Final answer:
A suprapubic tap is a procedure used to obtain a sterile urine sample by inserting a needle into the bladder through the abdomen or to relieve urinary retention. It's commonly used when conventional methods to collect urine are not possible and is typically performed under ultrasound guidance.
Step-by-step explanation:
What is a Suprapubic Tap?
A suprapubic tap is a medical procedure where a small needle is inserted through the lower abdomen directly into the bladder to remove urine. This technique is typically performed under ultrasound guidance to ensure accuracy and minimize the risk of injury to the bladder or surrounding structures.
Why is it done?
It is done primarily to obtain a sterile urine sample for diagnostic purposes, especially when a clean-catch midstream urine sample cannot be easily obtained, as in cases with individuals who are very young, critically ill, or have difficulty with voluntary urination. Additionally, it may be done to relieve urinary retention if a person cannot urinate naturally.
In terms of a 150 word explanation, the suprapubic tap is an essential diagnostic and therapeutic tool in medical settings, providing a means to collect urine for testing or to alleviate discomfort from a distended bladder.