Acute Care Testing: Blood Gases and Electrolytes at the Point of Care

2001 ◽  
Vol 21 (2) ◽  
pp. 321-336 ◽  
Author(s):  
Catherine J. Cox
Keyword(s):  
CJEM ◽  
2016 ◽  
Vol 18 (S1) ◽  
pp. S106-S106
Author(s):  
J. Lindgren ◽  
S. Dowling

Introduction: In the Emergency Department (ED), increasing time pressures and acuity require physicians to have access to quick and reliable data to guide patient care decisions. Blood gases (BGs) allow quick access to key information, and are used frequently in the ED. Our objective was to review the literature on reliability and accuracy of electrolyte measurements obtained from BGs in high acuity settings. Methods: A comprehensive literature review was conducted in September of 2015. The search strategy, done in conjunction with a medical librarian, identified studies that assessed the accuracy of BGs when compared to traditional laboratory serum measurements. Prior to the review we determined sodium and potassium would be the area of focus. Eligibility parameters for the studies included samples from acute care areas - the ED and ICU - and a comparison of BG and serum values taken simultaneously from the patient. Results: Our review included 12 studies, 9 in adult and 3 in pediatrics. There were approximately 1,135 patients included, consisting of 851 adult and 284 pediatric cases. The results were mixed; 9 studies agreed that sodium and potassium readings from BGs were accurate enough to guide acute care decisions, 5 did not. Furthermore, important questions were raised regarding the varying accuracy of BGs depending on what physiological level the electrolytes were at during the time of collection, i.e. at critical vs non-critical levels. Conclusion: This is the first literature review to examine the existing evidence on the accuracy of BGs in acute care environments. Given the variability in the results, a larger study needs to be done to determine the validity and reliability of blood gases for electrolytes in acute care settings. Only by ensuring the accuracy of data collected via point-of-care BGs can the most informed decisions be made surrounding patient care in acute care settings.


1994 ◽  
Vol 40 (1) ◽  
pp. 124-129 ◽  
Author(s):  
R J Wong ◽  
J J Mahoney ◽  
J A Harvey ◽  
A L Van Kessel

Abstract We evaluated a new portable instrument, the PPG StatPal II pH and Blood Gas Analysis System, designed for "point-of-care" measurements of blood gases and pH. Inaccuracy (% of target value) and imprecision (CV%) were assessed by blood tonometry and comparison with a Corning 178. Within-day results for PCO2 inaccuracy and imprecision ranged from 98.2% to 102.9% and 3.3% to 3.9%, respectively; for PO2, these were 95.5% to 102.3% and 2.3% to 3.0%, respectively. Between-day results for PCO2 inaccuracy and imprecision ranged from 99.2% to 99.3% and from 2.9% to 3.2%, respectively; for PO2, the ranges were 96.2% to 98.2% and 2.6% to 3.0%, respectively. Two PCO2 outliers (in 645 samples = 0.3%) were observed. In general, tonometry recovery, measurement stability, and pH bias results for the StatPal II and Corning 178 were comparable. We conclude that the StatPal II performs within acceptable ranges of inaccuracy and imprecision.


Author(s):  
Lucius C. Imoh ◽  
Onyedika G. Okoye ◽  
Audu C. Abimiku ◽  
Alex O. Abu ◽  
Solomon A. Asorose ◽  
...  

Background: To determine the challenges in diagnostic support for adequate fluid and electrolyte (F/E) management in a poor-resource critical care setting.Methods: This cross-sectional survey was conducted between March and May 2017 in one hundred and four (104) doctors practicing in four tertiary hospitals in North-central Nigeria. These doctors were currently working in Accidents and Emergency Units (A/E), Intensive care Units (ICU) and Children Emergency Units and have worked for at least two months prior to the study. They were given a structured questionnaire to fill and return. The questionnaire among other things, addressed laboratory-related factors that affect management of F/E disturbances.Results: Unavailability of some laboratory tests, inaccuracy of laboratory results, incomplete test results and delay in obtaining results, hampered F/E management in critical care according to more than 75% of the surveyed doctors. About sixty percent of the doctors reported a turnaround time (TAT) of ≥3 hours for electrolytes and most emergency biochemical tests (except urine dipstick and Blood gases). Also ≤25% of doctors responded that electrolytes and most emergency biochemical tests (except urine dipstick and Blood gases) were offered in the ICU/Emergency unit laboratories. Ten percent or less of doctors reported that electrolytes and the emergency biochemical test were available by Point of care testing (POCT).Conclusions: There is an urgent need for the managers of healthcare in LMICs to establish functional laboratories in ICUs, explore the use of POCT and build capacity for diagnostic critical care.


2020 ◽  
Vol 19 (1) ◽  
pp. 57-57
Author(s):  
Ben Chadwick ◽  
◽  
Nick Murch ◽  
Anika Wijewardane ◽  
◽  
...  

Editor- Thank you for giving us the opportunity to respond to the letter received regarding the Joint Royal College of Physicians Training Board (JRCPTB) curriculum for Acute Internal Medicine (AIM) that has previously been circulated for comment and consideration of implementation in August 2022. Dr Williamson is correct in asserting that the proposed curriculum hopes to produce doctors with generic professional and specialty specific capabilities needed to manage patients presenting with a wide range of medical symptoms and conditions. It does aim to produce a workforce that reflects the current trends of increasing patient attendances to both primary care and emergency departments- one that has a high level of diagnostic reasoning, the ability to manage uncertainty, deal with co-morbidities and recognise when specialty input is required in a variety of settings, including ambulatory and critical care. Contrary to the situation described in the correspondence, the new curriculum does not move away from each trainee being required to develop a specialist skill, such as medical education, management, stroke medicine or focused echocardiography. Trainees will still need to acquire competency in a specialist skill for their final 36 months of their training programme, usually after they have completed their Point of Care Ultrasound (POCUS) certification. The thinking behind introducing mandatory POCUS in the curriculum is that: POCUS is in the proposed curricula for intensive care medicine, respiratory medicine and emergency medicine, therefore we feel that in order to recruit the best trainees it is imperative POCUS training is offered as standard As evidenced by the trainee surveys, they often do not get allocated time to develop their specialist skill, especially in the early years of Higher Specialty Training before they often have decided on a particular skill. The introduction of mandatory POCUS training should legtimise time off the ward to obtain this skill early in training. POCUS is becoming more and more standardised in 21st Century acute care alongside the reducing costs of Ultrasound probe e.g. Philips Lumify and Butterfly iQ which are compatible with smart phones POCUS has been heralded as the fifth pillar of examination (observation, palpation, percussion, auscultation, insonation)1 The proposed curriculum therefore facilitates trainees to have regular dedicated time to develop interests inside or outside acute medicine to supplement their professional experience and training. This will also enable trainees to have time away from the ‘front door’ high intensity acute care. Mandatory POCUS will continue to set AIM training apart from other physician training programmes and continue to attract high quality trainees to apply to the specialty. Formal feedback seen at the SAC meeting in October 2019 to the draft curriculum (personal correspondence from JRCPTB) showed a positive response from nine individuals, an ambivalent one from two people, and only two against the introduction of formal POCUS training in the curriculum. Point of Care Ultrasound will likely be a welcome addition to the curriculum and will benefit patients, trainees and front door services up and down the country. Concerns regarding supervision are being addressed by the POCUS working group, in anticipation of the lead in period of well over two years. It is anticipated that most trainees can achieve POCUS sign off (e.g. Focused Acute Medical Ultrasound) in 6 to 12 months (personal correspondence Nick Smallwood from POCUS working group). With ongoing concerns regarding recruitment and retention in Acute Internal Medicine we agree strongly that with POCUS inclusion, we have a further selling point for AIM training.


Author(s):  
Anna M Musolino ◽  
Danilo Buonsenso ◽  
Anna C Massolo ◽  
Mariasara Gallo ◽  
Maria C Supino ◽  
...  

2004 ◽  
Vol 37 (9) ◽  
pp. 811-817 ◽  
Author(s):  
Peter A. Kavsak ◽  
Nuala Zielinski ◽  
Dailin Li ◽  
Patrick J. McNamara ◽  
Khosrow Adeli

BMJ ◽  
2004 ◽  
Vol 328 (Suppl S3) ◽  
pp. 0403105
Author(s):  
Nicola Cooper

CHEST Journal ◽  
2005 ◽  
Vol 128 (4) ◽  
pp. 2183-2189 ◽  
Author(s):  
Michael Hlavac ◽  
Julie Cook ◽  
Rob Ojala ◽  
Ian Town ◽  
Lutz Beckert

2000 ◽  
Vol 114 (1) ◽  
pp. 128-138 ◽  
Author(s):  
Valerie L Ng ◽  
Roger Kraemer ◽  
Carol Hogan ◽  
Doug Eckman ◽  
Mark Siobal

Sign in / Sign up

Export Citation Format

Share Document