A nurse is caring for a client who has a prescription for metoprolol. The nurse measures the client's vital signs and notes that the client's apical heart rate is 49/min. The nurse should prepare to administer which of the following medications?
Diltiazem
Atropine
Digoxin
Carvedilol
The Correct Answer is B
A. Diltiazem: Diltiazem is a calcium channel blocker used to treat high blood pressure and heart rhythm disorders. However, it can further lower the heart rate, which is not desirable in this case as the client’s heart rate is already low.
B. Atropine: This is correct. Atropine is often used to treat bradycardia (low heart rate). It works by blocking the action of the vagus nerve on the heart, which increases the heart rate.
C. Digoxin: Digoxin is used to treat heart failure and atrial fibrillation1. However, one of its side effects is that it can lower the heart rate, so it would not be appropriate to give to a client who already has a low heart rate.
D. Carvedilol: Carvedilol is a beta-blocker used to treat high blood pressure and heart failure1. Like other beta-blockers, it can lower the heart rate, so it would not be appropriate to give to a client who already has a low heart rate.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
(A) Respiratory acidosis: Respiratory acidosis is characterized by a low pH (<7.35) and a high PaCO2 (>45 mm Hg). In this case, the client’s pH is high and PaCO2 is normal, which rules out respiratory acidosis.
(B) Respiratory alkalosis: Respiratory alkalosis is characterized by a high pH (>7.45) and a low PaCO2 (<35 mm Hg). Although the client’s pH is high, the PaCO2 is normal, which rules out respiratory alkalosis.
(C) Metabolic acidosis: Metabolic acidosis is characterized by a low pH (<7.35) and a low bicarbonate level (<22 mEq/L). The client’s pH and bicarbonate levels are both high, which rules out metabolic acidosis.
(D) Metabolic alkalosis: Metabolic alkalosis is characterized by a high pH (>7.45) and a high bicarbonate level (>26 mEq/L). The client’s pH is 7.6 and bicarbonate level is 32 mEq/L, both of which are higher than normal. This indicates metabolic alkalosis. Therefore, the nurse should identify that the client is experiencing metabolic alkalosis.
Correct Answer is B
Explanation
A. "This medication will help maintain a normal heart rhythm":
Warfarin is not typically used to maintain a normal heart rhythm in atrial fibrillation. It is primarily used for stroke prevention by anticoagulation.
B. "Warfarin helps prevent strokes in clients who have atrial fibrillation":
This statement is accurate. Warfarin is an anticoagulant medication that is commonly prescribed for clients with atrial fibrillation to reduce the risk of stroke by preventing blood clots from forming in the heart and traveling to the brain.
C. "Warfarin dissolves clots in the bloodstream":
Warfarin does not directly dissolve clots in the bloodstream. It works by inhibiting the production of clotting factors in the liver, thereby preventing the formation of new clots and reducing the risk of clot-related complications such as stroke.
D. "This medication slows the response of the ventricles to the fast atrial impulses":
This statement refers more to medications used for rate control in atrial fibrillation rather than warfarin. Warfarin does not directly affect the heart rate or the response of the ventricles to atrial impulses.
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