UTIs more commonly occur in males or females?
Females
1 in how many women, by the age of 24, will have had a UTI?
1 in 3
Which bacteria causes 80% of UTIs?
E.coli
As well as E.coli, what are the other causes of a UTI? (3 + 1 very rare)
If candida albicans is the cause of the UTI, in what people is it most likely to occur/what risk factors is it associated with?
Hospitalised patients with risk factors such as indwelling catheter, immunosuppression, diabetes or antibiotic treatment.
What are the three routes/classifications of a UTI occurs?
Although most UTIs aren’t associated with many risk factors, what are the possible risk factors for women? (8)
In men, what are the risk factors associated with UTIs? (5)
How does a UTI present? (10)
What are the signs on examination associated with a UTI/complicated UTI? (2)
2. Loin pain and fever (may be pyelonephritis)
What investigation is carried out with a suspected UTI, and what will give a positive finding?
Urine dipstick
1. Leucocyte esterase
2. Nitrite
If both positive, obviously very highly likely
If neither are positive, UTI is unlikely
If nitrite is positive, UTI is highly likely
If leucocyte esterase is positive, UTI is moderately likely
If the symptoms are present but the patient is catheterised, so urine dipstick is not possible, how should the patient be managed?
Treat with suspected UTI - it is reasonable to start on empiric antibiotics
Why should a urine dipstick not be tested in a person with an indwelling catheter?
Research studies have shown that they won’t distinguish between asymptomatic bacteriuria and a UTI
When should urine cultures be sent for, in women with a suspected UTI? (3)
In women who present for the first time with a UTI, if they have any of the following:
In women presenting with a UTI and positive dipstick testing (or negative dipstick testing but obvious symptoms), what is the recommended treatment? (2)
*Paracetamol and/or NSAIDs (ibuprofen/naproxen)
*3-day antibiotic course - either:
- Nitrofurantoin: 50mg 4X daily or 100mg
2X daily
- Trimethoprim: 200mg 2X daily
local guidelines may indicate which is preferred based upon local resistance patterns
What is not to be recommended for treatment of a UTI? (2)
In women with a complicated UTI, how long should the course of antibiotics be?
5-10 days
What is different about treating a UTI in a pregnant women, compared to not pregnant? (4)
In pregnant women with asymptomatic bacteriuria, what is the recommended antibiotic to use?
2. Nitrofurantoin (if amoxicillin is not suitable)
If a women with a catheter is found to have a UTI, what is the course of action and treatment plan?
If a women with a catheter is found to have asymptomatic bacteriuria, what is the course of action?
Do not treat with antibiotics, offer paracetamol and/or NSAIDs
What is pyelonephritis?
It is an infection within the renal pelvis, with or without active infection of the renal parenchyma. It is generally caused by bacteria ascending the from the lower urinary tract. Small cortical abscessed and streaks of pus in the renal medulla are often present.
What are the most common pathogens known to cause pyelonephritis? (5)
What are the complications of pyelonephritis? (3)