Question

In urine collection, what is a disadvantage of using cystocentesis?

1) iatrogenic hemorrhage can contribute red blood cells (RBCs) and leukocytes to the specimen.
2) samples often contain squamous epithelial cells from the urethra.
3) It will include contamination from the area around the lower genital tract.
4) it is the least sterile method.

Answer 1

The main disadvantage of cystocentesis in urine collection is the potential for iatrogenic hemorrhage, leading to contamination of the urine sample with blood and leukocytes, which could incorrectly suggest a urinary pathology.

Step-by-step explanation:

In urine collection, the disadvantage of using cystocentesis is that iatrogenic hemorrhage can contribute red blood cells (RBCs) and leukocytes to the specimen (option 1). This method, which involves inserting a needle directly into the bladder to obtain urine, can inadvertently damage blood vessels, leading to blood contamination in the urine sample, which could be misconstrued as pathological. Cystocentesis is typically a sterile procedure, so the other options, such as contamination from the urethra or the genital tract (option 2 and 3), and it being the least sterile method (option 4), are not accurate descriptions of the disadvantages associated with cystocentesis.