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When caring for a patient who has been admitted for his heart failure, the nurse observes that the patient is experiencing bradycardia. Which drug should be administered to patients who develop bradycardia?

A.

Atropine

B.

Cholestyramine

C.

Inamrinone

D.

Milrinone

Answer and Explanation

The Correct Answer is A

A. Atropine is an anticholinergic medication that increases heart rate by blocking vagal effects on the heart, making it the first-line treatment for symptomatic bradycardia.  

 

B. Cholestyramine is a bile acid sequestrant used to lower cholesterol levels and does not have any effects on heart rate.  

 

C. Inamrinone is a phosphodiesterase inhibitor used in heart failure for inotropic support but is not specifically indicated for bradycardia management.  

 

D. Milrinone is also a phosphodiesterase inhibitor used for heart failure but does not address bradycardia directly.


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View Related questions

Correct Answer is D

Explanation

A. While MAOIs may have some regulatory considerations, they are not classified under a scheduled drug classification like controlled substances.

B. MAOIs are effective in treating depression and anxiety disorders, which is not the reason for their limited use.

C. Although MAOIs can have some side effects, they are more notably associated with dietary and drug interactions rather than causing GI bleeding or esophageal varices.

D. MAOIs can cause dangerous interactions with foods that contain tyramine (like aged cheeses and fermented products) and certain medications, leading to hypertensive crises, making their use cautious and limiting in clinical practice.

Correct Answer is B

Explanation

A. Milk does not enhance the absorption of tetracycline; rather, it contains calcium, which can bind to the antibiotic and reduce its absorption.

B. Avoiding milk and dairy products while taking tetracycline is essential as they reduce the medication's effectiveness by forming insoluble complexes with the drug.

C. Taking milk with tetracycline is not safe due to the risk of decreased absorption; simply increasing water intake does not negate this interaction.

D. While spacing the intake of milk and tetracycline might seem beneficial, it is best to avoid dairy entirely during the treatment to ensure maximum efficacy of the medication.

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