The nurse is assisting in a seminar for newly licensed nurses, teaching about characteristics of the heart. The nurse shows understanding of the heart when she states that the innermost layer of the heart is called the.
chambers.
pericardium.
epicardium.
endocardium.
The Correct Answer is D
Choice A rationale:
Chambers refer to the four compartments of the heart, not a layer of the heart.
Choice B rationale:
Pericardium is the sac that surrounds the heart, not a layer of the heart itself.
Choice C rationale:
Epicardium is the outermost layer of the heart, not the innermost.
Choice D rationale:
Endocardium is indeed the innermost layer of the heart, lining the inner surfaces of the heart chambers and valves.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D","E"]
Explanation
The correct answers are B, D, and E.
Choice A Reason: The provider’s name is not an acceptable client identifier for medication administration. The provider’s name is associated with the person who prescribes or orders the medication, not the client who is to receive it. It does not reliably identify the individual for whom the service or treatment is intended.
Choice B Reason: The client’s full name is a primary and acceptable identifier. It is unique to the individual and is used to match the service or treatment to that individual. It is one of the most common identifiers used in healthcare settings to ensure that the correct patient receives the correct medication.
Choice C Reason: The facility room number is not an acceptable identifier. Room numbers can change if patients are moved, and they are not unique to an individual. Therefore, they do not reliably identify the person for whom the service or treatment is intended.
Choice D Reason: An identification number the facility assigns, such as a medical record number, is an acceptable identifier. It is unique to the client and is used across healthcare settings to track patient information, including medication administration.
Choice E Reason: The client’s telephone number can be considered an acceptable identifier, especially in settings where other identifiers might not be available. It is unique to an individual and can be used to verify the client’s identity.
Correct Answer is A
Explanation
Choice A rationale:
The right ventricle pumps deoxygenated blood to the lungs via the pulmonary artery. This is the only artery in the body that carries deoxygenated blood.
Choice B rationale:
The left atrium receives oxygenated blood from the lungs via the pulmonary veins, not the right ventricle.
Choice C rationale:
Pulmonary veins carry oxygenated blood from the lungs to the left atrium, not from the right ventricle to the lungs.
Choice D rationale:
The left ventricle pumps oxygenated blood to the rest of the body through the aorta, not to the lungs.
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