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 A
Explanation
Choice A reason: Hyperkalemia is a common electrolyte imbalance in prerenal AKI due to decreased kidney function and the inability to excrete potassium.
Choice B reason: Hypernatremia is not typically expected in prerenal AKI unless there is an associated condition causing increased sodium retention.
Choice C reason: Hypercalcemia is not commonly associated with prerenal AKI.
Choice D reason: Hypophosphatemia is less likely in prerenal AKI; hyperphosphatemia is more common due to decreased filtration of phosphate.
Correct Answer is B
Explanation
Choice A reason: An embolic stroke is caused by an embolus traveling to the brain and blocking a blood vessel. The symptoms described do not specifically indicate an embolic stroke.
Choice B reason: A hemorrhagic stroke, which is bleeding within the brain, often presents with a sudden, severe headache, vomiting, and a change in consciousness, aligning with the symptoms described.
Choice C reason: A thrombotic stroke is caused by a thrombus forming in a blood vessel in the brain. While it can cause similar symptoms, the sudden severe headache is more characteristic of a hemorrhagic stroke.
Choice D reason: A transient ischemic attack (TIA) is a temporary blockage of blood flow to the brain. The symptoms usually resolve within minutes to hours and do not typically include a severe headache or vomiting.
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