Urinary Tract Infections Retention, Reflux & Incontinence Flashcards
Urinary Tract Infections?
- Most common reason of infections health care
- Most common bacterial infection in women
- Common site of acquired infection
- May be caused by a variety of disorders including tuberculosis, fungal and parasitic infections
**Bacterial infection is most common
***Escherichia coli (E.coli) most common pathogen
-Counts of 10 5th CFU/mL or more indicate signs/symptoms are indicative of UTI - Counts as low as 10 2nd in a person with symptoms is indicative of UTI
Classification of Urinary Tract InfectionsUpper versus lower
Lower UTI?
- Usually no systemic manifestations
**Cystitis –inflammation of the bladder
**Prostatitis
**Urethritis-inflammation of the urethra
Upper UTI
- Renal parenchyma, pelvis, and ureters
- Typically causes fever, chills, flank pain
** Pyelonephritis: acute and chronic:
Inflammation of renal parenchyma and collecting system
Interstitial nephritis
Renal abscess and perirenal abscess
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Classification of UTI. Urosepsis
- UTI that has spread systemically
- Life-threatening condition requiring emergent treatment
- Can lead to septic shock and death
Factors Contributing to UTI
- Bacterial invasion of the urinary tract
- Urethrovesical reflux, ureterovesical reflux
- Uropathogenic bacteria
- Shorter urethra in women
- Risk factors
Risk for Urinary Track Infection
Patients at Risk:
Immunosuppressed
Diabetic
Have kidney problems
Have undergone multiple antibiotic courses (build resistance)
Have traveled to developing countries: Travel to developing countries can increase the risk of urinary tract infections (UTIs) due to various factors such as poor sanitation, lack of access to clean water, and exposure to different strains of bacteria.
In developing countries, the risk of UTIs may be higher due to poor hygiene practices and limited access to proper medical care.
Classification of UTI
- Complicated versus uncomplicated
Uncomplicated
**Occurs in otherwise normal urinary tract: Like in someone like me who doesn’t have any other conditions like diabetes hbp etc
**Usually only involves the bladder
-Complicated
Coexists with presence of
**Obstruction or stones
**Indwelling urinary catheters or stents
**Urinary diversions
**Abnormal GU tract
**Diabetes/neurological disease
**Resistance to antibiotics
**Immunocompromised
**Pregnancy induced changes
***Recurrent infection
Etiology & Pathophysiology of UTI
-Alteration of defense mechanisms increases risk for contracting UTI
**Compromising immune response factors
***Age, HIV, diabetes
-Predisposing factors:
**Factors increasing urinary stasis
**BPH, tumor, neurogenic bladder
**Foreign bodies
***Catheters, calculi, instrumentation
**Anatomic factors
***Obesity, congenital defects, fistula
**Functional disorders
***Constipation
**Other
***Pregnancy, multiple sex partners (women)
Etiology & Pathophysiology
- Organisms introduced via ascending route form urethra and originate in the perineum
**Gram-negative bacilli normally found in the GI tract are a common cause
**Urologic instrumentation allows bacteria to enter urethra and bladder
**Sexual intercourse promotes “milking” of bacteria from perineum and vagina
***May cause minor urethral trauma - Less common routes
**Bloodstream
**Lymphatic system
Etiology & Pathophysiology 2.0 of a UTI
- Rarely results via hematogenous route meaning trough an injury on your arm for example. Blood !!!
- Kidney function occurring from hematogenous transmission always preceded by injury to urinary tract
**Obstruction of the ureter
**Damage form stones
**Renal scars
Etiology & Pathophysiology 2.0
- Rarely results via hematogenous route
- Kidney function occurring from hematogenous transmission always preceded by injury to urinary tract
**Obstruction of the ureter
**Damage form stones
**Renal scars
Etiology & Pathophysiology 3.0 of a UTI
- Catheter-associated urinary tract infections (CAUTI) are the most common HAI
**Most are underrecognized and undertreated
***Often caused by E. coli and less frequently Pseudomonas species
Clinical Manifestations of UTI
- Range from painful urination in uncomplicated urethritis or cystitis
- To severe systemic illness associated with abdominal or back /flank pain, fever, urosepsis, and decreased kidney function or AKI in some cases of pyelonephritis (upper urinary tract)
Clinical Manifestations of UTI
- Symptoms r/t either bladder storage or bladder emptying
Bladder storage
**Nocturia- waking up 2 or more times to void
**Nocturnal enuresis- loss of urine during sleep
Bladder emptying
**Weak stream
**Hesitancy – difficulty starting the urine stream
**Intermittency – interruption of the urinary stream during voiding
**Postvoid dribbling – urine loss after completion of voiding
**Urinary retention – inability to empty urine from the bladder
**Dysuria –painful or difficult voiding
Clinical Manifestations 2.0
- Older adults
**Symptoms often absent
**Non localized abdominal discomfort rather than dysuria
**Cognitive impairment possible
**Change in behavior, confusion or agitation possible
**Fever less likely
UTI Diagnostic Studies
- History & physical examination
- Dipstick urinalysis
**Identify presence of nitrites, WBCs, and leukocyte esterase - Urine culture & sensitivity (if indicated)
**Clean-catch sample preferred
**Specimen by catheterization or supra needle aspiration more accurate
**Determine bacteria susceptibility to antibiotics
-Ultrasound
-CT scan (CT urogram)
UTI Interprofessional Care
- Drug therapy with antibiotics
Uncomplicated UTI – short term course (typically 3 days)
**Trimethoprim/sulfamethoxazole – inexpensive, taken twice daily
**Nitrofurantoin (Macrodantin) -3-4 x /day or Macrobid (long acting) 2x/day
***Ampicillin, amoxicillin, cephalosporins
-Complicated UTI – long term treatment (7-14 days or more)
**Fluoroquinolones –Ciprofloxacin (Cipro)
-Other
**Antifungals –amphotericin or fluconazole
**Urinary analgesic –used in conjunction with antibiotics; provides soothing effect on urinary tract mucosa; stain s urine reddish orange
**Prophylactic or suppressive antibiotics
Nursing Management of a UTI
- Health history
**previous UTI, calculi, stasis, retention, pregnancy, STIs;
**antibiotics, anticholinergics, antispasmotics;
**instrumentation, (instruments/tools used in the past to diagnose or treat this pt ex iodine, insertion of a catheter)
urinary hygiene
**ANV, chills, nocturia, frequency, urgency
*Suprapubic/LBP lower back pain, bladder spasms, dysuria, burning with urination - Objective
**Fever
**Hematuria, foul smelling urine, tender/enlarged kidney
**Leukocytosis, + bacteria, WBCs, RBCs, pyuria, ultrasound, CT scan, IVP
Nursing Management 2.0 of a UTI
- Acute care
**Adequate fluid intake
**Avoid caffeine, alcohol, citrus, chocolate, spicey foods
**Application of local heat (warm pack)
**Instruct patient about drug therapy and SE; full course
**Monitor for signs of improvement and cessation of symptoms
**Report onset of flank pain, persistence of symptoms, fever
**Educate patient about voiding after intercourse, temporality d/c contraceptive diaphragm, regular voiding (3-4 hours), f/u care
- Health Promotion
**Cranberry juice or tablets may reduce # of UTIs
**Avoid unnecessary catheterization; early removal of indwelling catheters
Acute Pyelonephritis
AFECTA 3 PARTES
Inflammation of 1 renal parenchyma and
2colleting system (including 3 the renal pelvis)
Most common cause is bacterial infection
Etiology and Pathophysiology Pyelonephritis
- Preexisting factor usually present
- Commonly starts in the renal medulla and spreads to adjacent cortex
- Recurrent episodes lead to scarred, poorly functioning kidney and chronic pyelonephritis
**Vesicoureteral reflux –retrograde (backward) movement of urine for the lower to the upper urinary tract
**Dysfunction of the lower urinary tract –obstruction from BPH; stricture, stone
**CAUTI
Clinical Manifestations Acute Pyelonephritis
- Mild fatigue, chills, fever, vomiting, malaise, flank pain
- LUTS characteristic of cystitis
**Dysuria, urgency, frequency - Costovertebral tenderness to percussion on affected side
- Manifestations may subside in a few days, even without therapy
**Bacteriuria and pyuria still persist
Diagnostics
- History and physical exam
- Laboratory tests
**Urinalysis (UA)
**Urine for C &S (Urine for C&S stands for urine culture and sensitivity)
**CBC with differential
**BC BLOOD CULTURE (means blood sample) if bacteremia suspected
**Ultrasound
**CT urogram