Renal Part II Flashcards
Urine specific gravity normal
1.005-1.030
Cloudy urine
Protein, pus,
Dark urine
Bacteria
Bence-Jones proteins (Antibody fragments)
Multiple Myeloma
– Indicates multiple myeloma
Bence-Jones proteins (Antibody fragments)
– Indicates multiple myeloma
Glucose and ketones
– Carbonyl group flanked by 2 alkyl groups
– Indicate DM
Urinary casts
– Indicate inflammation of kidney tubules
Blood (hematuria)
– Small amounts
• Infection, inflammation, or tumors in urinary tract
– Large amounts (hematuria)
Increased Increased glomerular glomerular permeability permeability or hemorrhage
Elevated protein (proteinuria, albuminuria)
– Leakage of albumin or mixed plasma proteins
into filtrate, foamy urine
• Used for diagnosis of post-streptococcal
glomerulonephritis
Anti-streptolysin O or anti-streptokinase titers
Elevated renin levels –
Indicate kidney as a cause of hypertension
Urine C&S –
Identify causative organism of infection – Select appropriate drug treatment
Radiologic tests – Radionuclide imaging, angiography, ultrasound,CT, MRI, intravenous pyelography – U
sed to visualize structures and possible abnormalities, flow patterns, and filtration rates
Cast
remodeling, cut down formation of calcium oxalate stones
Cellular cast
fragments of cellular cells Acute tubular necrosis(ATN)
Clearance tests clearance – Used to Cystoscopy – Visualizes\_\_\_\_\_\_\_\_\_Tract –used for \_\_\_\_\_\_\_\_\_\_\_\_\_or to \_\_\_\_\_\_\_\_stones
Biopsy
–used for?
– e.g., creatinine or inulin
assess GFR
-lower urinary tract
biopsy or to remove kidney
-Used to acquire tissue
specimens
WBC
eosinophils (0-3 %)
Types of incontinence (3 types)
Stress
Urge
Overflow
Stress incontinence
Relax pelvic flow
increased abdominal pressure
Urge incontinence.
Bladder oversensitivity from infection
Neurologic disorders
Overflow incontinence
Urethral Blockage
Bladder unable to empty properly
Incontinence
– Loss of voluntary control of the bladder
• Enuresis
– Involuntary urination by a child age 4+ years
• Often related to developmental delay, sleep
pattern, psychosocial aspect
• Stress incontinence
– Increased intra-abdominal pressure forces
urine through sphincter
• Coughing, lifting, laughing; multiple pregnancies
Overflow incontinence
– Incompetent bladder sphincter
– Older adults weakened what muscle?
Weakened detrusor muscle may muscle may prevent prevent complete emptying of bladder – frequency and incontinence
Nuclear scan
dye is given to patient, then scan every 3 minutes
Spinal cord injuries or brain damage
Neurogenic bladder –
Neurogenic bladder: may be spastic or flaccid
• Interference with CNS and ANS voluntary controls
of the bladder
Inability to empty bladder
– May be accompanied by overflow incontinence – Spinal cord injury at sacral level blocks micturition reflex – May follow anesthesia (general or spinal)
UTI • Very common infections
Urine is an excellent growth _________
growth medium.
Lower urinary tract infections
– Cystitis and urethritis
Upper urinary tract infections
– Pyelonephritis
Common causative organism for UTI
– Escherichia coli
UTI associated with
Heavy purulence and presence of gramnegative and gram-positive organisms
More common UTI in population because
Women:
Older men:
Children:
- Shortness of urethra, proximity to anus
- Prostatic hypertrophy and urine retention
- Congenital abnormalities in children
Other common predisposing factors UTI
– Incontinence
– Retention of urine
– Direct contamination with fecal material
Cystitis
Cystitis
• Bladder wall &urethra inflamed
Dysuria Dysuria, urgency urgency, frequency frequency, and nocturia nocturia
• Systemic signs may be present – Fever, malaise, nausea, leukocytosis
• Urine often cloudy with unusual odor
• Urinalysis indicates bacteriuria, pyuria,
microscopic hematuria
Pyelonephritis
Urinary casts present.
• Reflection of renal tubule involvement
• Treatment with antibiotics
Glomerulonephritis
Usually follows strep infection Urine dark and cloud Facial and periorbitla edema elevated BP Flank and back pain Increase UO
Glomerularnephritis, lab test
Elevated Antibodies against strep
Elevated serum urea and creatinine
Low complement levels.
Tx of glomer
Sodium restriction possible – Protein and fluid intake decreased in severe cases Drug treatment • Glucocorticoids • Antihypertensives