part 3 Flashcards
What are the types of acute glomerulonephritis (AGN)?
- mostly post infection (pneumococcal, streptococcal, or viral)
- primary event
- manifestation of a systemic disorder (lupus, sickle cell, etc)
What are the symptoms of AGN?
- generalized edema: due to decreased GFR (eyes and face and may spread to lower extremities)
- hypertension (due to increased extracellular fluid)
- oliguria (Beverly reduced volume)
What is acute post streptococcal glomerulonephritis (APSGN)
- response to a group A beta-hemolytic streptococcal infectious of skin or pharynx
- inflammation of glomeruli of kidneys
What is the pathophysiology of APSGN?
-host gets infection
-antibodies form
-antibodies and antigens form immune response
-antigen-antibody complex deposit into glomerular filtration membrane
-deposits activate inflammatory response
-enzymes cause damage to glomerular cell wall
-increases membrane permeability
-proteins and RBC’s can pass into urine
-this causes decreased GFR rate (renal insufficiency)
and alters capillary permeability (hematuria)
What are the clinical manifestations of APSGN?
- can be asymptomatic
- preceded by skin/pharynx infection
- abrupt onset
- flank or mid abdominal pain
- face or dependent edema
- weight gain
- hematuria (tea colored urine)
- proteinuria
- oliguria
- moderately high BP
One of the clinical manifestations of APSGN is moderately high BP. What can this acute hypertension cause?
-encephalopathy: headache blurred vision N/V irritability lethargy confusion seizures
What are the diagnostic tests for APSGN?
- BUN and Creatinine
- decreased serum protein
- CBC
- serum lipid: usually increased
- elevated antistreptolysin O (ASO) titer: antibodies from the strep infection
- reduced C3
- urinalysis
- HGB and HCT: decreased due to hematuria
What is the treatment for APSGN?
- supportive
- bed rest-acute phase, but not necessary throughout
- treat edema and mild hypertension: sodium restriction, diuretic, antihypertensive
- antibiotics: eradicate original infection
What is the prognosis for a pt with APSGN?
good:
most recover without significant loss of renal function or recurrence
What need to be monitored for the pt with APSGN?
- I and O
- daily weight
- electrolytes
- vitals esp BP
- renal function
- low sodium and protein diet