Pediatric emergency medicine trisk 4518 4518
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FIGURE 131.24 Pleural effusion identification using phased array probe.
Bladder Catheterization
Bladder catheterization is commonly performed in the pediatric ED, especially in
infants. While the catheterization is not technically challenging, it may be
uncomfortable for the patient; hence, the importance of avoiding multiple
attempts. Using ultrasound to identify urine in the bladder may be helpful,
especially if the child has recently voided or had a dry bladder on prior
catheterization. For children who require suprapubic aspiration, it is important to
use ultrasound to not only identify that there is urine in the bladder, but also to
identify the epigastric vessels prior to the procedure.
Technique
A phased array or curvilinear probe is an appropriate transducer for identifying
urine in the bladder prior to urethral catheterizations (Fig. 131.25 ). For neonates
and smaller infants, a linear probe is also acceptable. For suprapubic aspiration,
the linear probe is also recommended as it is easier to visualize the needle
entering the bladder.
