Urinary Tract Infections Flashcards
Lower UTI
Cystitis
Upper UTI
Pyelonephritis
Uncomplicated
Non-pregnant females with no structural abnormalities
Complicated
Males
Pregnant patients
Obstructions or Kidney Stones
Congenital abnormalities
Indwelling Catheters
Prostatic hypertrophy
Neurologic deficit
Etiology
Gram Positive: staphylococcus saprophyticus; Enterococcus faecalis
Gram Negative: E coli (80-90% of patients!); Pseudomonas aeruginosa; Proteus mirabilis; Klebsiella spp
Bacteriuria
Bacteria in the urine
Pyuria
Increased WBC in the urine
Urinary Tract Infection
Presence of microorganisms in the urinary tract not due to contamination producing symptoms and with the potential to invade the tissues
Clinical Presentation - Cystitis
Dysuria
Frequency
Urgency
Suprapubic pain
Hematuria
Nocturia
Clinical Presentation - Pyelonephritis
Fever
Chills
Nausea/Vomiting
Suprapubic pain
Hematuria
Flank Pain
Costovertebral angle tenderness (CVA)
Goals of Therapy
Symptom Resolution
Prevent or treat systemic consequences
Eradicate invading organisms
Prevent recurrence
Minimize consequences associated with therapy
Limit collateral damage
First Line Uncomplicated Cystitis
Nitrofurantion
Trimethoprim/Sulfamethoxazole
Fosfomycin
Nitrofurantoin Dosing (uncomplicated)
100 mg PO BID for 5 days
Nitrofurantoin Adverse Reactions
urine discoloration
pulmonary toxicity
Trimethoprim/Sulfamethoxazole dosing (uncomplicated)
160/800 mg PO BID for 3 days
Trimethoprim/Sulfamethoxazole Adverse Reactions
photosensitivity
crystalluria
Rashes (SJS)
Nitrofurantoin Considerations
Discouraged use CrCl 60 mL/min but can be safe down to CrCl 30 mL/min
Trimethoprim/Sulfamethoxazole Considerations
There is an increase of resistance
Fosfomycin Dosing
3g PO for one dose
Fosfomycin Considerations
1 dose!
Uncomplicated second line therapy
Fluroquinolones- ORAL (ciprofloxacin, levofloxacin)
Beta-Lactams ORAL (amox/clav; cefaclor; cefpodoxime)
Fluroquinolones Uncomplicated Durations
3 days
Fluroquinolones Uncomplicated Considerations
Increased resistance
Beta-Lactams Uncomplicated Durations
3-7 days
Beta-Lactams Considerations
Decreased efficacy for shorter durations - 5-7 days are more effective than 3 day treatments
Uncomplicated Durations
Nitrofurantoin: 5 days
Trimethoprim/Sulfamethoxazole: 3 days
Fosfomycin: 1 day
Fluoroquinolones: 3 days
Beta-Lactams: 5-7 days
Male Urinary Tract Treatments
Nitrofurantoin
Sulfamethoxazole/Trimethoprim
Fosfomycin
Male urinary tract nitrofurantoin dosing
100 mg po BID for 7 days
Male urinary tract nitrofurantoin duration
7 days
Male urinary tract trimethoprim/sulfamethoxazole dosing
160/800 mg PO BID for 7 days
Male urinary tract trimethoprim/sulfamethoxazole duration
7 days
Male urinary tract Fosfomycin dosing
3 g PO every other day for 3 doses
Male urinary tract Fosfomycin duration
every other day for 3 days
Non-obstructing renal stone Treatments
Fluoroquinolones
Trimethoprim/Sulfamethoxazole
Beta-lactams
Other susceptible agents
Non-obstructing renal stone Fluoroquinolone duration
7 days
Non-obstructing renal stone trimethoprim/sulfamethoxazole duration
14 days
Non-obstructing renal stone beta-lactams duration
14 days
Non-obstructing renal stone other agents duration
usually 14 days
Urinary retention or Neurogenic bladder treatment
Any susceptible agent
Mechanical impairment to urinary flow treatment
Any susceptible agent
Urinary retention or Neurogenic bladder treatment duration
7 days
Mechanical impairment to urinary flow treatment duration
7 days
Catheter-associated UTI treatment options
Remove or change cathether
Bacteriuria treatment
Catheter-associated UTI treatment duration with ABX
7 days; may be up to 10-14 days
UTI during pregnancy
Treat bacteriuria WITH or WITHOUT symptoms
Pregnancy treatment options
Amoxicillin
Amox/Clav
Cephalexin
Nitrofurantoin (NOT close to delivery)
Drugs to AVOID in pregnancy
Tetracyclines
Trimethoprim/Sulfamethoxazole
Fluoroquinolones
Pregnancy Treatment duration
7 days
Treatment options in children
Amox/Clav (PO)
Trimethoprim/sulfamethoxazole (PO)
Second or third generation cephalosporin (PO or IV)
Ampicillin/Sulbactam (IV)
Aminoglycosides (IV)
Treatment duration in children
7-14 days
Pyelonephritis inpatient treatments
Ceftriaxone
Gentamicin
Levofloxacin
Ciprofloxacin
Ertapenem
Pyelonephritis dosing: ceftriaxone
1 g IV daily
Pyelonephritis dosing: gentamicin
5-7 mg/kg IV daily
Pyelonephritis dosing: levofloxacin
750 mg IV daily
Pyelonephritis dosing: Ciprofloxacin
400 mg IV every 8-12 hours
Pyelonephritis dosing: Ertapanem
1 g IV daily
Pyelonephritis Outpatient Treatment
Fluoroquinolones (PO)
Ceftriaxone IV then Fluoroquinolone PO
Ceftriaxone IV then Trimethoprim/Sulfamethoxazole PO
Aminoglycoside IV then Fluoroquinolone PO
Aminoglycoside IV then Trimethoprim/Sulfamethoxazole PO
Prostatitis
Inflammation of prostate gland and surrounding tissue
Clinical presentation of prostatitis
High fever
Chills and malaise
Localized pain
Increased urinary frequency, urgency, and retention
Prostatitis acute treatment
Trimethoprim/sulfamethoxazole
Cephalosporin
Fluoroquinolones
Beta-lactam/inhibitor combinationP
Prostatitis acute treatment duration
4 weeks
Prostatitis chronic treatment
Trimethoprim/sulfamethoxazole
Fluoroquinolones
Prostatitis chronic treatment duration
4-6 weeks; may be up to 12 weeks
ONLY treat asymptomatic bacteriuria in….
Pregnant patients
Children
Recurrent management
Less than 3 episodes a year: treat each episode separately
More than 3 episodes a year: treat each episode and consider prophylaxis treatment