kidney funciton Flashcards
Blood Urea Nitrogen (BUN)
REFERENCE VALUES:
6-25 mg/dL
Blood Urea Nitrogen (BUN)
Trending Upward
causes:
High-protein diet
Renal failure
Decreasing volume
CHF
GI Bleed
Fever
Increased protein
Catabolism
Blood Urea Nitrogen (BUN)
Trending Upward
presentation:
HTN
Fluid retention
Fatigue
Poor appetite
N/V
Itchy/dry skin
Decreased cognition
Dyspnea
Bone pain
Blood Urea Nitrogen (BUN)
Trending Upward
clinical implications:
Decreased tolerance to activity
Blood Urea Nitrogen (BUN)
Trending Downward
causes:
Hepatic disease
Malnutrition
Blood Urea Nitrogen (BUN)
Trending Downward
presentation:
Uncommon; usually not a concern
Serum Creatinine
REFERENCE VALUES:
Male: 0.7-1.3 mg/dL
Female: 0.4-1.1 mg/dL
Serum Creatinine
Trending Upward
causes:
Renal disease
Muscular dystrophy Rhabdomyolysis
Dehydration
Serum Creatinine
Trending Upward
presentation:
Reduced urine output
Dark-colored urine
Edema
Back pain
Fatigue
Low fever
Loss of appetite
Headache
Confusion
Dyspnea
Serum Creatinine
Trending Downward
causes:
Age
Pregnancy
Low muscle mass
Liver disease
Low-protein diet
Serum Creatinine
Trending Downward
presentation:
Fatigue (this is uncommon; can be precursor to autoimmune disease)
