Abstract:
BACKGROUND:With the recent outbreak in West Africa, hospitals worldwide have been developing protocols for suspect of cases of Ebola virus disease. Patients with Ebola virus disease present with a severe gastroenteritis leading to dehydration and electrolyte abnormalities and as such, routine chemistry analysis is essential for patient management. While point-of-care testing can be used with additional precautions for rapid chemistry analyses in a laboratory setting, significant delays could ensue before specimens arrive to the laboratory. This study evaluated the stability of eight chemistry analytes up to 4 h post-collection. METHODS:Blood was collected by venipuncture from 20 healthy volunteers and tested at times 0, 30, 60, 90, 120 and 240 h. Approximately 100 µl of blood was dispensed into a CHEM 8+Cartridge and processed on a model 300 i-STAT 1 Analyzer (Abbott Point of Care Inc.) and ANOVA was used to assess statistical significant difference from the initial time point. RESULTS:While the manufacturer recommends testing within 30 min of collection, no significant variation was observed for most analytes with time points extending up to 4 h. In contrast, glucose concentrations decreased significantly (P < 0.0001) over time at an average rate of 0.0032 mmol/L per min. CONCLUSIONS:This study provides supporting data suggesting that delays up to 4 h can be tolerated, giving ample time for collection and transport of specimens to the clinical laboratory. For glucose, POC testing could still be used, taking into account the collection time and the average rate of decrease.
journal_name
Ann Clin Biochemjournal_title
Annals of clinical biochemistryauthors
LeBlanc JJ,Heinstein C,MacDonald J,Gallant R,Roberts C,Jackson C,Lou A,Nassar BA,Hatchette TFdoi
10.1177/0004563215581651subject
Has Abstractpub_date
2016-03-01 00:00:00pages
288-91issue
Pt 2eissn
0004-5632issn
1758-1001pii
0004563215581651journal_volume
53pub_type
杂志文章abstract::The analytical and biological components of variation of total cholesterol, high density lipoprotein (HDL) cholesterol, HDL3 cholesterol, HDL2 cholesterol and apolipoproteins A-I and B in serum were assessed in 12 apparently healthy individuals. All analytes showed marked individuality and therefore conventional popul...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328902600314
更新日期:1989-05-01 00:00:00
abstract::Thyroglobulin (Tg) is a tumour marker for differentiated thyroid cancer. Interpretation requires a knowledge of the current thyrotropin (TSH) concentration as secretion is TSH-dependent. While a raised serum Tg may be indicative of residual or recurrent thyroid cancer, trauma to the thyroid (e.g. surgical, biopsy or d...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章,评审
doi:10.1258/acb.2011.011248
更新日期:2012-07-01 00:00:00
abstract::Addison's disease is a relatively common disorder to endocrinologists, but is rare and potentially fatal when presenting acutely. Treatment now involves replacement of glucocorticoids and mineralocorticoids with synthetic compounds, although historically patients took common salt and plant-based preparations. We descr...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/000456307780945624
更新日期:2007-07-01 00:00:00
abstract::Experience in the use of an in-house urinary free catecholamine assay for the investigation of possible neural crest tumours in a District General Hospital laboratory is described. Elevated excretion of catecholamines and vanillylmandelic acid was found in a number of cases including phaeochromocytoma and neuroblastom...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328702400512
更新日期:1987-09-01 00:00:00
abstract:PURPOSE:We assessed erythrocyte sedimentation rate and high-sensitivity C-reactive protein concentration in knee osteoarthritis and non-knee osteoarthritis. In addition, we investigated potential relationship between the levels of erythrocyte sedimentation rate and high-sensitivity C-reactive protein with clinical find...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/0004563215610142
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Apolipoprotein concentrations in reflex tears from healthy and noninsulin-dependent diabetes mellitus (NIDDM) subjects were measured and correlated with the stage of diabetic retinopathy. METHODS AND RESULTS:The apolipoprotein A-I (apo A-I) concentrations in the tears from NIDDM patients with retinopathy we...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/0004563021901748
更新日期:2002-01-01 00:00:00
abstract::We conducted an electrophoretic analysis of monoclonal gamma-globulin found in the serum of a patient with splenic marginal-zone lymphoma. This monoclonal protein showed electrophoretic mobility to the gamma region and reacted with anti-immunoglobulin (IgG) antiserum but not with anti-kappa or anti-lambda light chain ...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/000456306776021490
更新日期:2006-03-01 00:00:00
abstract:BACKGROUND:Serum ornithine carbamoyltransferase is a diagnostic marker of hepatic disorders due to its localization in periportal mitochondria. METHODS:We have developed a new method for the determination of serum ornithine carbamoyltransferase. It is based on the reverse reaction of ornithine carbamoyltransferase, us...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/000456303321610583
更新日期:2003-05-01 00:00:00
abstract::Direct assays have been described for the estimation of progesterone in serum and saliva. Both methods showed good inter-assay precision over a year, and the serum assay is now being used routinely in clinical laboratories. A highly significant correlation was obtained for progesterone concentrations in matched serum ...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328502200605
更新日期:1985-11-01 00:00:00
abstract::A rapid vacuum-driven procedure, using pre-treated Sep-Pak C18 cartridges, has been developed for the simultaneous extraction of arginine vasopressin (AVP) and atrial natriuretic peptide (ANP) from plasma. Non-specific interference was removed by fractional elution with an aqueous methanol/trifluoroacetic acid (TFA) m...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456329202900606
更新日期:1992-11-01 00:00:00
abstract::Ethylene glycol in plasma, urine or dialysis fluid is analysed as the phenylboronate derivative by mixing with acetonitrile/acidified 2,2-dimethoxypropane containing phenylboronic acid. After centrifugation, a portion of the supernatant is analysed directly by gas-liquid chromatography using a 3% OV-101 column at 150 ...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328702400113
更新日期:1987-01-01 00:00:00
abstract::Free and total reduced concentrations of D-penicillamine have been measured in the plasma of rheumatoid arthritis patients by HPLC and electro-chemical detection. A reverse-phase ion-pair separation in conjunction with a dual porous graphite electrode satisfied the requirements of robustness, sensitivity, selectivity ...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328802500210
更新日期:1988-03-01 00:00:00
abstract::Background We investigated the in vitro effects of various phospholipids as emulsifiers on the hydrolysing activities of lipoprotein lipase (LPL) Arg243His against triolein as substrate. LPL Arg243His, identified in a patient with hyperchylomicronaemia, displays severely diminished activity for triolein when emulsifie...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/0004563217693258
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND:The relationship between plasma angiopoietin-like protein 3 (ANGPTL3), and lipoprotein lipase (LPL) activity and hepatic triglyceride lipase (HTGL) activity has not been investigated in the metabolism of remnant lipoproteins (RLPs) and high-density lipoprotein (HDL) in human plasma. METHODS:ANGPTL3, LPL act...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/acb.2010.009307
更新日期:2010-09-01 00:00:00
abstract::The diagnostic performance of a new enzyme linked immunosorbent assay for the cardiac structural protein troponin T in the differential diagnosis of ischaemic cardiac damage was assessed. A well documented set of patients admitted to the coronary care unit of a district general hospital were studied. At a cutoff value...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456329303000102
更新日期:1993-01-01 00:00:00
abstract::Many techniques for the estimation of specific proteins measure light scattered by, or the turbidity of, suspensions of antigen:antibody aggregates formed in fluid-phase reactions. Although the shapes of reaction curves obtained are well documented, interpretation of the data in relation to the laws of light scatterin...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328302000407
更新日期:1983-07-01 00:00:00
abstract::Erythrocyte and fasting plasma magnesium were assayed by a dyebinding colorimetric method using the metallochromic dye, Calmagite, in 51 diabetic Nigerians and 25 controls. Erythrocyte magnesium concentrations were similar in the diabetics and the controls. Fasting plasma magnesium concentrations were significantly lo...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328902600111
更新日期:1989-01-01 00:00:00
abstract::We developed a binary gradient high-performance liquid chromatography (HPLC) method for measuring HbA2 in whole blood samples using a Pharmacia Mono Q column (1 mL) and measurement at 415 nm. The assay requires a simple lysis and centrifugation step before injection onto the column. We found good agreement of results ...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456329603300313
更新日期:1996-05-01 00:00:00
abstract:BACKGROUND:We evaluated the recently released chemiluminescence assay for 25-hydroxy vitamin D (25-OHD) on the Immunodiagnostic Systems iSYS (IDS-iSYS) automated analyser. METHODS:The IDS-iSYS comparison was performed using patient samples previously measured for 25-OHD by a validated liquid chromatography-tandem mass...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/acb.2011.011018
更新日期:2012-03-01 00:00:00
abstract::Background After adrenalectomy, urinary fractionated metanephrine concentrations are expected to be reduced. However, there are few studies suggesting cut-offs for adrenalectomy patients. Methods Urinary metanephrine and normetanephrine concentrations in adrenalectomy patients and two controls were compared and hormon...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/0004563215620822
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Analysis of copper and zinc in serum is commonly performed using atomic absorption spectrometry (AAS); however, these methods are often not readily available in smaller laboratories. Randox colorimetric assays for copper and zinc in serum were evaluated on the Thermo Electron Data Pro analyser against flame ...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/acb.2009.008253
更新日期:2009-07-01 00:00:00
abstract::There is an increasing need for sensitive and specific methods for toxicological screening. Development of a dual-column gas chromatography system for the screening of drugs and metabolites in the plasma of poisoned patients is described. The system has been evaluated using plasma from a well-documented series of pati...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328402100203
更新日期:1984-03-01 00:00:00
abstract:BACKGROUND:It is recommended that children receiving intravenous fluids should have frequent biochemical monitoring, in some situations 4-6 hourly. Small changes in sodium must be detected, requiring very high precision from sodium analyses. Some children are monitored using venous blood analysed by indirect ion-select...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/000456306778904560
更新日期:2006-11-01 00:00:00
abstract::The analysis of serum albumin by bromocresol purple (BCP), by bromocresol green (BCG), and by electroimmunoassay (EIA) has been compared in a mixed group of 100 hospital patients. Good agreement between the immunochemical and BCP methods, but a positive bias with the BCG method led to routine use of the BCP method. In...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328502200314
更新日期:1985-05-01 00:00:00
abstract::The deproteinised sample (150 microliters) is 'injected' into a continuously flowing stream of deionised water which is pumped, via a capillary tube, to the nebuliser of an atomic absorption spectrophotometer. Analytical readout is obtained, in the form of transient peaks, 6 s after sample injection. Before injection ...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456328302000202
更新日期:1983-03-01 00:00:00
abstract::We examined the reproducibility of oral glucose tolerance tests (OGTT) using the World Health Organization criterion in 212 Chinese subjects (male 149, female 63) who underwent two 75 g OGTTs within a 6-week period. The overall reproducibility was 65.6% (139/212) of which 74 subjects had normal glucose tolerance, 24 h...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456329803500107
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:Phlebotomy is a potential cause of preanalytical errors. We have observed phlebotomy in routine practice in a busy Emergency Department, to see how current practice compares with optimal blood sampling. METHODS:Phlebotomy episodes were audited and compared with standard procedures. A computer-based search o...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/acb.2011.011099
更新日期:2011-11-01 00:00:00
abstract::A rapid gas liquid chromatography method has been developed which is suitable for emergency estimations of paracetamol in overdose. The method is compared with a standard ultraviolet method. ...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1177/000456327501200102
更新日期:1975-01-01 00:00:00
abstract:BACKGROUND:Patients with Crigler-Najjar syndrome, type I (CNS-I) have an inherited absence of hepatocellular bilirubin uridine diphosphate-glucuronosyltransferase activity, which results in severe unconjugated hyperbilirubinaemia, often causing kernicterus and death in infancy or childhood. METHODS:Our patient is a 19...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章
doi:10.1258/000456303322326443
更新日期:2003-09-01 00:00:00
abstract::This paper critically examines the usefulness of serum albumin measurement in the light of current laboratory practice and knowledge of the pathophysiology of albumin metabolism. The main conclusions and recommendations are as follows: (i) Albumin measurement forms a limited, but useful part of the investigation of li...
journal_title:Annals of clinical biochemistry
pub_type: 杂志文章,评审
doi:10.1177/000456328702400604
更新日期:1987-11-01 00:00:00