Renal

Question 1

Blood Urea Nitrogen (BUN)

Answer 1

7-20 mg/dL

• Nitrogenous end product from breakdown of proteins and AA’s
• (elevated) best indicator for dehydration status
• also indicates kidney function (elevated)

Question 2

Glomerular Filtration Rate (GFR)

Answer 2

90-120 mL/min

• Amount blood filtered by glomeruli in one minute
• As CKD worsens, GFR decreases

Question 3

Urine output

Answer 3

• At least 30 mL/hr

- Average adult 1500 mL/day

Question 4

Oliguria

Answer 4

UO <400 mL in 24 hours

low urine output

Question 5

Anuria

Answer 5

UO of <100mL in 24 hours or no UO at all

-Low= Shock?!

Question 6

Urine Specific Gravity

Answer 6

1.010-1.030

• Kidneys ability to excrete water
• Reflects hydration status and ability of kidneys to concentrate urine

high=concentrated

Question 7

Urine Osmolality

Answer 7

300-900 m0sm/kg

-Kidneys ability to concentrate or dilute urine

high=concentrated with particles
low=diluted

Question 8

Uric acid

Answer 8

Female: 2.5-8 mg/dL
Male: 1.9-7.5 mg/dL

• Breakdown of purines
• Produced by liver excreted by kidneys
• Gout: uric acid crystals in joints

Question 9

Creatinine

Answer 9

0. 6-1.2 mg/dL
   - End product of protein metabolism, filtered via glomerulus
   - high=kidney disease