component of the senile plaques that characterize Alzheimer's disease (AD). Understanding how apoE participates in the formation of senile plaques is necessary to clarify the pathogenesis of AD; however, the mechanism remains unknown. In this study, we invest...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
