Document Detail


Self-measurement of blood pressure: accuracy, patient preparation for readings, technique and equipment.
MedLine Citation:
PMID:  11518835     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Self-measurement of blood pressure is commonly performed by those persons with hypertension and is advocated in many national hypertension guidelines. We examined accuracy of readings, patient knowledge, and preparation for readings, technique and equipment. DESIGN: The study was a prospective observational design. Sixty-nine hypertensive patients were recruited from a tertiary referral center and by newspaper advertisement. All patients had previously self-measured their blood pressure. The patients initially measured their blood pressure under direct supervision in a clinic using their usual preparation, technique and their own equipment. Then after a five-min rest, blood pressures were measured twice both by research nurse and the patient in an alternating sequence. The nurse used a standardized blood pressure measurement technique. RESULTS: Inadequate patient knowledge and performance of measurement technique and inaccurate equipment was common. The average initial patient systolic reading prior to the five-minute rest was higher than that of the trained nurse (9.1 +/- 13 mmHg systolic, p < 0.001 and 1.5 +/- 8.0 mmHg diastolic, p = 0.12). Almost half (42%) of the initial patient blood pressure readings differed in classification of hypertension/normotension from the nurse. The difference between the patient and nurse readings after the five-min rest was 3.8 +/- 11.8 / 1.1 +/- 6.8 mmHg. CONCLUSIONS: Care must be taken in interpreting patient self-measured blood pressure unless there has been adequate training and assessment of patient and equipment accuracy. Studies of health care professionals reveal similar problems therefore widespread efforts to standardize blood pressure measurement are necessary.
Authors:
N R Campbell; L Milkovich; E Burgess; D W McKay
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article    
Journal Detail:
Title:  Blood pressure monitoring     Volume:  6     ISSN:  1359-5237     ISO Abbreviation:  Blood Press Monit     Publication Date:  2001 Jun 
Date Detail:
Created Date:  2001-08-23     Completed Date:  2001-12-07     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9606438     Medline TA:  Blood Press Monit     Country:  England    
Other Details:
Languages:  eng     Pagination:  133-8     Citation Subset:  IM    
Affiliation:
Division of General Internal Medicine, Department of Medicine, Cardiovascular Research Group, The University of Calgary, Calgary, Alberta, Canada. ncampbel@ucalgary.ca
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MeSH Terms
Descriptor/Qualifier:
Aged
Artifacts
Automation
Blood Pressure Determination / methods*,  nursing,  psychology,  standards
Blood Pressure Monitors / standards
Calibration
Equipment Design
Female
Health Knowledge, Attitudes, Practice
Humans
Hypertension / physiopathology*
Male
Middle Aged
Patient Education as Topic
Posture
Prospective Studies
Reproducibility of Results
Self Care*
Sensitivity and Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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