The nurse provides a client with a dose of the beta-selective adrenergic agonist isoproterenol. Which assessment finding indicates the medication is effective?
Constricted pupils
Warm, dry skin
Increased heart rate
Decreased urine output
The Correct Answer is C
A. Constricted pupils are not an expected response to isoproterenol, which generally causes dilation of the pupils due to sympathetic stimulation.
B. Warm, dry skin is not a direct indicator of the effectiveness of isoproterenol; it could result from various factors unrelated to the medication's action.
C. Increased heart rate indicates that isoproterenol, which is a beta-agonist, is effectively stimulating the beta-adrenergic receptors, leading to increased cardiac output and heart rate.
D. Decreased urine output is not a sign of effectiveness and could indicate adverse effects such as reduced renal perfusion.
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Correct Answer is C
Explanation
A. Chest pain and pale skin are not typical adverse effects associated with diltiazem use.
B. Shortness of breath and wheezing may occur due to other conditions or medications but are not common adverse effects of diltiazem.
C. Calcium channel blockers like diltiazem can cause peripheral edema due to vasodilation and bradycardia as a result of their action on the heart rate. Monitoring for these effects is essential in patients taking diltiazem.
D. Tachycardia is not an expected adverse effect of diltiazem; in fact, it is used to manage conditions where tachycardia may be present. Anxiety is also not a direct adverse effect of this medication.
Correct Answer is A
Explanation
A. Take the drug on an empty stomach is correct because tetracycline should be taken without food for optimal absorption, ideally 1 hour before or 2 hours after meals.
B. Take the drug along with a meal is incorrect as it can reduce the absorption of tetracycline.
C. Take the drug along with milk or fruit juice is incorrect because calcium and magnesium can bind to tetracycline, decreasing its effectiveness.
D. Take the drug immediately after meals is also incorrect as food can hinder absorption, making this timing ineffective for treatment.