Nursing Elites

1. What is the ability of cardiac cells to respond to an impulse by transmitting the impulse along cell membranes?

• A. Contractility
• B. Automaticity
• C. Conductivity
• D. Rhythmicity

Correct answer: C

Rationale: The correct answer is C, Conductivity. Conductivity refers to the ability of cardiac cells to transmit impulses along cell membranes. Contractility (Choice A) is the ability of cardiac cells to contract in response to an electrical stimulus, not transmit impulses. Automaticity (Choice B) is the ability of cardiac cells to spontaneously generate electrical impulses. Rhythmicity (Choice D) refers to the regular generation of electrical impulses by the heart's pacemaker cells, not the transmission of impulses along cell membranes.

2. What is a chronic condition where the heart is unable to pump blood efficiently, leading to fluid buildup in the lungs and other parts of the body?

• A. Heart failure
• B. Cardiomyopathy
• C. Pericarditis
• D. Aortic stenosis

Correct answer: A

Rationale: Heart failure is the correct answer. It is a chronic condition characterized by the heart's inability to pump blood efficiently, resulting in symptoms like fluid buildup in the lungs and other parts of the body, shortness of breath, fatigue, and fluid retention. Cardiomyopathy (choice B) refers to diseases of the heart muscle, but it is a broader category that includes various conditions affecting the heart muscle. Pericarditis (choice C) is the inflammation of the pericardium, the sac surrounding the heart, and aortic stenosis (choice D) is a condition where the aortic valve narrows, restricting blood flow from the heart.

3. The client is given an alpha agonist. What might it be used for?

• A. For hemostasis
• B. To dilate the arteries
• C. To dilate the veins
• D. To decrease afterload

Correct answer: A

Rationale: Alpha agonists are used for hemostasis to help control bleeding by constricting blood vessels, leading to decreased blood flow to the area. Choices B, C, and D are incorrect as alpha agonists do not typically dilate arteries, dilate veins, or decrease afterload.

4. Which condition is characterized by chest pain due to reduced blood flow to the heart muscle?

• A. Angina
• B. Myocardial infarction
• C. Pericarditis
• D. Arrhythmia

Correct answer: A

Rationale: The correct answer is A, Angina. Angina is chest pain or discomfort caused by reduced blood flow to the heart muscle, often due to coronary artery disease. Choice B, Myocardial infarction, involves the death of heart muscle tissue due to a lack of blood supply, presenting with symptoms similar to angina but more severe. Pericarditis (Choice C) is inflammation of the pericardium, the sac surrounding the heart, which may cause chest pain but is not primarily due to reduced blood flow. Arrhythmia (Choice D) refers to abnormal heart rhythms but is not directly related to chest pain due to reduced blood flow.

5. What is a condition where blood clots form in the deep veins, usually in the legs, and can travel to the lungs, causing serious complications?

• A. Deep vein thrombosis (DVT)
• B. Pulmonary embolism
• C. Varicose veins
• D. Peripheral artery disease

Correct answer: A

Rationale: The correct answer is A, Deep vein thrombosis (DVT). Deep vein thrombosis occurs when blood clots form in the deep veins, usually in the legs, and these clots can potentially travel to the lungs, leading to a pulmonary embolism. Pulmonary embolism (choice B) is a serious complication that can result from untreated DVT. Varicose veins (choice C) and peripheral artery disease (choice D) are not directly related to the formation of blood clots in deep veins that can lead to pulmonary embolism.

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