Explanation
(A) Women who smoke during pregnancy are at increased risk for miscarriage, preterm labor, and IUGR in the fetus. (B) Although smoking produces harmful effects on the maternal vascular system and the developing fetus, it has not been directly linked to fetal anomalies. (C) Smoking during pregnancy has not been directly linked to anemia in the fetus. (D) Smoking during pregnancy has not been linked to nicotine withdrawal symptoms in the newborn.

Explanation
(A) An adult diazepam dosage for treatment of anxiety is 2-10 mg PO 2-4 times daily. The order as written would place a client at risk for overdose. (B) A high room temperature could increase hyperventilating episodes by stimulating the respiratory system. (C) Breath holding and breathing into a paper bag may be useful in controlling hyperventilation. Both measures increase CO2 retention. (D) Distraction will not prevent or control hyperventilation caused by anxiety or fear.

(A) An increase in core body temperature increases metabolism and results in an increase in ICP. (B) Decreased serum osmolality indicates a fluid overload and may result in an increase in ICP. (C) Hypo-osmolar fluids are generally voided in the neurologically compromised. Using IV fluids such as D5W results in the dextrose being metabolized, releasing free water that is absorbed by the brain cells, leading to cerebral edema. (D) Hypercapnia and hypoventilation, which cause retention of CO2 and lead to respiratory acidosis, both increase ICP. CO2 is the most potent vasodilator known.

Explanation
(A) The manic client's mood may easily change from euphoric to irritable. The nurse should avoid confrontation and let the client know what she can do, rather than what she cannot. (B) Although helpful to refocus or redirect the manic client to discuss only one topic at a time, distractibility is very high and it's best to avoid long discussions. (C) Manic clients have a tendency to manipulate persons in their environment. Staff should monitor intake, including at mealtime and snacks, and be consistent in their approach to meeting nutritional needs. (D) Manic clients may not sit and eat complete meals, but they can carry foods and liquids from regular meals with them. Staff can monitor and give high-caloric and high-energy snacks and liquids.

Explanation/Reference:
Explanation:
(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.