Urinary Tract Infections to include epididymitis, prostatitis and pylonephristis Flashcards
True/False
Urinary tract infections are among the most common entities encountered in medical practice.
True
What is the most common causative agent for UTI
Coliform bacteria
Escherichia coli- being the most common
What is the most common route for UTI
Ascending infection from the urethra
True/False
Hematogenous spread to the urinary tract is common
False
Uncommon
Infection of the bladder is known as what?
Cystitis
Acute Cystitis
most commonly do to what type of bacteria?
coliform bacteria
(a) Especially E coli
(b) Occasionally gram-positive bacteria (enterococci).
Uncomplicated cystitis in men is rare and implies a pathologic process such as what requiring further investigation?
infected stones,
prostatitis,
chronic urinary retention
Signs and symptoms of what issue?
(a) Irritative voiding symptoms
1) Frequency
2) Urgency
3) Dysuria
(b) Suprapubic discomfort
(c) Women may experience hematuria and symptoms often appear following sexual intercourse
(d) Usually afebrile
(e) P.E. may elicit suprapubic tenderness with palpation
Acute Cystitis
Acute Cystitis Differential Diagnosis
(a) Women
(a) Men
(a) Women
1) Vulvovaginitis
2) Pelvic inflammatory disease
(b) Men
1) Urethritis (urethral discharge)
2) Prostatitis (prostatic tenderness)
These issues can cause what type of cystitis?
1) Pelvic irradiation
2) Chemotherapy
3) Bladder carcinoma
4) Interstitial cystitis
5) Voiding dysfunction disorders
6) Psychosomatic disorders
Noninfectious cystitis
Acute cystitis
Laboratory Findings
Urinalysis may reveal:
1) Pyuria
2) Bacteriuria
3) Various degrees of hematuria
Urine culture is positive for the offending organism
Acute cystitis
Follow-up imaging using CT scanning is warranted if
pyelonephritis,
recurrent infections,
anatomic abnormalities are suspected
Imaging
Because uncomplicated cystitis is rare in men, elucidation of the underlying problem with appropriate investigations, such as ________________, is warranted.
abdominal ultrasonography or cystoscopy (or both)
Acute cystitis treatment
1) antibiotic therapy
-Ciprofloxacin (Cipro) 250 mg every 12 hours, PO for 3 days
-Nitrofurantoin (Macrobid) 100 mg every 12 hours PO for 5-7 days
2) analgesics
Phenazopyridine (Pyridium) - urinary analgesic
100-200 mg every 8 hours as needed, PO for a MAX of 3 days
3) Sitz baths may provide symptomatic relief.
Women who have more than ______ episodes of cystitis per year are considered candidates for prophylactic antibiotic therapy to prevent recurrence after treatment of urinary tract infection.
-Prior to institution of therapy, a thorough urologic evaluation is warranted to exclude any what?
- three
- anatomic abnormality (eg, stones, reflux, and fistula).
The three most commonly used oral agents for prophylaxis are what?
1) Trimethoprim-sulfamethoxazole (40 mg/200 mg) daily
2) Nitrofurantoin (100 mg) daily
3) Cephalexin (250 mg).
**Single dosing at bedtime or at the time of intercourse is the recommended schedule for all three.**
Acute cystitis
Infections typically respond rapidly to therapy.
-Failure to respond suggests what?
- resistance to the selected medication or
- anatomic abnormalities requiring further investigation.
Referral to Urology is indicated when:
1) Suspicion or radiographic evidence of anatomic abnormality.
2) Evidence of urolithiasis.
3) Recurrent cystitis due to bacterial persistence.
This defines what?
Infectious inflammatory disease involving the kidney parenchyma and renal pelvis.
Pyelonephritis
Common causative agents for Pyelonephritis
Gram-negative bacteria are the most common ***
(a) E coli,
(b) Proteus,
(c) Klebsiella,
(d) Enterobacter,
(e) Pseudomonas.
Gram-positive bacteria
(a) Enterococcus faecalis
(b) Staphylococcus aureus
Pyelonephritis infection usually ascends from the lower urinary tract with the exception of what through which route?
S aureus, which usually is spread by a hematogenous route (blood stream).
Signs and symptoms of what issue
(a) Fever
(b) Flank pain
(c) Irritative voiding symptoms (urgency, frequency, dysuria)
(d) Shaking chills
(e) Associated nausea and vomiting
(f) Diarrhea
(g) Tachycardia
(h) Costovertebral angle tenderness is usually pronounced.
Pyelonephritis
Pyelonephritis DDx
(a) Acute cystitis or a lower urinary source
(b) Acute intra-abdominal disease
1) Appendicitis
2) Cholecystitis
3) Pancreatitis
4) Diverticulitis
(c) In males
1) Epididymitis
2) Acute prostatitis
(d) Lower lobe pneumonia