After reviewing the 24-hour intake and output of a hospital client, the nurse suspects that the client may be experiencing flaccid bladder dysfunction
Which of the following diagnostic methods is most likely to confirm or rule out whether the client is retaining urine?
A) Blood test for creatinine, blood urea nitrogen, and glomerular filtration rate
B) Urine test for culture and sensitivity
C) Routine urinalysis
D) Measurement of postvoid residual (PVR) by ultrasound
Ans: D
Feedback:
Measurement of PVR can be achieved quickly, accurately, and painlessly by the use of ultrasonography. A PVR value of less than 50 mL is considered adequate bladder emptying, and more than 200 mL indicates inadequate bladder emptying. Urine tests and blood tests will not directly indicate whether a client is experiencing bladder fill with insufficiency in emptying.
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