L5: Genitourinary system

Question 1

GU system in kids

Answer 1

• Glomerular filtration and absorption are relatively low in the infant and do not reach adult levels until the ages of 1 or 2 years.
• Glomerular epithelial cells are cuboidal
• Loop of Henle is short in newborns. Adult size and pee concentration ability reach adult levels by ~3m
• Urea synthesis and excretion are lower. Newborns retain more nitrogen and electrolytes for rapid growth
• Unable to excrete water at the same rate as adults
• Newborns are more at risk of developing severe metabolic acidosis
• Kidneys are less efficient at managing sodium deficiencies and excesses causing sodium excretion to be reduced

Question 2

Production of urine in infants rate

Answer 2

2mL/kg/hr

Question 3

Production of urine in children

Answer 3

1mL/kg/hr

Question 4

Health history for renal system

Answer 4

• Urological Instruments introduced to the area
• Hygiene
• Elimination
• Renal illness history