The nurse is assessing a patient who is receiving metoprolol 2 days after an acute coronary syndrome (ACS), Which physiological action of metoprolol supports the desired or therapeutic response?

Increases contractility.

Increases preload.

Decreases afterload.

Decreases diastolic filing time.

Answer and Explanation

The Correct Answer is C

A) Increases contractility: Metoprolol, a beta-blocker, actually decreases contractility. It reduces the force of contraction of the heart muscle, which can help reduce myocardial oxygen demand and improve outcomes after ACS. Increasing contractility would counteract the therapeutic goals of metoprolol in managing ACS.
B) Increases preload: Preload refers to the volume of blood in the ventricles at the end of diastole. Metoprolol does not increase preload; rather, it reduces myocardial workload and oxygen demand, which does not directly affect preload but rather the heart's performance overall.
C) Decreases afterload: Metoprolol reduces afterload indirectly by lowering blood pressure and decreasing heart rate, which helps reduce the workload on the heart. This reduction in afterload supports the therapeutic goals of metoprolol in managing ACS by decreasing the heart's work and improving cardiac efficiency.
D) Decreases diastolic filling time: Metoprolol slows the heart rate, which can lead to increased diastolic filling time, not a decrease. Increased filling time can be beneficial as it allows the heart more time to fill with blood between beats, thereby improving cardiac output.

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Correct Answer is A

Explanation

A. Mix the capsule granules with water: Lansoprazole capsules contain granules that are typically not intended to be crushed or chewed. The appropriate method for administering these granules via an NGT is to mix them with water to ensure they are delivered properly. This approach aligns with the medication’s guidelines for administration through a tube.
B. Request the pharmacist to provide tablets: While tablets might be a suitable alternative, it is not the immediate action required if the client already has capsules. The focus should be on appropriately administering the prescribed form.
C. Open the capsule to crush the granules: Crushing or opening capsules is generally not recommended unless specifically instructed by the manufacturer or pharmacist. This can alter the drug’s effectiveness and release properties.
D. Sprinkle the granules in applesauce: Lansoprazole granules are not meant to be mixed with food like applesauce. They should be mixed with water to ensure proper dissolution and administration.

A. Accommodation. B. Pupillary constriction. C. Refraction. D. Eye convergence.

Correct Answer is B

Explanation

A. Accommodation: Mydriatic eye drops cause dilation of the pupils, but they do not directly affect the eye's ability to accommodate or focus on near objects. Therefore, accommodation may still be functional, though it can be affected indirectly due to the dilated pupils.
B. Pupillary constriction: Mydriatic eye drops are designed to dilate the pupils, so they inhibit or prevent pupillary constriction. This is the primary purpose of these drops, so pupillary constriction will not occur during their therapeutic effect.
C. Refraction: Refraction refers to the bending of light as it passes through the eye to focus on the retina. This function is generally maintained even when mydriatic drops are used, though changes in pupil size can affect the amount of light entering the eye.
D. Eye convergence: Convergence involves the inward movement of both eyes toward each other to maintain single binocular vision when focusing on a close object. While mydriatic drops primarily affect pupil dilation, convergence can still occur, though it may be affected by the degree of dilation.

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The nurse is assessing a patient who is receiving metoprolol 2 days after an acute coronary syndrome (ACS), Which physiological action of metoprolol supports the desired or therapeutic response?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client who has dysphagia after a cerebral vascular accident (CVA) receives a new prescription for lansoprazole capsules via nasogastric tube (NGT). Which action should the nurse implement prior to administering the medication?

Correct Answer is A

Explanation

The nurse is assessing the eyes of a client who just received mydriatic eye drops. Which physiological function of the eye will not respond during the therapuetic period after administration of the eye drops?

Correct Answer is B

Explanation

The nurse is assessing a patient who is receiving metoprolol 2 days after an acute coronary syndrome (ACS), Which physiological action of metoprolol supports the desired or therapeutic response?

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