Which is true regarding an infant's kidney function? a. ...

[TFauchery]

Which is true regarding an infant's kidney function?
 
  a. Conservation of fluid and electrolytes occurs.
  b. Urine has color and odor similar to the urine of adults.
  c. The ability to concentrate urine is less than that of adults.
  d. Normally, urination does not occur until 24 hours after delivery.

Question 2

Which characteristic is representative of a full-term newborn's gastrointestinal tract?
 
  a. Transit time is diminished.
  b. Peristaltic waves are relatively slow.
  c. Pancreatic amylase is overproduced.
  d. Stomach capacity is very limited.

[verrinzo]

Answer to Question 1

ANS: C
At birth, all structural components are present in the renal system, but there is a functional deficiency in the kidney's ability to concentrate urine and to cope with conditions of fluid and electrolyte stress such as dehydration or a concentrated solute load. Infants' urine is colorless and odorless. The first voiding usually occurs within 24 hours of delivery. Newborns void when the bladder is stretched to 15 ml, resulting in about 20 voidings per day.

Answer to Question 2

ANS: D
Newborns require frequent small feedings because their stomach capacity is very limited. A newborn's colon has a relatively small volume and resulting increased bowel movements. Peristaltic waves are rapid. A deficiency of pancreatic lipase limits the absorption of fats.