Explanation/Reference:
Explanation:
(A) Unusually aggressive behavior does not indicate a deepseated problem. (B) A lack of social interest results in poor participation in play activities with peers. Aggression would not be an expected behavior.
(C) The aggressive behavior was newly developed and not a routine behavior. (D) Play provides the child with opportunities for coping and adaptation. Aggression during the play activities would indicate a coping response.

Explanation/Reference:
Explanation:
(A) Sodium polystyrene sulfonate administration will not increase serum magnesium. Hypermagnesemia is virtually unknown except for clients in renal failure. (B) Sodium polystyrene sulfonate administration is not known to increase serum bicarbonate. (C) Decrease in serum potassium, the expected response of sodium polystyrene sulfonate, is secondary to the binding of this drug and potassium in the colon, and potassium is removed through the feces. (D) Serum calcium may actually increase with sodium polystyrene sulfonate administration, especially if calcium chloride is administered concurrently with this drug.

(A) Displacement involves transferring feelings to a more acceptable object. (B) Projection involves attributing one's thoughts or feelings to another person. (C) Reaction formation involves transforming an unacceptable impulse into the opposite behavior. (D) Suppression involves the intentional exclusion of unpleasant thoughts or experiences.

(A) Women who begin menarche late (after 13 years old) have a lower risk of developing breast cancer than women who have begun earlier. Average age for menarche is 12.5 years. (B) Women who have never been pregnant have an increased risk for breast cancer, but a positive family history poses an even greater risk. (C) A positive family history puts a woman at an increased risk of developing breast cancer. It is recommended that mammography screening begin 5 years before the age at which an immediate female relative was diagnosed with breast cancer. (D) Early menopause decreases the risk of developing breast cancer.

Explanation/Reference:
Explanation:
(A) The kidney can survive after 30 minutes of water submersion. (B) The cerebral neurons sustain irreversible damage after 4-6 minutes of water submersion. (C) The heart can survive up to 30 minutes of water submersion. (D) The lungs can survive up to 30 minutes of water submersion.