Always first Identify the bladder by aiming into pelvis from just above pubic symphysis. Then identify the uterus directly adjacent to bladder. An intrauterine fetal pole can be reliably identified if heart movements are identified or a definitive yolk sac is seen within the uterus.
in a patient with a first trimester pregnancy with cramping or bleeding an intrauterine pregnancy can be quickly identified at the bedside to perform this scan i'll use the curvilinear scanner on an ob gyn preset with the indicator to the patient's right we'll start the scan by going in the transverse orientation and really aiming that transducer just above the suprapubic area into the pelvis to identify the bladder it's very important to first identify the bladder to get your bearings and from here we're going to scan from the bladder and then identify the uterus hopefully just adjacent to the bladder once i've identified the uterus i'll continue sweeping through until ideally an intrauterine pregnancy is identified early signs could be a yolk sac but in this one i can even see fetal heart tones present once i've scanned all the way through the uterus it's always a good idea to do a second axis to go lateral this time with the indicator to the patient's head and do another sweep just to make sure there's even no second gestational sac hanging around with twin b and once i've swept through i can feel confident that i've identified a positive intrauterine pregnancy in this patient you
