The For Kidneys Sake podcast series is brought to you by Imperial College Healthcare NHS Trust and North West London Integrated Care Board (NWL NHS)

How confident are you that the patient in front of you really has a urinary tract infection?

In this episode of For Kidneys Sake, consultant nephrologists Jeremy Levy and Andrew Frankel tackle one of the most common yet surprisingly complex conditions seen in primary care: urinary tract infections (UTIs). They explore why diagnosing a UTI is often less straightforward than it appears, emphasising the importance of symptoms over urine dipsticks and cultures alone. The discussion highlights the risks of overdiagnosis, particularly in older adults and those with asymptomatic bacteriuria, and explains when urine cultures can add value to clinical decision-making.

The conversation also focuses on practical treatment strategies, especially for patients with chronic kidney disease. Jeremy and Andrew discuss antibiotic selection, the limitations of commonly used treatments such as nitrofurantoin and trimethoprim in CKD, and how to approach recurrent or complicated infections. They share evidence-based prevention strategies, review red-flag symptoms that require urgent assessment, and look ahead to emerging options such as vaccines for recurrent UTIs.

5 Key Takeaways

Diagnose UTIs primarily through symptoms, using urine tests to support rather than drive decision-making.
Avoid treating asymptomatic bacteriuria except in specific circumstances such as pregnancy.
Consider kidney function when selecting antibiotics, as some commonly used agents may be ineffective or harmful in CKD.
Recurrent UTIs warrant further investigation, including imaging and preventive strategies.
Fever, systemic illness, or severe flank pain should raise concern for more serious infection and prompt urgent assessment.

The purpose of this podcast is to inform and educate health care professionals working in the primary care and community setting. The content is evidence based and consistent with NICE guidelines and North West Guidelines available at the time of publication.

The content of this podcast does not constitute medical advice and it is not intended to function as a substitute for a healthcare practitioner’s judgement.

You can also join the community by signing up to our newsletter here

Produced by award-winning media and marketing specialist Heather Pownall of Heather's Media Hub