What is the main hemodynamic parameter that measures preload?
Systolic Blood Pressure.
Mean Arterial Blood Pressure.
Central Venous Pressure (CVP).
Systemic Vascular Resistance.
The Correct Answer is C
Choice A reason: Systolic Blood Pressure is not a direct measure of preload; it indicates the pressure in the arteries during the contraction of the heart muscles.
Choice B reason: Mean Arterial Blood Pressure is an average blood pressure in an individual during a single cardiac cycle, but it does not specifically measure preload.
Choice C reason: Central Venous Pressure (CVP) is a direct measure of the blood volume returning to the heart and the ability of the heart to pump the blood into the arterial system, making it a key indicator of preload.
Choice D reason: Systemic Vascular Resistance refers to the resistance to blood flow offered by all of the systemic vasculature, excluding the pulmonary vasculature, and is not a measure of preload.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Lactated Ringer's solution does not provide the necessary glucose and may not be compatible with TPN.
Choice B reason: 0.45% sodium chloride (0.45% NaCl) is a hypotonic solution and does not provide adequate calories for a patient on TPN.
Choice C reason: 10% dextrose in water (D10W) is the appropriate choice as it provides a source of calories and prevents hypoglycemia until the next TPN bag is available.
Choice D reason: 5% dextrose in lactated Ringer's solution (D5LR) provides less dextrose than D10W and may not prevent hypoglycemia as effectively.
Correct Answer is D
Explanation
Choice A reason: Lethargy implies a state of sluggishness, drowsiness, or fatigue, not the inability to respond to stimuli.
Choice B reason: Stupor refers to a state of near-unconsciousness or insensibility, but the patient may respond to vigorous stimulation.
Choice C reason: Obtundation describes a state of consciousness characterized by a reduced alertness and a slow response to stimuli, but not complete unresponsiveness.
Choice D reason: Comatose is the correct term for a state of deep unconsciousness in which a patient cannot be aroused, fitting the description of the patient's condition.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.