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Z ur I' riifun g dc r /crc brulc n A uio rcgulal rcscrip rio n i l l' a "("(' I) tes t desig ned ril l" t he cl i 11 icnl i I1\' L',,1i g ;1(io n or ccrc hral .uu orcgul.u ion . Th e I )Il p p lcr xhilt freque ncy or the m iddle cere bral art e ry is rcco rded ll '\in g li ra tran sd uc er fixed 10 till' p.ui cn ts head hy a ll d; l'"tiL' ribbon and it h;1I 1joi n t typ e prob e-ho lder. an d on -line d ig ita lly a na lysed to calcnl.uc the T el) ni)\\" inde x (sig na l powe r tun es n :lo L' ily) . Blo od pressure is ruc.rvurc d

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en..'ry ,\ 0 "L'co ntl,,; l1 the right index hold a l the leve l the hc.u'L u-,illg; 1spcciu l ~ p h yg Il IO ll l;\ Il{) llle te r . Th e p. uicnt sit-, (Ill tl rtl {l t ~ . . tool . A n cr 1_:' min ute", 01" mcsurc mcn t he ri.. . cs 1(1 re main ill upr ighl poviriou for an o the r 2 1ll1 1l 1l tL'S. T hL' 11 11\\ ' ; IldL'\ III u-m aliced In its a \'L'I"agL' \1\'L' r the silting pL'ri t xl qu.nuit.ni vcly indica tes IhL' e vol ution 01" \'Ol11 111l' Il (l \\ hwu ght abou t hy the L-1Jilllgl' o r th e h\)dy po .s itipn . T he d lall gL' in .ntc riul blood pre.. . sure i... orr-line calc ula ted from ih pl.-' r;od il· 1I1 L'