UTI Flashcards
Acute pyelonephritis
can be spread by
HAEMATOGENOUS INFECTION
- primary site in the tonsils, carious teeth or from cutaneous infections, particularly boild or a carbuncle
-renal tuberculosis
ASCENDING INFECTION
- UT is the most common route, most likely when there is vesico-ureteric reflux
- urinary stasis and the stones are common
Risk Factors
FEMALES
CHILDHOOD, AFTER SEX, PREGNANCY
E.COLI INFECTION
Proteus and staphylococci split urea to form ammonia, which makes the urine alkaline and promotes the formation of calculi
Clinical features
FEVER, RIGORS FLANK PAIN COSTOVERTEBRAL TENDERNESS -sudden onset -severe -occasionally feels anteriorly INCREASE FREQUENCY OF URINATION DYSURIA SUPRAPUBIC PAIN BURNING SENSATION ALONG THE URETHRA CLOUDY OR BLOOD STAINED URINE NAUSEA, VOMITING HEADACHE, MALAISE CYSTITIS SYMPTOMS
Physical findings
General
- LOOKS ILL
- FLUSHED
- SWEATING
- FEVERISH
- TACHYCARDIA
- TONGUE IS DRY AND FURRED
Abdomen
- KIDNEY TENDERNESS
- RENAL ANGLE VERY TENDER
- MILD SUPRAPUBIC TENDERNESS
Complications
SEPTIC SHOCK
RENAL FAILURE
Investigations
FBC -pyuria (leucocytosis) URINALYSIS IMAGING -TRO pyonephrosis, perirenal abscess, obstruction of collecting system by stones
UTI in childhood/ VESICO-URETERIC REFLUX
Causes:
- VUR
- DETRUSPR-SPHINCTER DYSSYNERGIA
- POOR BLADDER EMPTYING HABITS
- STONES
- CONSTIPATION
VUR GRADING
Grade I: reflux into the ureter.
●● Grade II: reflux into the ureter and renal pelvis.
●● Grade III: reflux is associated with mild/moderate dilatation
on an IVU.
●● Grade IV: additional blunting of fornices.
●● Grade V: absent papillary impressions
VUR DIAGNOSIS
SCARRING dt renal parenchymal inflammation DETECTED BY IVU DMSA SCAN (dimercaptusuccinic acid) - to assess the degree of renal scarring
MANAGEMENT OF VUR
Surgery (ureteric
re-implantation, periureteric injections of Teflon or
collagen) should be considered if episodes of acute PN recur
despite antibiotic therapy or if severe reflux is accompanied
by a surgically correctable malformation.
How to prepare KUB Xray
Bowel prep
Give contrast