Tags

Type your tag names separated by a space and hit enter

Blood glucose measurement in patients with suspected diabetic ketoacidosis: a comparison of Abbott MediSense PCx point-of-care meter values to reference laboratory values.
J Emerg Nurs 2009; 35(2):93-6JE

Abstract

INTRODUCTION

The purpose of this study is to compare blood glucose levels measured by a point of care (POC) device to laboratory measurement using the same sample venous blood from patients with suspected diabetic ketoacidosis (DKA).

METHODS

A descriptive correlational design was used for this IRB-approved quality assurance project. The study site was the 50-bed BMC emergency department (ED) which has an annual census of over 100,000 patient visits. The convenience sample consisted of 54 blood samples from suspected DKA patients with orders for hourly blood draws for glucose measurement. Spearman correlations of the glucose POC values, reference lab values, and differences between the two, were evaluated. A chi-square test was used to evaluate the association between the acidosis status and FDA acceptability of POC values.

RESULTS

Patient age range was 10-86 years; 63% were females; 46% had a final diagnosis of DKA. POC values underestimated glucose levels 93% of the time. There was a high correlation between the lab value and the magnitude of the difference, (lab minus POC value) indicating that the higher the true glucose value, the greater the difference between the lab and the POC value. A chi-square test showed no overall association between acidosis and FDA-acceptability.

DISCUSSION

The POC values underestimated lab reported glucose levels in 50 of 54 cases even with the use of same venous sample sent to the lab, which make it highly unreliable for use in monitoring suspected DKA patients.

Authors+Show Affiliations

Emergency Medicine, Baystate Medical Center, Springfield, and Emergency Medicine, Tufts University, School of Medicine, Boston, MA, USA. del.blank@bhs.orgNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

19285169

Citation

Blank, Fidela S J., et al. "Blood Glucose Measurement in Patients With Suspected Diabetic Ketoacidosis: a Comparison of Abbott MediSense PCx Point-of-care Meter Values to Reference Laboratory Values." Journal of Emergency Nursing: JEN : Official Publication of the Emergency Department Nurses Association, vol. 35, no. 2, 2009, pp. 93-6.
Blank FS, Miller M, Nichols J, et al. Blood glucose measurement in patients with suspected diabetic ketoacidosis: a comparison of Abbott MediSense PCx point-of-care meter values to reference laboratory values. J Emerg Nurs. 2009;35(2):93-6.
Blank, F. S., Miller, M., Nichols, J., Smithline, H., Crabb, G., & Pekow, P. (2009). Blood glucose measurement in patients with suspected diabetic ketoacidosis: a comparison of Abbott MediSense PCx point-of-care meter values to reference laboratory values. Journal of Emergency Nursing: JEN : Official Publication of the Emergency Department Nurses Association, 35(2), pp. 93-6. doi:10.1016/j.jen.2008.01.008.
Blank FS, et al. Blood Glucose Measurement in Patients With Suspected Diabetic Ketoacidosis: a Comparison of Abbott MediSense PCx Point-of-care Meter Values to Reference Laboratory Values. J Emerg Nurs. 2009;35(2):93-6. PubMed PMID: 19285169.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Blood glucose measurement in patients with suspected diabetic ketoacidosis: a comparison of Abbott MediSense PCx point-of-care meter values to reference laboratory values. AU - Blank,Fidela S J, AU - Miller,Moses, AU - Nichols,James, AU - Smithline,Howard, AU - Crabb,Gillian, AU - Pekow,Penelope, Y1 - 2008/06/30/ PY - 2007/09/12/received PY - 2007/10/24/revised PY - 2008/01/22/accepted PY - 2009/3/17/entrez PY - 2009/3/17/pubmed PY - 2009/7/16/medline SP - 93 EP - 6 JF - Journal of emergency nursing: JEN : official publication of the Emergency Department Nurses Association JO - J Emerg Nurs VL - 35 IS - 2 N2 - INTRODUCTION: The purpose of this study is to compare blood glucose levels measured by a point of care (POC) device to laboratory measurement using the same sample venous blood from patients with suspected diabetic ketoacidosis (DKA). METHODS: A descriptive correlational design was used for this IRB-approved quality assurance project. The study site was the 50-bed BMC emergency department (ED) which has an annual census of over 100,000 patient visits. The convenience sample consisted of 54 blood samples from suspected DKA patients with orders for hourly blood draws for glucose measurement. Spearman correlations of the glucose POC values, reference lab values, and differences between the two, were evaluated. A chi-square test was used to evaluate the association between the acidosis status and FDA acceptability of POC values. RESULTS: Patient age range was 10-86 years; 63% were females; 46% had a final diagnosis of DKA. POC values underestimated glucose levels 93% of the time. There was a high correlation between the lab value and the magnitude of the difference, (lab minus POC value) indicating that the higher the true glucose value, the greater the difference between the lab and the POC value. A chi-square test showed no overall association between acidosis and FDA-acceptability. DISCUSSION: The POC values underestimated lab reported glucose levels in 50 of 54 cases even with the use of same venous sample sent to the lab, which make it highly unreliable for use in monitoring suspected DKA patients. SN - 1527-2966 UR - https://www.unboundmedicine.com/medline/citation/19285169/Blood_glucose_measurement_in_patients_with_suspected_diabetic_ketoacidosis:_a_comparison_of_Abbott_MediSense_PCx_point_of_care_meter_values_to_reference_laboratory_values_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0099-1767(08)00037-8 DB - PRIME DP - Unbound Medicine ER -