When a patient is taking an adrenergic agonist drug, the nurse expects to observe which effect?

Constricted pupils

Increased heart rate

Bronchial constriction

Increased GI peristalsis

Answer and Explanation

The Correct Answer is B

A. Constricted pupils: Adrenergic agonist drugs typically cause pupil dilation (mydriasis), not constriction.
B. Increased heart rate: Adrenergic agonists stimulate the sympathetic nervous system, leading to increased heart rate (positive chronotropic effect) and increased cardiac contractility (positive
inotropic effect).

C. Bronchial constriction: Adrenergic agonists typically cause bronchodilation, not constriction.

D. Increased GI peristalsis: Adrenergic agonists usually inhibit GI motility, leading to decreased GI peristalsis and potentially constipation

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Free Nursing Study Resources

Correct Answer is B

Explanation

A. A lithium level of 0.9 mEq/L falls within the therapeutic range for lithium, so it is not too low.

B. A lithium level of 0.9 mEq/L is within the therapeutic range for lithium maintenance therapy, which typically ranges from 0.6 to 1.2 mEq/L. Therefore, it is considered therapeutic.
C. Lithium is commonly monitored with blood levels to ensure therapeutic efficacy and to prevent toxicity.
D. A lithium level of 0.9 mEq/L is not too high; it is within the therapeutic range.

A. These are adverse effects that usually subside after a few weeks. B. The drug must be stopped immediately because of possible adverse effects. C. This drug causes deprivation of REM sleep and may cause the inability to deal with normal stress. D. This drug causes the rapid eye movement (REM) sleep period to increase, resulting in nightmares and restlessness.

Correct Answer is C

Explanation

A. These are adverse effects that usually subside after a few weeks: While some adverse effects of phenobarbital may diminish over time, the symptoms described by the patient are more likely related to its impact on REM sleep.
B. The drug must be stopped immediately because of possible adverse effects: Stopping phenobarbital abruptly can lead to withdrawal symptoms and potential rebound seizures; discontinuation should be done gradually under medical supervision.
C. This drug causes deprivation of REM sleep and may cause the inability to deal with normal stress: Phenobarbital is known to disrupt REM sleep, leading to emotional lability, irritability, and difficulty coping with stress.
D. This drug causes the rapid eye movement (REM) sleep period to increase, resulting in nightmares and restlessness: Phenobarbital actually decreases REM sleep, which can lead to disturbances in sleep patterns and mood changes.

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When a patient is taking an adrenergic agonist drug, the nurse expects to observe which effect?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient has been taking lithium for 1 year, and the most recent lithium level is 0.9 mEq/L. Which statement about the laboratory result is correct?

Correct Answer is B

Explanation

A patient has been taking phenobarbital for 2 weeks as part of his therapy for epilepsy. He tells the nurse that he feels tense and that the least little thing bothers him now. Which is the correct explanation for this problem?

Correct Answer is C

Explanation

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