Abstract：
:Drug testing of patients in a psychiatric outpatient service is an effective way to identify patients who relapse into renewed use of drugs of abuse and in monitoring the effectiveness of ongoing medical and psychological therapy. Most of this testing involves the analysis of urine specimens with immunoassays. Hair testing affords an alternative specimen matrix that is easy to obtain and not readily adulterated and offers the advantage of a wider surveillance window. Hair analysis is technically demanding, and the possibility of false-positives caused by environmental contamination renders it a controversial alternative. Sweat and saliva are potentially useful testing matrices, but their usefulness in clinical practice must await validation by additional clinical and laboratory experience. The correct interpretation of drug test results is predicated on knowing the performance characteristics of the analytical method, route of administration, and pharmacokinetics of the drug. All questionable positive results need confirmation testing to verify true positivity.
journal_name
Clin Lab Medjournal_title
Clinics in laboratory medicineauthors
Shearer DS,Baciewicz GJ,Kwong TCsubject
Has Abstractpub_date
1998-12-01 00:00:00pages
713-26issue
4eissn
0272-2712issn
1557-9832journal_volume
18pub_type
杂志文章,评审abstract：:Laboratory informatics is the application of computers and information systems to information management in the pathology laboratory. Effective information management is crucial to the success of pathologists and laboratorians. Informatics has become one of the key pillars of pathology, and the requirement for skilled...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2007.07.011
更新日期：2007-12-01 00:00:00
abstract：:One of the most vital functions of the vertebrates is to maintain hemostasis through coagulation and fibrinolysis. This is achieved by the interaction of vascular walls with blood components such as cells and proteins (coagulation factors, immunoglobulins, and complement). Deficiency of coagulation factors results in ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1986-03-01 00:00:00
abstract：:During the past 20 years, laboratory systems have evolved to a high degree of complexity. In some cases, continuing addition of new features has adversely affected functionality. There is increasing recognition that the number of features listed on a request for proposal does not necessarily provide an accurate guide ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1991-03-01 00:00:00
abstract：:Diabetes mellitus affects almost 16 million Americans. It has become a major public health problem and the number one cause of adult blindness, end-stage renal disease, and nontraumatic amputations in the United States. It also markedly increases the risk for cardiovascular, cerebrovascular, and peripheral artery dise...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：2001-03-01 00:00:00
abstract：:The search for clinical outcomes associated with antiphospholipid antibodies (aPL) has been ongoing for a decade. This article focuses on the clinical use of tests for the detection of aPL. A review of the current thinking regarding the pathophysiology of antiphospholipid syndromes is relevant to the discussion of dif...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1995-03-01 00:00:00
abstract：:Acute accidental iron poisoning is a common serious and potentially fatal intoxication in the young child. Approximately 1 per cent of such poisoning have a fatal outcome, and outcome is closely related to the early onset of coma or shock. Long-term prognosis is excellent for all survivors of the acute episode, althou...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1984-09-01 00:00:00
abstract：:The use of enzyme histochemical and immunohistochemical markers has improved our understanding of the biology of lymphoproliferative disorders. These same techniques can now provide practical information when applied to the diagnosis of lymphoproliferative disorders. ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1988-03-01 00:00:00
abstract：:Normal thermogenesis requires a complex interaction between systems that generate and dissipate heat. Serving as director of thermogenesis, the hypothalamus activates the sympathetic nervous system along with the thyroid and adrenal glands to respond to changes in body temperature. Working in concert, these systems re...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2006.01.007
更新日期：2006-03-01 00:00:00
abstract：:The antiphospholipid syndrome (APS) is an autoimmune disorder presenting with tissue injury in various organs attributed to large or small vessel thrombosis or, in some instances, possible nonthrombotic inflammatory mechanisms, associated with in vitro evidence of antibodies to certain proteins, or proteinphospholipid...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2009.06.001
更新日期：2009-06-01 00:00:00
abstract：:Direct-to-consumer genetic testing came on the scene 2 decades ago as a means for allowing consumers to access their genetic information without the involvement of a physician or genetic counselor. Results are delivered directly to the consumer, often leading to misinterpretation and needless medical interventions or ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2019.11.003
更新日期：2020-03-01 00:00:00
abstract：:The red cell indices of mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration have been standard methods of evaluating anemia since they were developed by Wintrobe in the 1930s. This article discusses the technical variabilities that have rendered the classic red cell indi...
journal_title：Clinics in laboratory medicine
pub_type： 历史文章,杂志文章,评审
doi：
更新日期：1993-12-01 00:00:00
abstract：:To overcome the significant mortality associated with ovarian cancer, a highly sensitive and specific screening test is urgently needed. CA-125 testing is used to monitor response to chemotherapy, detect recurrence, and detect late stage ovarian cancer. However, CA-125 testing, alone or in combination with ultrasonogr...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2009.02.001
更新日期：2009-03-01 00:00:00
abstract：:Technical aspects of rare-event detection are discussed in this article in a practical context, with two real-life examples. A growing number of flow cytometry-based assays depend on rare-event detection for basic science and clinical applications. ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2007.05.013
更新日期：2007-09-01 00:00:00
abstract：:The myelodysplastic syndromes are bone marrow stem cell disorders that result in disorderly and ineffective hematopoiesis. They are prognostically heterogenous. Approximately one third of cases evolve to acute myeloid leukemia. Many additional cases terminate in severe bone marrow failure. The French-American-British ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1990-12-01 00:00:00
abstract：:The combination of requirements for decreased turnaround time for hematology laboratory results and advances in technology have driven testing closer to the point of patient contact. This article provides an overview of the technologies available to measure hemoglobin, white blood cell counts, differentials, and CD4+ ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2014.10.009
更新日期：2015-03-01 00:00:00
abstract：:Diagnosis of invasive fungal pneumonias by conventional culture methods is difficult to assess and often delayed. Nonmolecular fungal markers have emerged as an important adjunctive tool to support their diagnosis in combination with other clinical, radiologic, and microbiological criteria of invasive fungal diseases....
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2014.02.006
更新日期：2014-06-01 00:00:00
abstract：:Cyclosporine (CsA) monitoring has remained controversial since the advent of the use of CsA in organ transplantation in the early 1980s. This article attempts to clarify for the clinical laboratory worker many of the vagaries associated with CsA monitoring by considering choice of sample matrix, the nature of metaboli...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1991-09-01 00:00:00
abstract：:Electron microscopy offers substantial aid in the diagnosis of gastrointestinal tract tumors, especially small-cell carcinoma and enterochromaffin-cell tumors. Tumors that are most difficult to classify by light microscopy--that is, poorly differentiated ones--may also have ultrastructural features by which the cell o...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1987-03-01 00:00:00
abstract：:The development of assay techniques for the analysis of tumor markers in tissue extracts and in the peripheral circulation has had a major impact on the diagnosis and management of patients with endocrine neoplasms. In addition to eutopic and ectopic hormones, a variety of other tumor-derived products, including endoc...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1990-03-01 00:00:00
abstract：:Methodologic aspects including causes of factitious hyperphosphatemia and hypophosphatemia are summarized. The differential diagnosis of hyperphosphatemia is reviewed under its three broad causes: decreased glomerular filtration rate, increased exogenous or endogenous phosphate load, and increased renal tubular phosph...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1993-03-01 00:00:00
abstract：:The category of provider-performed microscopy was defined in the Federal Register to provide a unique regulatory approach for bright-field and phase-contrast microscopy performed by a physician, dentist, or midlevel practitioner examining labile specimens. A CLIA certificate for this category of testing is available, ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章
doi：
更新日期：2001-06-01 00:00:00
abstract：:With the US Food and Drug Administration's recent label change of warfarin to include genetic testing for warfarin sensitivity, manufacturers are developing assays, and laboratories are offering testing. This article describes the genetic variants for which testing is available. Current technologies and assays are com...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2008.09.001
更新日期：2008-12-01 00:00:00
abstract：:This article reviews cytomorphology of rare malignant tumors of the breast: squamous carcinoma, metaplastic carcinoma, adenoid cystic carcinoma, apocrine carcinoma, secretory carcinoma, lipid-rich carcinoma, and carcinoma with choriocarcinomatous features. It is important to bear in mind the cytomorphology and diagnos...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2005.08.004
更新日期：2005-12-01 00:00:00
abstract：:Noninvasive genomic assessments of the fetus while in utero have been made possible by the analysis of cell-free fetal DNA fragments from the serum of pregnant women, as part of a noninvasive prenatal testing screening strategy. Between 7% and 10% of total cell-free DNA in the maternal blood comes from placental troph...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2016.01.018
更新日期：2016-06-01 00:00:00
abstract：:Image processing applications in forensic pathology are becoming increasingly important. This article introduces basic concepts in image processing as applied to problems in forensic pathology in a non-mathematical context. Discussions of contrast enhancement, digital encoding, compression, deblurring, and other topic...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1998-03-01 00:00:00
abstract：:Considerable advances have been made in identifying women whose pregnancies are at the greatest risk for fetal Down syndrome and other aneuploidies. Maternal serum tests and ultrasonography in either the first or second trimester provide effective prenatal screening. However, the most efficacious protocols are based o...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2010.04.013
更新日期：2010-09-01 00:00:00
abstract：:At the start of the twenty-first century, a dramatic change occurred in the clinical laboratory community. Concepts from Metrology, the science of measurement, began to be formally applied to clinical laboratory field methods, resulting in a new appreciation of metrological calibrator traceability. It is a change beca...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2016.09.010
更新日期：2017-03-01 00:00:00
abstract：:This article has presented information concerning the ultrastructural features and, to a lesser degree, the immunohistochemical characteristics of lung neoplasms. Electron microscopy and immunohistochemistry are useful techniques for diagnosing and understanding common and rare lung tumors. Electron microscopy is part...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1987-03-01 00:00:00
abstract：:This article describes a method for evaluating some of the medical, economic, and personal consequences of different policies of monitoring patients for various disorders. The problem is difficult because it is dynamic. Most conditions develop over time, and in many cases the sensitivity of the test as well as the cos...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1982-12-01 00:00:00
abstract：:To answer the question of whether reference values are useful in clinical decision-making, this article addresses the following major controversies: (1) Are reference subjects representative of the group from which they are selected? (2) To what extent should the process of collecting reference values be standardized ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章
doi：
更新日期：1984-03-01 00:00:00
