Explanation/Reference:
Explanation:
(A) This time is incorrect because regular insulin would peak after the teenager has eaten breakfast. (B) This time is incorrect because it is after lunch when the NPH peaks. (C) Regular insulin peaks in 2-3 hours and has a duration of 4-6 hours. NPH insulin's onset is 4-6 hours and peaks in 8-16 hours. Blood sugar would peak after meals and be lowest before meals and during the night. (D) This time is incorrect because it is before the NPH and after the regular insulin peak times.

Explanation
(A) Before petrolatum gauze is removed, it should be soaked with warm water to prevent trauma to adherent tissues. (B) A yellow exudate often forms normally over the surgical site. Only if it becomes foul-smelling and purulent would it need to be reported. (C) Alcohol should never be used on the site; this would be extremely painful to the infant. (D) Special care and observance should continue until the site is completely covered with clean, pink granulation tissue, which could take 7-10 days.

(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.

Explanation
(A) Povidone-iodine is very irritating to skin and should not be routinely used. (B) Sutures should not be removed by the client. (C) Confusion, nausea, vomiting, and behavioral changes may indicate increasing intracranial pressure as a result of intracerebral bleeding. (D) Use of a narcotic opiate such as meperidine is not recommended in clients with a possible head injury because it may produce sedation, pupil changes, euphoria, and respiratory depression, which may mask the signs of increasing intracranial pressure.

Explanation
(A) Although influenza is common, the elderly are more at risk because of decreased effectiveness of their immune system, not because the incidence is increasing. (B) Older clients have the same degree of illness when stricken as other populations. (C) As people age, their immune system becomes less effective, increasing their risk for influenza. (D) Older clients have no more exposure to the causative agents than do school-age children, for example.