This video explains it https://www.youtube.com/watch?v=kvQ2IU3ILRo&list=PL3n8cHP87ijDnqI8_5WQlS4tN37D6P4dH&index=8&t=52s
I think by 'left sternal border' they're referring to the Erb's point - left 3rd ICS on sternal border.
Even I got it wrnong thinking tricuspid area is being described!
taeGr video on 1S nad ti's !ils!tp
The yaw I brmeemre ,ti 1:S Mairtl map;& irtscpiud cb lodbo oesg mfor rtiaa ot esrentivcl nhte from srceinevlt to oieusdt eht ehtar ;-g-&t 2S. Nwo, nhew uoy veah a tlSpi S1 het awy I itnhk utboa is ttha nweh ouy lihaen you have txare boodl coming oitn eth tirhg sdie of hte ahrte os teh cptuiisdr svealv secslo ltrae adn suesac a iptls 1S ponu rtiipoe.nrsa peHo atth ehp.ls
Q: ltipS 1S rdahe ervo Ltef salnret rerobd - ruictspid aera. tiFsr cpnnmtoeo of ?AS1: gnnhatiy CM( in BBRB) ttha ascesu ldeeday rclsoue fo ipitcrdsu vlvea cderoapm ot litmra velv-a iwll csaeu plsit S1 hwti daeeyld T1 nda ylera M1 arehd at rcduipsTi eraa.
Psalee rade the lats etnseenc fo the qosit.eun I hintk eht pltis ithmg be cebsuea of Rb.,b iths ecussa hte rltaim adn drpicsitu lveva to scloe at renifefdt ise.mt
-so iwhhc fo the olfwigonl sebt isnpeaxl the ftris nncmopeot fo the tehra ondus (istlp 1S.) ohudSl eb eht iarmlt avelv ursloce rbeeof hte cdsupriti laevv.
submitted by โlfsuarez(160)
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$279$49 65% OFFFstri areht dsuno )1S( si ageendrte yb wot ertah vla:ves eht litmar alvve dan ctupiisrd v.elav alNeyr stlamsieuonu iocnsgl of heets aevslv olmnylar rengaeets a giensl 1S u.sndo piStgilnt of the 1S sudon is edhar ehnw rtimal nad tuirpdsci aelvsv lseoc ta tsiglyhl fetnfdire meits, wiht yllasuu het matlir glisocn rbeoef tduirispc
$279$49 65% OFF