Afterload is most accurately described by which of the following?
Fluid volume status.
Atrial contraction (kick).
Resistance to blood flow.
Myocardial compliance.
The Correct Answer is C
Choice A reason: Fluid volume status affects preload, not afterload.
Choice B reason: Atrial contraction contributes to filling of the ventricles, not to afterload.
Choice C reason: Afterload is the resistance left ventricular must overcome to circulate blood, which is accurately described as resistance to blood flow.
Choice D reason: Myocardial compliance refers to the elasticity of the heart muscle, which affects how the heart fills, not the resistance it must overcome to eject blood.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Respiratory Acidosis is characterized by a low pH and a high PCO2, which is not the case here.
Choice B reason: Respiratory Alkalosis would involve a high pH and a low PCO2, which is not consistent with the patient's PCO2 level.
Choice C reason: Metabolic Alkalosis is indicated by a high pH and a high HCO3, which matches the patient's blood gas values.
Choice D reason: Metabolic Acidosis would show a low pH and a low HCO3, which is the opposite of this patient's presentation.
Correct Answer is A
Explanation
Choice A reason: Packed RBCs should be transfused as soon as possible once the nurse has prepared everything necessary for the transfusion.
Choice B reason: Waiting 2 hours after obtaining the blood is not necessary and could delay needed treatment.
Choice C reason: The client's mealtime should not delay the transfusion of blood, which is a time-sensitive medical treatment.
Choice D reason: While the client's readiness is important, it should not unduly delay the transfusion if the client is medically stable and the transfusion is necessary.
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