Abstract：
:The clinical diagnosis and management of thyroid hormone excess and deficiency are dependent on accurate laboratory measurements and the interpretation of serum free T4 and TSH values. A variety of free T4 methods are available that perform well in otherwise healthy patients with hypothyroidism or hyperthyroidism and in euthyroid subjects with mild alterations of T4 binding to serum-carrier proteins. In contrast, only free T4 values by direct equilibrium dialysis, a method that is available in larger clinical laboratories, and ultrafiltration of undiluted sera, which is a research method, provide appropriate free T4 values in the majority of patients with significant alterations of serum T4 binding, including severe nonthyroidal illnesses. In patients with a normal pituitary-thyroid hormone axis, an inverse log10-linear relationship exists between serum TSH and free T4 levels; a decreased direct equilibrium dialysis free T4 value with an elevated TSH level confirms the diagnosis of primary hypothyroidism, and an increased free T4 value with a TSH level less than 0.01 mU/L is consistent with nonpituitary hyperthyroidism. When this relationship is altered, as in nonthyroidal illnesses, TSH secreting tumors and thyroid hormone resistant states, a direct equilibrium dialysis free T4 level plus a third-generation TSH assay is the most sensitive and specific approach to diagnose thyroid hormone excess or deficiency. Use of other free T4 methods in patients with significant alterations of serum T4 binding results in a variably increased frequency of false-positive values, which require additional testing to define the thyroid hormone status.
journal_name
Clin Lab Medjournal_title
Clinics in laboratory medicineauthors
Kaptein EMsubject
Has Abstractpub_date
1993-09-01 00:00:00pages
653-72issue
3eissn
0272-2712issn
1557-9832journal_volume
13pub_type
杂志文章,评审abstract：:Certain serum autoantibodies serve as useful diagnostic markers in AiLD; however, the etiology and pathogenesis of AiLD remain unknown. Although AiLD is characterized by the presence of autoantibodies and other humoral immune abnormalities, there is significant evidence that cell-mediated immune mechanisms are critica...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1997-09-01 00:00:00
abstract：:The 2014 to 2016 Ebola virus disease (EVD), through the sheer size of the outbreak and combined experience within both resource-rich and resource-poor settings, allowed for more information to be gained about the clinical and pathologic features of EVD. This review highlights the range of aspects of EVD that the autho...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2017.01.003
更新日期：2017-06-01 00:00:00
abstract：:The coccidians Cryptosporidium spp, Cyclospora cayetanensis, and Cystoisospora belli and the flagellate Giardia duodenalis are pathogenic protozoa associated with gastrointestinal manifestations. Diagnosis relies heavily on microscopy, and although ova-and-parasite examinations can detect Giardia and Cystoisospora, Cr...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2015.02.010
更新日期：2015-06-01 00:00:00
abstract：:A formal therapeutic drug monitoring consultation service (TDMCS) will enhance the clinical benefits of drug level determinations. It can result in decreased length of stay and improved risk management posture. The successful implementation of a TDMCS requires the coordinated efforts of a multidisciplinary team that m...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1987-06-01 00:00:00
abstract：:The cause of colorectal cancer (CRC) is multifactorial, with genetic, molecular, inflammatory, and environmental risk factors. Recently, the gut microbiota has been recognized as a new environmental contributor to CRC in both animal models and human studies. An additional interplay of the gut microbiome with inflammat...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2014.08.002
更新日期：2014-12-01 00:00:00
abstract：:Large-scale clinical databases provide a detailed perspective on patient phenotype in disease and the characteristics of health care processes. Important information is often contained in the relationships between the values and timestamps of sequences of clinical data. The analysis of clinical time sequence data acro...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章
doi：10.1016/j.cll.2007.10.005
更新日期：2008-03-01 00:00:00
abstract：:Shiga toxin-producing Escherichia coli (STEC) are important enteric pathogens worldwide, causing diarrhea with or without blood visibly present and hemolytic uremic syndrome. STEC are unique among diarrheogenic E coli in producing Shiga toxin type 1 and type 2, the virulence factors responsible for bloody diarrhea and...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2009.11.001
更新日期：2010-03-01 00:00:00
abstract：:An ideal immunohistochemical screening panel would be one in which each antibody is 100% sensitive and specific for the target cell type (e.g., markers for epithelial neoplasms, lymphomas, sarcomas, etc.). Anyone who has practiced immunochemistry is well aware that this situation does not exist. High sensitivity is hi...
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：:Acute erythroleukemia is an aggressive leukemia derived from a multipotential stem cell. Three subtypes have been described: (1) M6a with greater than or equal to 30% blasts of the nonerythrocytic component, (2) M6b with greater than or equal to 30% pronormoblasts of the erythrocytic elements, and (3) M6c with greater...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：2000-03-01 00:00:00
abstract：:Fine needle aspiration biopsy (FNAB) is the diagnostic procedure of choice for evaluation of liver lesions. Although primarily applied to malignant disease, it is also used in the evaluation of benign conditions. Improvements in imaging techniques and advances in cytologic interpretations, as well as production of new...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1998-09-01 00:00:00
abstract：:Pet guinea pigs are presented to veterinary clinics for routine care and treatment of clinical diseases. In addition to obtaining clinical history and exam findings, diagnostic testing may be required, including hematological assessments. This article describes common blood collection methods, including venipuncture s...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2015.05.012
更新日期：2015-09-01 00:00:00
abstract：:Autoimmune aPL are associated with a well-defined clinical syndrome of vascular thromboses, recurrent fetal loss, thrombocytopenia, livedo reticularis, and valvular and neurologic abnormalities. A clinical diagnosis of SLE need not be present, and aPL syndrome in the absence of other well-defined autoimmune disease is...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1992-03-01 00:00:00
abstract：:Laboratory information systems (LISs) supply mission-critical capabilities for the vast array of information-processing needs of modern laboratories. LIS architectures include mainframe, client-server, and thin client configurations. The LIS database software manages a laboratory's data. LIS dictionaries are database ...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2015.09.002
更新日期：2016-03-01 00:00:00
abstract：:With emerging antimicrobial resistance, rapid antimicrobial susceptibility testing (AST) is needed to provide early definitive therapeutic guidance to optimize patient outcome. Genotypic methods are fast, but can identify only a subset of known resistance elements. Phenotypic methods determine clinically predictive mi...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2019.04.001
更新日期：2019-09-01 00:00:00
abstract：:Variation in the genome of hepatitis B virus has been associated with a number of clinical parameters, but there is a paucity of functional data to show a causal relationship. For example, variants of the core and X genes have been linked with the pathogenesis of chronic hepatitis, viral replication efficiency, and se...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1996-06-01 00:00:00
abstract：:An exciting era exists as a result of the introduction of novel markers of myocardial damage. The prognostic implications of troponins, even in the setting of "minor myocardial damage," are potentially of immense value to patient care. We need to take the next step and assess the outcomes of interventions in these set...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1997-12-01 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：:There is growing evidence supporting the genetic variability outside of HLA system that is contributing to the variation in transplant outcomes. Determining novel predictors could help to identify patients at risk and tailor their immunosuppressive regimens. This article discusses the various single nucleotide polymor...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2018.10.002
更新日期：2019-03-01 00:00:00
abstract：:Cannabis, or marijuana, has been known and used as a drug for many thousands of years. Recent interest in drug abuse and detection has spurred the development of several methodologies for cannabinoid detection. These methods include immunoassays and chromatography. Laboratories routinely performing cannabinoid testing...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1987-09-01 00:00:00
abstract：:Transgenic mice that contain a proline to leucine mutation at amino acid 101 in the endogenous murine PrP gene have been produced by gene targeting. This line of mice was generated to model the mutation thought to be responsible for P102L GSS, a familial TSE disease in humans. Genetargeted 101LL mice showed no evidenc...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/s0272-2712(02)00067-7
更新日期：2003-03-01 00:00:00
abstract：:Existing psychotropic medications for the treatment of mental illnesses, including antidepressants, mood stabilizers, and antipsychotics, are clinically suboptimal. They are effective in only a subset of patients or produce partial responses, and they are often associated with debilitating side effects that discourage...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章
doi：10.1016/j.cll.2010.07.004
更新日期：2010-12-01 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
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：:From the inception of TBS in 1988, it has been well received by the pathology and clinical communities. The need for a unifying system of nomenclature was so great that most of the laboratories in the United States, as well as in numerous countries worldwide, quickly adopted TBS. By 1991, only 2 years after the initia...
journal_title：Clinics in laboratory medicine
pub_type： 共识发展会议,杂志文章,评审
doi：10.1016/s0272-2712(03)00053-2
更新日期：2003-09-01 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：:An obvious advantage of a combined PAP and PSA measurement is the increased sensitivity of detection. Furthermore, the use of both markers in monitoring patients with prostatic carcinoma offers the advantage of a greater number of patients with objective parameters for follow-up. ...
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：:This article focuses on current clinical laboratory testing to diagnose Alzheimer disease and monitor its progression throughout its disease course. Several clinically available tests focus on analysis of amyloid and tau levels in cerebrospinal fluid as well as autosomal dominant and risk factor genes. Although the cu...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：10.1016/j.cll.2020.05.003
更新日期：2020-09-01 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：:This article reviews the laboratory methodologies used to evaluate acute lymphoblastic leukemia (ALL) in children and their role in establishing a diagnosis and prognosis of this disease. These methodologies are: morphology, flow cytometry, cytogenetics, and molecular diagnostics. Additionally, immunophenotypic classi...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：1999-03-01 00:00:00
abstract：:A rapidly increasing body of evidence links human papillomavirus (HPV) to cervical neoplasia through epidemiologic associations, pathologic features, molecular detection, and mechanisms of oncogenesis. HPV is now accepted as the primary cause of cervical neoplasia and accounts for most of the risk factors traditionall...
journal_title：Clinics in laboratory medicine
pub_type： 杂志文章,评审
doi：
更新日期：2000-06-01 00:00:00
