this is the ability of cardiac cells to respond to a stimulus by initiating a cardiac impulse this is the ability of cardiac cells to respond to a stimulus by initiating a cardiac impulse
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Nursing Elites

ATI RN

Physical Exam Cardiovascular System

1. What is the term for the ability of cardiac cells to respond to a stimulus by initiating a cardiac impulse?

Correct answer: A

Rationale: The correct answer is A, Excitability. Excitability is the ability of cardiac cells to respond to a stimulus by initiating a cardiac impulse. Choice B, Contractility, refers to the ability of cardiac muscle to shorten forcibly. Choice C, Rhythmicity, refers to the cardiac muscle's ability to contract rhythmically. Choice D, Conductivity, refers to the ability of the heart's cells to conduct electrical impulses.

2. What is the priority intervention for a patient with fluid overload?

Correct answer: A

Rationale: The correct answer is to administer diuretics. Diuretics help reduce excess fluid in cases of fluid overload, making it the priority intervention. Administering additional IV fluids (choice B) would exacerbate the problem by adding more fluid. Providing oral fluids (choice C) is not the priority as the excess fluid needs to be removed first. Chest physiotherapy (choice D) is not the primary intervention for fluid overload.

3. What are the expected symptoms in a patient with compartment syndrome?

Correct answer: A

Rationale: The correct answer is A: Unrelieved pain, pallor, and pulselessness. These symptoms are classic signs of compartment syndrome, which is a serious condition characterized by reduced circulation in a closed muscle compartment. The pain is typically severe and disproportionate to the injury, and if left untreated, it can lead to tissue damage and loss of function. Choices B, C, and D are incorrect because they do not represent the hallmark symptoms of compartment syndrome. Localized swelling and redness may be present but are not specific to this condition. Fever and swelling are more indicative of inflammation or infection, while weakness and fatigue are nonspecific and do not typically occur in isolation in compartment syndrome.

4. You are performing an admission assessment on an older adult patient newly admitted for end-stage liver disease. What principle should guide your assessment of the patients skin turgor?

Correct answer: Inelastic skin turgor is a normal part of aging

Rationale:

5. Children raised in orphanages tend to have ________.

Correct answer: B

Rationale: The correct answer is B: 'less cortical gray matter than those raised by their parents.' Studies have shown that children raised in orphanages tend to have less cortical gray matter compared to those raised by their parents. This is due to the lack of individualized care, attention, and stimulation that can negatively impact brain development. Choices A, C, and D are incorrect because there is no direct correlation between cortical gray matter and the number of friendships when comparing children raised in orphanages and those raised by their parents.

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