PHYSICIANS’ MEET
An interesting case of
Acute Kidney Injury
Prof. MAHESH KUMAR’s unit,
Dr.R. Israel, PG
35 yr old male, auto driver by occupation
Admitted with
c/o decreased urine output for 3 days
c/o fever &
c/o abdominal pain for 10 days
HOPI
•Pt was apparently normal till 10 days back
•c/o fever- 10 days; low grade; intermittent;
not associated with chills & rigor, sweating
•c/o abdominal pain- 10 days; lower abdominal
pain; pricking; aggravated on passing urine;
associated with vomiting later; not associated
with constipation
•c/o decreased urine output- 3 days;
300ml/day;
Examination of other system
•CVS- S1, S2 +, no murmur
•RS- NVBS +, no added sounds
•CNS- NFND
•Abdomen- soft; mild hepatomegaly; bowel
sounds +, no FF, external genetalia normal
Initial treatment
•DIL
•SRD
•Nasal O2 & back rest
•I/O chart
•Fluid restriction
•Inj. CP 20 lac U QID
•Inj. Artesunate 120 mg iv stat & 60 mg iv od
•Tab. Pmol 500 tid
•Fluid challenging with lasix
Etiology
•Inflammation of the
structures of the kidney:
–the renal pelvis
–renal tubules
–interstitial tissue
•Almost always caused by
E.coli Presented By:
Jillymae
Etiology
•Usually seen in association with:
–Pregnancy
–diabetes mellitus
–Polycystic
–hypertensive kidney disease
–insult to the urinary tract from catheterization,
infection, obstruction or trauma
What happens to the kidney?
•The kidney becomes
edematous and inflamed
and the blood vessel are
congested
•The urine may be cloudy and
contain pus, mucus and
blood
•Small abscesses may form in
the kidney
Clinical Manifestations
•Acute pyelonephritis may be unilater or bilateral,
causing chills, fever, prostration and flank pain.
•Studies has shown that chronic pyelonephritis may
develop in association with other renal disease
unrelated to infection processes
•Azotemia (the retention in the blood of excessive
amounts of nitrogenous compounds) develops if
enough nephrons are nonfunctional
Signs and Symptoms
•Subjective Data in acute pyelonephritis:
–pt will become acutely ill, w/ malaise and pain
in the costovertebral angle (CVA)
–CVA tenderness to percussion is a common
finding
•In the chronic phase the pt may show
unremarkable symptoms such as nausea and
general malaise
Costovertebral Angle (CVA)
Chronic Pyelonephritis
The autopsy specimen
consists of a bisected
kidney which is
markedly shrunken
because of chronic
inflammation and
Scarring.
(B) multiple calculi in
the proximal ureter
(A) Calyceal system
Signs and Symptoms
•Objective data includes assessing the pt for:
–Elevated Temperature
–Chills
–Pus in the urine
•Systemic signs occur as a result of the chronic
disease:
–elevated BP
–Vomiting
–Diarrhea
Diagnostic Tests
•Diagnosis is confirmed by bacteria and pus
in the urine and leukocytosis
•A clean-catch or catheterized urinalysis
with culture and sensitivity identifies the
pathogen and determines appropriate
antimicrobial therapy
Medical Management
•Pt w/ mild signs and symptoms may be
treated on an outpatient basis with
antibiotics for 14 to 21 days
•Antibiotics are selected according to
results of urinalysis culture and sensitivity
and may include broad-spectrum
medications
Medicines
•Ampicillin or vancomycin
combined with an
aminoglycoside (Nebcin,
Garamycin)
•Cipro
•Septra
•Bactrim
•Floxin
Medical Management
•Adequate fluids at least eight 8-oz. glasses per
day
•Urinary analgesics such as Phenazopyridine
(Pyridium)
is helpful
•Follow up urine culture is indicated
Nursing Intervetion & Patient
Teaching
•Pt is taught to identify the
S&S of infection:
•Elevated temp.
•Flank pain
•Chills
•Fever
•Nausea
•Vomiting
•Urgency
•Fatigue
•General malaise
•Pt should also be taught:
•Indications
•Dose
•Length of course
•Side effects
•Importance of follow up care
with the physician on a
routine basis
Prognosis
•Prognosis is dependent upon early detection
and successful treatment
•Baseline assessment for every pt must include
urinary assessment because pyelonephritis
may occur as a primary or secondary disoder
Acute Renal Failure
•1. Prerenal Azotemia – Decreased RBF →
↓ GFR. Kidney retains sodium and water.
2. Intrinsic Renal – Usually due to acute
tubular necrosis or ischemia.
3. Postrenal – Outflow obstruction (stones,
BPH, etc.) Only seen if obstruction is bilateral.
Acute Renal Failure
Variable Prerenal Renal Postrenal
Urine Osmolality > 500 < 350 < 350
Urine Na < 10 > 20 > 40
Fe Na < 1% > 2% > 4%
BUN/ Cr ratio > 20 < 15 > 15
Uremia – Syndrome marked by ↑ BUN and
↑ Creatinine.
Consequences
•Anemia (failed erythropoietin production)
•Renal osteodystrophy (Vit. D not activated in
kidneys)
•Hyperkalemia (possible arrhythmias)
•Metabolic acidosis (↓ acid secretion and ↓
generation of HCO
3-.
Uremia – Syndrome marked by ↑ BUN and
↑ Creatinine.
•5. Uremic
encephalopathy
•6. Sodium and H
2
O
excess → CHF and
pulmonary edema
•7. Chronic
Pyelonephritis
•8. Hypertension