Abstract:
:Urine cultures represent 40-50% of specimens processed by hospital clinical microbiology laboratories. An accurate rapid screening method to detect positive urine cultures could greatly improve laboratory efficiency. Three hundred eighty-two unselected urines were screened by nephelometry at 2, 4, and 5 hours of shaking and incubation in Autobac cuvettes. Results were compared in parallel with standard quantitative-loop plate cultures of the same specimens. Fifty-eight of the 382 specimens showed significant positive (greater than or equal to 10(5) CFU/ml) standard plate cultures. Fifty-four of the 58 were positive at 4 hours by the nephelometric method (sensitivity 93%, 7% false negatives). Plate cultures of the four false negative specimens grew greater than 10(5) CFU/ml Candida (two specimens), Staphylococcus epidermidis or diphtheroids (one specimen each) and represented colonization or contamination without evidence of infection. For 324 specimens negative by plate culture, nephelometry was negative in 287 (89% specificity or 11% false positives). Overall predictive value of a negative test was 99%. Results were comparable for clean-voided or catheterized specimens. The rapid nephelometric urine culture method gave significant savings of material and time.
journal_name
Am J Clin Patholjournal_title
American journal of clinical pathologyauthors
Heinz T,Pezzlo M,Thrupp Ldoi
10.1093/ajcp/77.3.305subject
Has Abstractpub_date
1982-03-01 00:00:00pages
305-11issue
3eissn
0002-9173issn
1943-7722journal_volume
77pub_type
杂志文章abstract::The diagnostic value of glypican 3 (GPC3) immunostaining on needle biopsy specimens has not been well assessed. In this study, 120 liver needle biopsy specimens, including 46 from cirrhotic livers and 74 hepatocellular carcinomas (HCCs), were immunohistochemically examined for expression of GPC3. The results showed st...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/WMB5PX57Y4P8QCTY
更新日期:2008-08-01 00:00:00
abstract::A method using the RNA polymerase chain reaction technique to diagnose infection retrospectively using single-stranded RNA enteroviruses in paraffin-embedded tissue blocks is reported. This method takes advantage of extreme sequence conservation in the 5' untranslated region of the enteroviral genome and uses two roun...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/96.5.568
更新日期:1991-11-01 00:00:00
abstract::Oxidized low-density lipoprotein (oxLDL)/beta(2)-glycoprotein I (beta2GPI) complexes have been implicated in atherogenesis. oxLDL/beta2GPI complexes were measured in 339 patients with suspected acute coronary syndromes. Approximately 68% had angiographically documented coronary artery disease (CAD) and significantly h...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCP88WVRDRDFBAS
更新日期:2010-05-01 00:00:00
abstract::The May-Hegglin anomaly is one of the rare forms of heriditary thrombocytopenia. Since fewer than 100 cases of May-Hegglin anomaly have been described to date, major controversies regarding the adequacy of hemostasis in vivo and abnormalities of platelet function in vitro continue to prevail. This report describes the...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/74.5.663
更新日期:1980-11-01 00:00:00
abstract::The effects of physiologic temperature variations on antibiotic-induced killing of Escherichia coli, Pseudomonas aeruginosa, Streptococcus faecalis, and Streptococcus pneumoniae were studied. At concentrations less than or equal to four times the minimal bactericidal concentration, the activity of each of the antibiot...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/76.1.57
更新日期:1981-07-01 00:00:00
abstract::Upon hospital admission a patient was found to have severe anemia and a strongly positive direct antiglobulin test (DAT). The patient was taking probenecid periodically for gout. An antibody was detected in the patient's serum that only reacted with red blood cells (RBCs) when probenecid was added. Eluates from the pa...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/84.3.391
更新日期:1985-09-01 00:00:00
abstract::Micropapillary lung adenocarcinoma (MPA) has been reported as an aggressive variant of adenocarcinoma, frequently manifesting at high stage with a poor prognosis. We analyzed the clinical and molecular profile of 15 primary MPAs for K-ras, EGFR, and BRAF mutations and performed fluorescence in situ hybridization for E...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPBS85VJEOBPDO
更新日期:2009-05-01 00:00:00
abstract::Mechanical release of single cell suspensions from solid tumors for DNA analysis by flow cytometry has been shown to be optimal for adenocarcinomas in general. In the breast, many adenocarcinomas are fibrotic or scirrhous, creating difficulty in separating the neoplastic cells from the stroma. The authors have conduct...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/103.1.8
更新日期:1995-01-01 00:00:00
abstract:OBJECTIVES:The objective of this research was to determine test intervals between intraoperator case reviews to minimize the impact of recall. METHODS:Three pathologists were presented with a group of 120 slides and subsequently challenged with a study set of 120 slides after 2-week and 4-week intervals. The challenge...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPUC3TYMS3QOBM
更新日期:2015-03-01 00:00:00
abstract::We retrospectively reviewed the immunophenotypic profile of 75 cases of lymphoplasmacytic lymphoma/Waldenström macroglobulinemia (LPL/WM) analyzed by flow cytometry. All patients had monoclonal IgM (median, 2,100 mg/dL [21 g/L]) in serum and were considered clinically to have WM. The neoplastic cells, in all cases, ex...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/3G1X-DX0D-VHBN-VKB4
更新日期:2005-09-01 00:00:00
abstract::Several laboratory methods are currently available for the detection of barbiturates, but few are suitable for emergency use, The authors evaluated use of an ultraviolet spectrophotometric method as a screening procedure and compared the results with results obtained by other barbiturate methods (colorimetric, gas-li...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/66.5.823
更新日期:1976-11-01 00:00:00
abstract:OBJECTIVES:Serologic testing for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has experienced a changing landscape of available assays coupled with uncertainty surrounding performance characteristics. Studies are needed to directly compare multiple commercially available assays. METHODS:Residual serum ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqaa200
更新日期:2020-10-09 00:00:00
abstract::To establish the effect of a quality control failure on the performance of the LCx-GC nucleic-acid amplification assay for Neisseria gonorrhoeae (Abbott Laboratories, Abbott Park, IL) in the field, we conducted a retrospective analysis comparing the clinical and analytic performance of the recalled lots with those not...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/1LD8-LU7Y-FFW7-5WQA
更新日期:2005-06-01 00:00:00
abstract::Pancreatic adenocarcinoma is believed to develop from histologically identifiable intraductal lesions known as pancreatic intraepithelial neoplasias (PanINs) that undergo a series of architectural, cytologic, and genetic changes, a progression model similar to the adenoma-carcinoma sequence in the colon. The apomucin ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/7Y7N-M1WM-R0YK-M2VA
更新日期:2002-05-01 00:00:00
abstract::We developed anecdotal evidence that parenteral iron therapy is associated with a characteristic pattern of iron staining in bone marrow aspirate smears. In this pattern, uniform blue granules are observed within reticuloendothelial cells/stromal cells with Prussian blue staining, many times in curvilinear arrays. To ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/WEDK7D1P7YPT8G0F
更新日期:2007-10-01 00:00:00
abstract::Using digital cell image analysis performed on Feulgen-stained nuclei, the nuclear characteristics of prostatic neoplasia, ranging from benign (benign prostatic hyperplasia [BPH]), through dysplastic (prostatic intraepithelial neoplasia [PIN] 1-3), to carcinoma were studied. Four histopathologic groups were studied: g...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/96.5.628
更新日期:1991-11-01 00:00:00
abstract::Estrogen receptor (ER) status of breast carcinomas determines prognosis and treatment. Biochemical ER assays are expensive and time-consuming and require fresh tumor. Immunohistochemical ER was assessed in 68 breast carcinomas, by an automated method using routinely processed formalin-fixed paraffin-embedded tissues, ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/92.5.669
更新日期:1989-11-01 00:00:00
abstract:OBJECTIVES:To support our Lean culture of continuous improvement, we implemented a daily management system designed so critical metrics of operational success were the focus of local teams to drive improvements. METHODS:We innovated a standardized visual daily management board composed of metric categories of Quality,...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPLQYMOFWU31CK
更新日期:2015-07-01 00:00:00
abstract::The cell cycle consists of an initial growth phase (G1), DNA replication (S), a gap phase (G2), and mitosis (M), after which the cell may differentiate or enter the resting state (G0). The cycle is driven by a number of positive and negative regulatory phosphorylation and dephosphorylation events, involving protein ki...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:
更新日期:1999-07-01 00:00:00
abstract::Several authors have suggested that a plausible mechanism for variation in reported mean corpuscular volume (MCV) and hematocrit values for Hematology Survey Specimens may be due to the presence of hyperglycemia in the suspending matrix of the specimens, resulting in cell swelling due to an osmotic matrix effect. The ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:
更新日期:1983-10-01 00:00:00
abstract::A primary hepatic tumor with histologic features suggestive of carcinoid tumor is reported, and six previously reported cases reviewed. Tumor cells contained electron dense secretory granules with an average diameter 150-200 nm which demonstrated positive argyrophilic reactions. On immunohistochemistry, chromogranin A...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/89.4.561
更新日期:1988-04-01 00:00:00
abstract::Thirty drugs used primarily in critical care and hospital settings were tested in vitro to observe interference on glucose measurements with 6 hand-held glucose meters and a portable glucose analyzer. Paired differences of glucose measurements between drug-spiked samples and unspiked control samples were calculated to...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/QAW1-X5XW-BVRQ-5LKQ
更新日期:2000-01-01 00:00:00
abstract:Objectives:To curtail inappropriate plasma transfusions, we instituted clinical decision support as an alert upon order entry if the patient's recent international normalized ratio (INR) was 1.7 or less. Methods:The alert was suppressed for massive transfusion and within operative or apheresis settings. The plasma ord...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqx061
更新日期:2017-08-01 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::Counterimmunoelectrophoresis was used to detect Cryptococcus neoformans capsular polysaccharide in the body fluids of infected patients. Using rabbit anti-C. neoformans A15 globulin, counterimmunoelectrophoresis detected 1.25 microgram of purified cryptococcal polysaccharide per ml of cerebrospinal fluid (CSF) or urin...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/68.1.39
更新日期:1977-07-01 00:00:00
abstract::Evaluation of blood cells to determine immunologic status is becoming an important clinical application of flow cytometric analysis. For a wider use of immunophenotyping technology in clinical laboratories, the authors developed a rapid method to detect monoclonal antibody-labeled cells using forward light scatter/abs...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/97.3.331
更新日期:1992-03-01 00:00:00
abstract::The authors report a case of metastatic prostate cancer masquerading as a primary lung tumor. Histologically, the lung tumor displayed eosinophilic crystalloids in the malignant glands typical of those previously described in prostatic adenocarcinoma. Review of histologic material from 30 additional patients with meta...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/101.3.266
更新日期:1994-03-01 00:00:00
abstract:Objectives:According to current guidelines, either immunohistochemistry (IHC) or in situ hybridization (ISH) can be used to determine human epidermal growth factor receptor 2 (Her2/neu) status in breast carcinoma. While the guidelines explicitly delineate result interpretation, there is no consensus on the most appropr...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqw224
更新日期:2017-04-01 00:00:00
abstract::The evaluation of quality control (QC) practices from the College of American Pathologists (CAP) Microbiology Surveys demonstrates a trend away from daily controls similar to that first noted in 1980. Previous recommendations for more relevant cost-containment oriented weekly QC procedures are discussed, and the 1982 ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:
更新日期:1983-10-01 00:00:00
abstract::Absolute lymphocytosis after nonsurgical trauma was investigated in three patient groups at an acute-care tertiary referral hospital. The first group, with mild-to-moderate trauma, consisted of 64 patients who survived knife wounds to the chest and abdomen. Thirteen of the 64 patients had admission lymphocyte counts g...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/86.4.480
更新日期:1986-10-01 00:00:00