Is There A Difference Between Calf and Brachial Blood Pressures?

2.50
Hdl Handle:
http://hdl.handle.net/10755/308648
Category:
Abstract
Type:
Presentation
Title:
Is There A Difference Between Calf and Brachial Blood Pressures?
Author(s):
Tran, Nhu Nguyen Thuy
Lead Author STTI Affiliation:
Gamma Tau-at-Large
Author Details:
Nhu Nguyen Thuy Tran, RN, BSN, MSN, CCRN, ntran@chla.usc.edu
Abstract:

Session presented on: Monday, November 18, 2013

The standard of care for noninvasive blood pressure (NIBP) measurements are from the upper arm.  However, in the neonatal intensive care units (NICU), it is common practice to take measurements from the calf.  Nurses commonly take calf NIBPs because other extremities are not available, but there is little evidence to support calf blood pressures as a reliable site for BP measurement and the evidence is conflicting.  The purpose of this study was to show no statistical difference between the calf and brachial blood pressure measurements.

This was a prospective quasi-experimental study design with IRB approval.  The subjects were a convenience sample of 52 NICU patients, ranging from 3 days to 207 days old, born at 24-40 weeks gestation.  The inclusion criteria were any neonate (preterm or term) or infant admitted to the NICU and parental consent.  Blood pressure measurements were taken according to the AHA guidelines on the upper arm and the calf.  The instrument to measure the blood pressures was the Philips oscillometer device.  The same size cuff was used for the brachial and the calf blood pressures.  Three blood pressures were taken from an upper and lower extremity, with 2 minute intervals in between each measurement.

The second and third blood pressures were used for data analysis.  The data was analyzed using a mixed ANOVA.  The p-values lower and upper limits have a 95% confidence interval for the difference.  The difference was not significant for systolic (p=0.6159) or mean BP (p=0.1298), but was significant for diastolic (p=0.0263).

The data showed no statistical difference between the systolic and mean blood pressures, but did show a difference in the diastolic blood pressures.  This study has great significance because most NICUs use the mean BP or the systolic BP for clinical decisions.  The study supports the current practice of bedside nurses.

Keywords:
blood pressure; calf; neonate
Repository Posting Date:
19-Dec-2013
Date of Publication:
19-Dec-2013
Conference Date:
2013
Conference Name:
42nd Biennial Convention
Conference Host:
Sigma Theta Tau International, the Honor Society of Nursing
Conference Location:
Indianapolis, Indiana, USA
Description:
42nd Biennial Convention 2013 Theme: Give Back to Move Forward. Held at the JW Marriott

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_GB
dc.type.categoryAbstracten_GB
dc.typePresentationen_GB
dc.titleIs There A Difference Between Calf and Brachial Blood Pressures?en_GB
dc.contributor.authorTran, Nhu Nguyen Thuyen_GB
dc.contributor.departmentGamma Tau-at-Largeen_GB
dc.author.detailsNhu Nguyen Thuy Tran, RN, BSN, MSN, CCRN, ntran@chla.usc.eduen_GB
dc.identifier.urihttp://hdl.handle.net/10755/308648-
dc.description.abstract<p>Session presented on: Monday, November 18, 2013</p>The standard of care for noninvasive blood pressure (NIBP) measurements are from the upper arm.  However, in the neonatal intensive care units (NICU), it is common practice to take measurements from the calf.  Nurses commonly take calf NIBPs because other extremities are not available, but there is little evidence to support calf blood pressures as a reliable site for BP measurement and the evidence is conflicting.  The purpose of this study was to show no statistical difference between the calf and brachial blood pressure measurements. <p>This was a prospective quasi-experimental study design with IRB approval.  The subjects were a convenience sample of 52 NICU patients, ranging from 3 days to 207 days old, born at 24-40 weeks gestation.  The inclusion criteria were any neonate (preterm or term) or infant admitted to the NICU and parental consent.  Blood pressure measurements were taken according to the AHA guidelines on the upper arm and the calf.  The instrument to measure the blood pressures was the Philips oscillometer device.  The same size cuff was used for the brachial and the calf blood pressures.  Three blood pressures were taken from an upper and lower extremity, with 2 minute intervals in between each measurement. <p>The second and third blood pressures were used for data analysis.  The data was analyzed using a mixed ANOVA.  The p-values lower and upper limits have a 95% confidence interval for the difference.  The difference was not significant for systolic (p=0.6159) or mean BP (p=0.1298), but was significant for diastolic (p=0.0263). <p>The data showed no statistical difference between the systolic and mean blood pressures, but did show a difference in the diastolic blood pressures.  This study has great significance because most NICUs use the mean BP or the systolic BP for clinical decisions.  The study supports the current practice of bedside nurses.en_GB
dc.subjectblood pressureen_GB
dc.subjectcalfen_GB
dc.subjectneonateen_GB
dc.date.available2013-12-19T17:34:04Z-
dc.date.issued2013-12-19-
dc.date.accessioned2013-12-19T17:34:04Z-
dc.conference.date2013en_GB
dc.conference.name42nd Biennial Conventionen_GB
dc.conference.hostSigma Theta Tau International, the Honor Society of Nursingen_GB
dc.conference.locationIndianapolis, Indiana, USAen_GB
dc.description42nd Biennial Convention 2013 Theme: Give Back to Move Forward. Held at the JW Marriotten_GB
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