Jump to content

Archive:Blood pressure: Difference between revisions

From IdeaWazaWiki
wikademia>Koppertone
New page: '''Taking a Blood Pressure''' ==General== *NO: **smoking or caffeine x 30 mins **constrictive clothing *YES **rest for ≥ 5 minutes **breathing normal and relaxed *DURING RECORDING: no...
 
wikademia>Koppertone
Line 1: Line 1:
'''Taking a Blood Pressure'''
'''Taking a Blood Pressure'''
==General==
==General==
*NO:  
*No:  
**smoking or caffeine x 30 mins
**smoking or caffeine x 30 mins
**constrictive clothing
**constrictive clothing


*YES
*Yes:
**rest for ≥ 5 minutes
**rest for ≥ 5 minutes
**breathing normal and relaxed
**breathing normal and relaxed


*DURING RECORDING: no talking and patient’s legs uncrossed
*During recording: no talking and patient’s legs uncrossed


==Equipment==
==Equipment==

Revision as of 02:15, 22 May 2007

Taking a Blood Pressure

General

  • No:
    • smoking or caffeine x 30 mins
    • constrictive clothing
  • Yes:
    • rest for ≥ 5 minutes
    • breathing normal and relaxed
  • During recording: no talking and patient’s legs uncrossed

Equipment

  • cuff size
    • bladder width > 40 % of arm circumference
    • length > 80% of arm circumference

Positioning

  • Level: devices and columns at eye level, patient’s arm held at heart level

Placement

  • lower edge of cuff ~ 3 cm above elbow crease
  • bladder centered over brachial artery (PALPATE medial to biceps tendon)

Performance

  • palpate radial pulse (note ARRYTHMIAS)
  • inflate cuff to ~ 30 mm Hg above palpable pulse
  • drop the pressure by 2 mm Hg / second (prolonged filling will lead to venous congestion, making the sounds harder to hear)
  • repeat after ≥ 2 minutes of standing to assess for orthostatic hypotension (drop in 20/10)
  • for all patients on the FIRST VISIT, take at least 2 readings separated by 2 minutes
    • if first 2 readings differ by > 5 mm Hg, another reading is indicated
    • Elevated readings should be confirmed on 3 readings

Pitfalls

  • anxiety, pain
  • arrhythmias
  • wrong cuff size (too small overestimates, too large underestimates)
  • white coat hypertension (up to 25%)

Classification

(criteria for adults > 17 and not taking antihypertensives)

  • OPTIMAL < 120/80
  • NORMAL < 130/85
  • HIGH NORMAL < 140/90
  • HTN STAGE 1 < 160/100
  • HTN STAGE 2 < 180/110
  • HTN STAGE 3 < 210/120
  • HTN STAGE 4 > 210/120

Other OSCE modules