Explanation
(A) Hiccups are not a sign of impending hepatic coma. (B) Anorexia is not a sign of impending hepatic coma.
(C) One of the earliest symptoms of hepatic coma is mental confusion. Asterixis, a flapping tremor of the hand, may also be seen. (D) This sign is associated with the later stages of hepatic coma. Fetor hepaticus, a characteristic odor on the breath that smells like acetone, may sometimes be noted when the liver fails.

Explanation/Reference:
Explanation:
(A) This answer is incorrect. Phenothiazines are antipsychotic drugs and produce the symptoms. (B) This answer is correct. Anticholinergic agents are often used prophylactically for extrapyramidal symptoms.
They balance cholinergic activity in the basal ganglia of the brain. (C) This answer is incorrect. Anti- Parkinsonian drugs would increase the symptoms. (D) This answer is incorrect. Tricyclic agents are used for symptoms of depression.

(A)
Elevating the child's head to a 30-degree angle is the recommended position for gastroesophageal reflux. The supine position predisposes the child to aspiration. (B) Small, frequent feedings with thickened formula are recommended to minimize vomiting. (C) Antacids should be given at the same time as the feeding to improve their buffering action.
(D)
The infant should be kept still after feedings to reduce the risk of vomiting and aspiration. Vigorous activities should be carried out before feedings.

Explanation
(A) An enlarged penis is not a sign of chlamydia. (B) Secondary lymphadenitis is a complication of lymphogranuloma venereum. (C) Untreated chlamydial infection can spread from the urethra, causing epididymitis, which presents as a tender, scrotal swelling. (D) Hepatomegaly is not a complication.

(A) Lorazepam is a benzodiazepine, or antianxiety agent, that potentiates the effects of _aminobutyric acid in the CNS, which is not the CNS neurotransmitter EPS. (B) Triazolam is a benzodiazepine sedative-hypnotic whose action is mediated in the limbic, thalamic, and hypothalamic levels of the CNS by - aminobutyric acid. (C) Benztropine is an anticholinergic agent, and the drug of choice for blocking CNS synaptic response, which causes EPS. (D) Thiothixene is an antipsychotic and neuroleptic drug that blocks dopamine neurotransmission at the CNS synapses, thereby causing EPS.