Explanation
(A) This is a high-risk factor for potential suicide. (B) A previous suicide attempt is a definite risk factor for subsequent attempts. (C) Every threat of suicide should be taken seriously. (D) The client should be asked directly about his or her intent to do bodily harm. The client is never hurt by direct, respectful questions.

Explanation/Reference:
Explanation:
(A) At about 30-32 weeks' gestation, the amounts of the surfactants, lecithin, and sphingomyelin become equal. As the fetal lungs mature, the concentration of lecithin begins to exceed that of sphingomyelin. At 35 weeks, the L/S ratio is 2:1. Respiratory distress syndrome is unlikely if birth occurs at this time. (B) IUGR is associated with compromised uteroplacental perfusion or with viral infections, chromosomal disorders, congenital malformations, and maternal malnutrition. IUGR is not specifically assessed by analysis of the L/S ratio. (C) Analysis of the L/S ratio is not an assessment used to confirm intrauterine infection. (D) Elevated levels of _-fetoprotein in maternal serum or in amniotic fluid have been found to reflect open neural tube defects, such as spina bifida and anencephaly.

Explanation
(A) This time describes the time of onset of NPH insulin's action, rather than its peak effect. (B) NPH insulin, an intermediateacting insulin, usually begins to lower serum glucose levels about 2 hours after administration.
The action of NPH insulin peaks 8-14 hours after administration. It has a 20-30 hour duration. (C) The time stated is not the time of peak action for NPH insulin administered at 6:30 AM. (D) The time stated is not the time of peak action for NPH insulin administered at 6:30 AM.

Explanation
(A) Ritodrine is a sympathomimetic 2-adrenergic agonist that can cause an elevation of blood glucose and plasma insulin in pregnant women. Hyperglycemia can occur in women with abnormal carbohydrate metabolism because of their inability to release more insulin. (B) Hypokalemia can occur resulting from the action of the _-mimetics. It results from a displacement of the extracellular potassium into the intracellular space. (C) Ritodrine causes vasodilation of vessel walls, which can lead to hypotension. The body compensates by increasing heart rate and pulse pressure. (D) There is a lowering of serum iron resulting from the action of _-mimetics to activate hematopoiesis.

Explanation/Reference:
Explanation:
(A) Direct confrontation initially is nontherapeutic and may result in the client becoming frustrated and wanting to leave. (B) A positive, supportive attitude builds trust, and identifying positive strength raises self- esteem. Offering help allows the client to feel that he is not alone in dealing with problems. (C) Asking the client why or to give an explanation for his behavior puts him in a position of having to justify his behavior to the nurse. (D) Giving approval or placing a value on feelings or a behavior may limit the client's freedom to behave in a way that may displease another. This response may lead to seeking praise instead of progress.