Prostate biopsy pre test.
going to have a prostate biopsy in 2 weeks.
week my doc wants me to come in for a swab.
that this involves antibiotic issues.
is the pre-biopsy swab the standard of care, or just a study?
usually performed a transrectal prostate biopsy directed by ultrasound
when there is a suspicion that there may be a prostate cancer, either
because the exploration of the prostate by digital rectal examination
reveals the presence of a nodule or because the antigen determination
in blood prostate specific (PSA) is abnormal.
is usually performed with the patient lying on one side, with knees
drawn up, in contact with the chest.
the urologist performs a digital rectal examination to assess the
size and characteristics of the prostate and if there is any impediment
to proceed with the exploration.
a special ultrasound transducer is inserted into the rectum, covered
with a prophylactic and lubricated material for the process not to
is a cylinder slightly thicker than a finger, emitting ultrasounds
that are reflected in the prostate, producing a visible image on a
the ultrasound study of the prostate, it is used a special guide that
helps direct the biopsy needle to the prostate area to be studied.
needle is connected to a trigger device that introduces the needle
at high speed inside and outside the prostate tissue, resulting in
a cylinder of tissue that is placed in a container in formaldehyde,
with a label reflecting prostatic reference location.
patients experience some discomfort during the biopsy, but it is so
fast that the discomfort only lasts one second.
of prostate samples normally collected is from 6 to 8, although in
special cases it can be increased to 12-20.
can be performed without anesthesia, with local anesthesia, or when
necessary to perform many biopsies, with spinal or epidural anesthesia.
are typically given at the end of the procedure to prevent the occurrence
of prostate infection.
patients notice the presence of blood in the urine for a couple of
days after the biopsy, which usually requires no treatment.
Urological Association (AUA) Best Practice Policy Statement advises
antimicrobial prophylaxis (prevention with antibiotics) in all
patients having a transrectal prostate biopsy and recommends fluoroquinolones
(namely Cipro and Levaquin) as the antibiotic of choice.
currently no uniform protocol addresses the escalating problem
of fluoroquinolone resistant organisms that are responsible for
the majority of urinary tract infections and, more significantly,
for bloodstream infection, after diagnostic transrectal ultrasound
guided biopsy of prostate.
the rectal swab cultures do not show fluoroquinolone resistance,
a fluoroquinolone is given 2 hours prior to the prostate biopsy. If
resistance is detected, the appropriate antimicrobial based on bacterial
sensitivity is selected and administered.
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