A nurse is caring for a client with an indwelling urinary catheter and notes cloudy, dark yellow urine with an output of 120 mL What is the nurse's best immediate action?

Remove the catheter and prepare to insert a new one with sterile technique.

Irrigate the catheter immediately to clear any obstruction causing the discoloration.

Obtain a urine specimen for laboratory testing and continue to monitor the client

Increase the client's fluid intake without further assessment or intervention.