Explanation
(A) Lorazepam is an antianxiety agent that produces muscle relaxation and inhibits cortical and limbic arousal.
It has no action in the basal ganglia of the brain. (B) Benztropine acts to reduce EPS by blocking excess CNS cholinergic activity associated with dopamine deficiency in the basal ganglia by displacing acetylcholine at the receptor site. (C) Thiothixene is an antipsychotic known to block dopamine in the limbic system, thereby causing EPS. (D) Flurazepan is a hypnotic that acts in the limbic system, thalamus, and hypothalamus of the CNS to produce sleep. It has no known action in the vasal ganglia.

(A) This answer is incorrect. Dystonia refers to severe, painful muscle contractions. (B) This answer is correct. Parkinsonism commonly occurs approximately 1-2 weeks after initiation of antipsychotic drug therapy. Traditional signs are masklike facies, postural rigidity, shuffling gait, and resting tremor. (C) This answer is incorrect. Tardive dyskinesia is characterized by involuntary muscle movements of the face, jaw, and tongue. (D) This answer is incorrect. Akathesia is motor restlessness.

Section: Questions Set C
Explanation:
(A) Uterine contractions increase with activity. (B) Walking will increase the strength and regularity of uterine contractions in true labor. (C) Uterine contractions that are strong and regular facilitate cervical dilation. (D) Regular, strong uterine contractions, as in true labor, result in fetal descent.

(A) Decreased or absent breath sounds are frequently indicators of postoperative atelectasis. (B) Arterial blood gases are not indicated because there is no other information indicating impendingdanger. (C) Increasing O2 rate is not indicated without additional information. (D) Removing the dressing is not indicated without additional information.

Section: Questions Set D
Explanation:
(A) This answer is correct. Two risk factors are identified in this answer. (B) This answer is incorrect. Persons at risk tend to lack communication skills and effective coping patterns. (C) This answer is incorrect. Persons at risk are usually family members or those reluctant to provide care. (D) This answer is incorrect. This individual has a vested interest in providing care.