Renal I Flashcards
what are the functions of the kidneys?
Filtration-waste elimination
Fluid and electrolyte balance
Acid-base balance
Blood pressure regulation
EPO production for RBC synthesis
Vitamin D conversion and Ca+ balance
Glucose Homeostasis
what are common terms for collection of urine specimens?
The first voided morning urine
Clean catch midstream
Catheterized specimen
Random
Strain urine
24-hour urine
what is an average urine volume for an adult?
1000 ml to 2000 ml/24 h
->30 ml/hour and <80 ml/hour
what is considered increased urine output for an adult? what is the term?
Polyuria > 2000 ml/24 h
what is considered decreased urine output for an adult? what are the terms?
Oliguria < 400 ml/24 h:
Anuria < 100 ml/24 h
UTI is a broad term that includes:
cystitis, urethritis and pyelonephritis
what is the most common bacteria for UTI’s?
E. Coli = 90% of uncomplicated acute UTI’s
what are some predisposition factors to UTI?
-female
-pregnancy
-age
-catheterization
-Chronic diseases: DM
why does DM make you more at risk for developing a UTI?
-increased glucose increases bacterial growth
-immunosuppression
when does age from men and women put them more at risk for UTI’s? why?
oPost-menopausal women – decrease in estrogen levels
oMen over 50 – prostate obstruction and urinary stasis
what are the 3 most common symptoms of cystitis?
Urgency, frequency, dysuria,
what is a late stage symptom of cystitis?
fever (more often associated with pyelonephritis).
what is the major symptoms of cystitis within the elderly population?
asymptomatic except they may demonstrate increased confusion
what is needed to diagnose/treat an acute uncomplicated UTI
-based on history, physical exam and UA alone
-no need for culture to treat.
How do we treat UTI’s?
-3-day ABO
-Phenazopyridine (Pyridium)– Can cause body fluids to turn reddish/orange
-hydrate
-void after intercourse
-avoid fragrance hygiene products
what are the causes of urethritis?
-sexually transmitted pathogens
-new sexual partner
-postmenopausal women common due to low estrogen levels.