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Variability in Blood Pressure Recordings in an Outpatient Set-up

Vidyasagar, Sudha and Bairy, KL and Rao, Y and Pankaj, * and Varma, Muralidhar and Prashanth, * (2008) Variability in Blood Pressure Recordings in an Outpatient Set-up. Indian Journal for the Practicing Doctor, 5 (2). pp. 1-4. ISSN 0973-516X

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Abstract

Objective: To quantify the differences in the systolic and diastolic BP when three readings were taken (in sitting posture) at an interval of 5-10 minutes in hypertensive patients. Methodology: Twenty eight patients on anti-hypertensive therapy visiting the OPD were included in the study. Each person was seated in a quiet room for 5 minutes, followed by the recording of the blood pressure. The blood pressure was recorded two more times at an interval of 5 minutes between each recording. After 3 sitting recordings, a 4th reading was obtained in standing posture. Results: Results were analysed based on the JNC VII guidelines according to which a difference of more than 10 mm of Hg of systolic blood pressure and more than 5 mm of Hg differentiates various grades of hypertension. First reading was compared with the second and the third reading successively and analysed. 32.14% of the patients showed aberrant readings. 14% of the subjects, each, showed a significant difference between the first and the second reading and the first and the third systolic readings. Around 46% and 75% of the patients showed a significant difference in SBP and DBP respectively when compared between sitting and standing postures. Conclusion: It would be ideal to record blood pressure at least twice before labeling a patient as hypertensive, and also before adjusting the dose of the drugs in a hypertensive.

Item Type: Article
Uncontrolled Keywords: Blood pressure Hypertension JNC VII
Subjects: Medicine > MMMC Manipal > Pharmacology
Medicine > KMC Manipal > Medicine
Medicine > KMC Manipal > Pharmacology
Depositing User: KMC Manipal
Date Deposited: 01 Mar 2012 05:01
Last Modified: 23 Oct 2013 04:05
URI: http://eprints.manipal.edu/id/eprint/3258

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