When both parents have sickle cell trait, which is the chance ...

[LaDunn]

When both parents have sickle cell trait, which is the chance their children will have sickle cell anemia?
 
  a. 25
  b. 50
  c. 75
  d. 100

Question 2

The nurse is teaching parents of an infant about the causes of iron deficiency anemia. Which statement best describes iron deficiency anemia in infants?
 
  a. It is caused by depression of the hematopoietic system.
  b. It is easily diagnosed because of an infant's emaciated appearance.
  c. Clinical manifestations are similar regardless of the cause of the anemia.
  d. Clinical manifestations result from a decreased intake of milk and the premature addition of solid foods.

[fauacakatahaias]

Answer to Question 1

ANS: A
Sickle cell anemia is inherited in an autosomal recessive pattern. If both parents have sickle cell trait (one copy of the sickle cell gene), then for each pregnancy, a 25 chance exists that their child will be affected with sickle cell disease. With each pregnancy, a 50 chance exists that the child will have sickle cell trait. Percentages of 75 and 100 are too high for the children of parents who have sickle cell trait.

Answer to Question 2

ANS: C
In iron deficiency anemia, the child's clinical appearance is a result of the anemia, not the underlying cause. Usually the hematopoietic system is not depressed in iron deficiency anemia. The bone marrow produces red cells that are smaller and contain less hemoglobin than normal red cells. Children who are iron deficient from drinking excessive quantities of milk are usually pale and overweight. They are receiving sufficient calories, but are deficient in essential nutrients. The clinical manifestations result from decreased intake of iron-fortified solid foods and an excessive intake of milk.

[LaDunn]

Excellent

[cassie_ragen]

TYSM