the client has a myocardial infarction and is going into shock what might be a medication to give to counteract shock in cases of myocardial infarctio
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ATI RN

Cardiovascular System Exam

1. In cases of myocardial infarction leading to shock, which medication is appropriate to counteract shock?

Correct answer: B

Rationale: In cases of myocardial infarction leading to shock, dopamine is the drug of choice. Dopamine helps increase blood pressure and improve blood flow to vital organs, making it beneficial in managing shock. Atropine is mainly used for symptomatic bradycardia, not for shock. Digoxin is a cardiac glycoside used in heart failure and atrial fibrillation, not for managing shock. Adenosine is typically used for diagnosing and treating supraventricular tachycardias, not for shock associated with myocardial infarction.

2. The client on spironolactone (Aldactone) should avoid which type of food?

Correct answer: A

Rationale: The correct answer is A: Foods high in potassium. Spironolactone is a potassium-sparing diuretic, meaning it helps the body retain potassium and excrete sodium. Therefore, clients on spironolactone should avoid foods high in potassium to prevent hyperkalemia, which is an elevated level of potassium in the blood. Choices B, C, and D are incorrect because spironolactone specifically affects potassium levels, not sodium, calcium, or chloride.

3. What is a condition where the lung's air sacs (alveoli) are damaged and enlarged, leading to breathlessness?

Correct answer: A

Rationale: Emphysema is the correct answer. It is a condition where the air sacs in the lungs are damaged and enlarged, leading to breathlessness. Chronic bronchitis is characterized by inflammation of the bronchial tubes, not the alveoli. Asthma involves airway inflammation and constriction, not alveolar damage. Pulmonary fibrosis is a condition where lung tissue becomes thickened and scarred, different from the alveolar damage seen in emphysema.

4. What is the amount of tension the ventricle must develop during contraction to eject blood from the left ventricle into the aorta?

Correct answer: A

Rationale: Afterload is the correct answer because it refers to the pressure or tension that the ventricle must overcome during systole to eject blood into the aorta. Preload, on the other hand, is the degree of stretch of the ventricular muscle at the end of diastole before it contracts. Automaticity is the ability of the heart to generate electrical impulses independently, and ejection fraction is the percentage of blood pumped out of the ventricle with each heartbeat. Therefore, in the context of the question, afterload best describes the amount of tension the ventricle must develop to eject blood into the aorta.

5. What is a condition where the heart muscle becomes thickened without an obvious cause, leading to a reduction in the heart's ability to pump blood?

Correct answer: A

Rationale: Hypertrophic cardiomyopathy is the correct answer. It is a condition characterized by the abnormal thickening of the heart muscle without an obvious cause, which impairs the heart's ability to effectively pump blood. Dilated cardiomyopathy (choice B) involves the enlargement and weakening of the heart chambers, not thickening. Restrictive cardiomyopathy (choice C) refers to the stiffening of the heart muscle, limiting its ability to fill properly. Myocarditis (choice D) is inflammation of the heart muscle usually caused by a viral infection, not thickening.

Similar Questions

Which heart chamber receives oxygenated blood from the four pulmonary veins and serves as a reservoir during ventricular systole?
What is the term for the amount of blood ejected by the left ventricle into the aorta per beat, determined by preload, contractility, and afterload?
Which heart chamber ejects blood into the systemic arterial circulation via the aorta?
When administering enoxaparin (Lovenox) to a client for DVT prophylaxis, what is the most important lab value to monitor?
Which procedure is used to restore a normal heart rhythm in patients with arrhythmias, typically using electrical shocks?

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