Differences in Glucose Values Obtained From Point-of-Care Glucose Meters and Laboratory Analysis in Critically Ill Patients

2009 ◽  
Vol 18 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Anjannette Cook ◽  
Delyla Laughlin ◽  
Margery Moore ◽  
Doreen North ◽  
Kathleen Wilkins ◽  
...  
Keyword(s):  
Critically Ill ◽  
Critically Ill Patients ◽  
Point Of Care ◽  
Method Comparison ◽  
Venous Catheter ◽  
Laboratory Analysis ◽  
Hematocrit Level ◽  
Convenience Sample ◽  
Indwelling Catheters ◽  
The Difference

Background Blood for glucose analysis is often obtained interchangeably from indwelling catheters and fingersticks. Objectives To determine the level of agreement between glucose values obtained by laboratory analysis and with a point-of-care device for blood from 2 different sources: fingerstick and a central venous catheter. Methods A method-comparison design was used. Point-of-care values for blood from fingersticks and catheters were compared with laboratory values for blood from catheters in a convenience sample of 67 critically ill patients. The effects of hematocrit level and finger edema on differences in glucose values between the 2 methods were also evaluated. A t test was used to determine differences in glucose values obtained via the 2 methods. Differences and limits of agreement were also calculated. Results Laboratory glucose values for blood from a catheter differed significantly from point-of-care values for blood from the catheter (t1,66 = −9.18; P < .001) and from a fingerstick (t1,66 = 6.53; P < .001). Glucose values for the 2 methods differed by 20 mg/dL or more for 1 of 6 patients (15%) for catheter samples and for 1 of 5 (21%) for fingerstick samples. Point-of-care glucose values for fingerstick and catheter samples did not differ (P = .98). Hematocrit level significantly explained the difference in glucose values between the 2 methods for both catheter (R2 = 0.288; P < .001) and fingerstick (R2 = 0.280; P = .02) samples. Conclusions Use of a commonly used point-of-care device when precise glucose values are needed may lead to faulty treatment decisions.

Comparison of Glucose Point-of-Care Values With Laboratory Values in Critically Ill Patients

2009 ◽  
Vol 18 (3) ◽  
pp. 224-230 ◽  
Author(s):  
Anna Shearer ◽  
Marilyn Boehmer ◽  
Melanie Closs ◽  
Rosalina Dela Rosa ◽  
Jean Hamilton ◽  
...  
Keyword(s):  
Critically Ill ◽  
Critically Ill Patients ◽  
Clinical Laboratory ◽  
Point Of Care ◽  
Method Comparison ◽  
Laboratory Analysis ◽  
Convenience Sample ◽  
Blood Samples ◽  
Glucose Testing ◽  
Laboratory Values

Background Blood from central venous or arterial catheters as well as from fingersticks is often used for point-of-care glucose testing.Objectives To compare glucose values obtained with a point-of-care device for catheter and fingerstick blood samples with values obtained by clinical laboratory analysis of a catheter blood sample.Methods A method-comparison design was used. Point-of-care values for fingerstick and catheter blood samples were compared with laboratory values for blood from catheters in a convenience sample of 63 critically ill patients. Device bias and precision were calculated and graphed according to the Bland-Altman method, and a t test was used to determine differences in glucose values for the 2 methods.Results Laboratory glucose values for blood from a catheter sample differed significantly from point-of-care values for blood from a fingerstick (t1,61 = 5.01; P < .001) and from a catheter (t1,61 = 3.91; P < .001). Bias and precision for the point-of-care device was large (fingerstick, 8.7 and 13.7; catheter, 7.0 and 14.0); 20% of the values differed from the laboratory glucose values by more than 20 mg/dL. Point-of-care glucose values for fingerstick and catheter samples did not differ (P = .41).Conclusions Glucose values obtained with a point-of-care device differ significantly from those obtained by laboratory analysis. The magnitude of these differences calls into question the widespread practice of using point-of-care glucose testing to guide insulin titration for tight glucose control. Errors in dosing could easily be made because of the large bias and precision associated with a point-of-care device.

Point-of-Care Echocardiography and Hemodynamic Monitoring in Cirrhosis and Acute-on-Chronic Liver Failure in the COVID-19 Era

2021 ◽  
pp. 088506662098828
Author(s):  
Madhumita Premkumar ◽  
Kamal Kajal ◽  
Anand V. Kulkarni ◽  
Ankur Gupta ◽  
Smita Divyaveer
Keyword(s):  
Intensive Care ◽  
Liver Failure ◽  
Critically Ill ◽  
Critically Ill Patients ◽  
Point Of Care ◽  
Kidney Injury ◽  
Regional Wall Motion ◽  
Chronic Liver ◽  
Chronic Liver Failure ◽  
Evidenced Based

Point-of-Care (POC) transthoracic echocardiography (TTE) is transforming the management of patients with cirrhosis presenting with septic shock, acute kidney injury, hepatorenal syndrome and acute-on-chronic liver failure (ACLF) by correctly assessing the hemodynamic and volume status at the bedside using combined echocardiography and POC ultrasound (POCUS). When POC TTE is performed by the hepatologist or intensivist in the intensive care unit (ICU), and interpreted remotely by a cardiologist, it can rule out cardiovascular conditions that may be contributing to undifferentiated shock, such as diastolic dysfunction, myocardial infarction, myocarditis, regional wall motion abnormalities and pulmonary embolism. The COVID-19 pandemic has led to a delay in seeking medical treatment, reduced invasive interventions and deferment in referrals leading to “collateral damage” in critically ill patients with liver disease. Thus, the use of telemedicine in the ICU (Tele-ICU) has integrated cardiology, intensive care, and hepatology practices across the spectrum of ICU, operating room, and transplant healthcare. Telecardiology tools have improved bedside diagnosis when introduced as part of COVID-19 care by remote supervision and interpretation of POCUS and echocardiographic data. In this review, we present the contemporary approach of using POC echocardiography and offer a practical guide for primary care hepatologists and gastroenterologists for cardiac assessment in critically ill patients with cirrhosis and ACLF. Evidenced based use of Tele-ICU can prevent delay in cardiac diagnosis, optimize safe use of expert resources and ensure timely care in the setting of critically ill cirrhosis, ACLF and liver transplantation in the COVID-19 era.

scholarly journals Intensive care unit physician-delivered point of care renal tract ultrasound in acute kidney injury is feasible

2018 ◽  
Vol 19 (4) ◽  
pp. 313-318 ◽  
Author(s):  
Prashant Parulekar ◽  
Ed Neil-Gallacher ◽  
Alex Harrison
Keyword(s):  
Intensive Care Unit ◽  
Acute Kidney Injury ◽  
Intensive Care ◽  
Critically Ill ◽  
Critically Ill Patients ◽  
Point Of Care ◽  
Kidney Injury ◽  
Diagnostic Quality ◽  
The Core ◽  
Low Incidence

Acute kidney injury is common in critically ill patients, with ultrasound recommended to exclude renal tract obstruction. Intensive care unit clinicians are skilled in acquiring and interpreting ultrasound examinations. Intensive Care Medicine Trainees wish to learn renal tract ultrasound. We sought to demonstrate that intensive care unit clinicians can competently perform renal tract ultrasound on critically ill patients. Thirty patients with acute kidney injury were scanned by two intensive care unit physicians using a standard intensive care unit ultrasound machine. The archived images were reviewed by a Radiologist for adequacy and diagnostic quality. In 28 of 30 patients both kidneys were identified. Adequate archived images of both kidneys each in two planes were possible in 23 of 30 patients. The commonest reason for failure was dressings and drains from abdominal surgery. Only one patient had hydronephrosis. Our results suggest that intensive care unit clinicians can provide focussed renal tract ultrasound. The low incidence of hydronephrosis has implications for delivering the Core Ultrasound in Intensive Care competencies.

scholarly journals Evaluation of bedbath in critically ill patients: impact of water temperature on the pulse oximetry variation

2010 ◽  
Vol 44 (4) ◽  
pp. 1039-1045 ◽  
Author(s):  
Aretha Pereira de Oliveira ◽  
Dalmo Valério Machado de Lima
Keyword(s):  
Water Temperature ◽  
Critically Ill ◽  
Critically Ill Patients ◽  
Age Groups ◽  
University Hospital ◽  
Convenience Sample ◽  
Level Ii ◽  
Before And After ◽  
Quasi Experimental ◽  
Water Temperature Data

This is a participant study, quasi-experimental, of a before and after type. A quantitative approach of biophysiological measures was used, represented by the saturation of oxygen measured by pulse oximeter (SpO2), and recorded on three occasions: before, during and after the bedbath in critically ill patients hospitalized at the ICU of a University Hospital in Brazil. Objective: to compare the SpO2 in various stages of the bath, with and without control of water temperature. Data collection was performed between December 2007 and April 2008 on a convenience sample consisting of 30 patients aged over 18 who had classification in TISS-28 from level II. Results show that water temperature control means a lower variation of SpO2 (p<0.05). No marked differences in variation of saturation between men and women or between age groups were established. In conclusion, heated and constant water temperature during the bedbath is able to minimize the fall of SpO2 that occurs while handling patients during procedures.

scholarly journals Effect of Central Venous Catheter Care Bundle Implementation on Outcomes of Critically Ill Patients

2020 ◽  
Vol 2 (1) ◽  
pp. 12
Author(s):  
Gehan A. F. Atia
Keyword(s):  
Central Venous Catheter ◽  
Bloodstream Infection ◽  
Critically Ill ◽  
Critically Ill Patients ◽  
Venous Catheter ◽  
Care Bundle ◽  
Central Venous ◽  
Significant Difference ◽  
Post Test ◽  
Catheter Care

Context: Central venous access device (CVAD) bundles for insertion and maintenance demonstrate a reduction in the frequency of complications and bloodstream infection when implemented with compliance monitoring, with the reported success of CVAD bundles. Aim: This study aimed to examine the effect of central venous catheter care bundle implementation on outcomes of critically ill patients. Methods: Quasi-experimental research (pre/post-test design) used to achieve the aim of this study. The study conducted at general and surgical intensive care units affiliated to Menoufia University and teaching hospital. Two study samples recruited in this study. All nurses working at the ICUs, as mentioned above, were recruited in this study. They were 6o critical care nurses. A convenient sample of all available critically ill patients at the time of the study was subjected to treatment via a central venous catheter. Four study tools used to collect the data of this study. These are a structured interview questionnaire, CVC nurses’ knowledge assessment questionnaire, nurses’ compliance assessment checklists, and patient complications assessment records. Results: The study result showed a highly statistically significant difference between pre and post-test knowledge scores of studied nurses regarding assisting line insertion, removal, maintenance, care, and infection control practices. Besides, a highly statistically significant difference between pre and post-test scores of nurses’ compliance to central venous catheter care practices of assisting in CVC insertion, blood sample withdrawal, medication and fluid administration, CVP measurements, CVC removal, and the management of central venous line complications. The study also revealed a highly statistically significant difference between the study and control group patients regarding the central venous catheter complications. However, signs of infection were the most frequent complications in both groups. Conclusion. The study concluded that a statistically significant difference between pre and post nurses’ knowledge and compliance with the CVC care bundle. The patients’ outcomes were also improved significantly after the implementation of the CVC care bundle compared to the controls. The study recommended the adoption of the current care bundle that should be disseminated and updated following the international organizations’ recommendation for implementing evidence-based practices for successful central line-associated bloodstream infection (CLABSI) prevention.

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