Final answer:
To obtain a sterile urine specimen from an indwelling catheter, the student should aspirate urine from the collection port using aseptic techniques, which ensures the sample remains uncontaminated.
Step-by-step explanation:
In order to correctly obtain a sterile urine specimen from an indwelling catheter, the student must aspirate urine from the collection port (Option D). This method ensures that the urine is not contaminated with bacteria that could be present in the collecting bag or the urethra. Urine should be aspirated using a sterile syringe after cleaning the port with a disinfectant. It's important to use aseptic techniques to avoid contamination. The urine can then be transferred into a sterile container for analysis. This process aids in diagnosing diseases, checking for infection, and understanding the patient's overall health.
Remember, there should be no blood found in the urine unless there's a specific condition such as menstrual contamination, which is not abnormal. Urine is transported through the ureters to the urinary bladder and excreted through the urethra in a process controlled by the micturition reflex and both voluntary and involuntary neural control.