Answer to Question 1
Correct Answer: 1, 2, 3
The recovery phase of ATN is characterized by a process of tubule cell repair and regeneration and gradual return of the GFR to normal. Diuresis may occur as the nephrons and GFR recover. Serum potassium, BUN, and serum phosphate levels remain high and may continue to rise in spite of increasing urine output.
Answer to Question 2
Correct Answer: 855 mL
To calculate this patient's weight in kg, divide the weight in lbs. by 2.2. The patient weighs 209 lbs divided by 2.2 = 95 kg. Then use the equation 0.5 mL 95 = 47.5 mL/hr. To calculate the maximum amount of urine that this patient should produce over 18 hours, multiple the hourly amount of 47.5 mL 18 = 855 mL.