A client with several calculi in the ureter is scheduled for extracorporeal shock wave lithotripsy (ESWL). Which teaching statement by the nurse best describes the procedure?
A) A scope is passed through the urethra to visualize and destroy the stones with a laser.
B) After locating the calculi, a small incision is made to remove the stones.
C) The stone is identified via fluoroscopy and then shock waves are used to shatter the stones.
D) Once the calculi are located, a fine wire delivers shock waves to pulverize the stones.
C
Feedback:
ESWL is a procedure that uses 800 to 2400 shock waves aimed from outside the body toward soft tissues to dense stones. The repetition of the shock waves helps to shatter the stones into smaller particles that can be passed from the urinary tract. No incision is needed for ESWL therapy. Laser lithotripsy uses a fine wire placement to allow the laser beam to pulverize the stones.
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