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1、TheMeasurmentofBloodPressureandHeartSoundWhatisbloodpressureBloodiscarriedfromthehearttoallpartsofyourbodyinvesselscalledarteries.Bloodpressureistheforceofthebloodpushingagainstthewallsofthearteries.Eachtimetheheartbeats(about60-70timesaminuteatrest),itpumpsoutbloodintothearte
2、ries.Yourbloodpressureisatitshighestwhentheheartbeats,pumpingtheblood.Thisiscalledsystolicpressure.Whentheheartisatrest,betweenbeats,yourbloodpressurefalls.Thisisthediastolicpressure.BLOODPRESSUREBloodpressureisalwaysgivenasthesetwonumbers,thesystolicanddiastolicpressures.Both
3、areimportant.Usuallytheyarewrittenoneaboveorbeforetheother,suchas120/80mmHg.Thetopnumberisthesystolicandthebottomthediastolic.Bloodpressurecanvarybasedonmanyfactors,includingage,gender,weightandphysicalcondition.Ingeneral,aperson'sbloodpressureislowerduringsleepandhigherwhenhe
4、orsheisactive.Bloodpressurecanchangeeasilyinresponsetophysiologicalchanges.Thesettinginwhichaperson'sbloodpressureismeasuredmayalsoaffecttheresults.BLOODPRESSUReBloodpressurechangesduringtheday.Itislowestasyousleepandriseswhenyougetup.Italsocanrisewhenyouareexcited,nervous,ora
5、ctive. Still,formostofyourwakinghours,yourbloodpressurestaysprettymuchthesamewhenyouaresittingorstandingstill.Thatlevelshouldbelowerthan120/80.Whenthelevelstayshigh,140/90orhigher,youhavehighbloodpressure.Withhighbloodpressure,theheartworksharder,yourarteriestakeabeating,andy
6、ourchancesofastroke,heartattack,andkidneyproblemsaregreater.BLOODPRESSURECategoriesforBloodPressureLevelsinAdults(InmmHg,millimetersofmercury)BLOODPRESSURECategorySystolic (Topnumber)Diastolic (Bottomnumber)NormalLessthan120Lessthan80Prehypertension120-13980-89HighBloodPressur
7、eSystolicDiastolicStage1140-15990-99Stage2160orhigher100orhigherBloodPressureasaToolBloodpressureisanimportantdiagnosticindex,especiallyofcirculatoryfunction.Itisanimportantdiagnosticindexformanyreasons. Firstly,anyconditionthatdilatesorcontractsthebloodvesselsoraffectstheirel
8、asticity,affectsthebloodpressure.Secondly,anydiseaseofthehear
