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 B
Explanation
Choice A reason : Maintenance chemotherapy is not typically used to maintain remission in Hodgkin's lymphoma after successful treatment.
Choice B reason : Follow-up appointments are crucial for monitoring any signs of recurrence or secondary malignancies, as well as managing long-term effects of treatment.
Choice C reason : The potential impact of chemotherapy on fertility is an important topic, especially for younger patients, but may not be as relevant for a 55-year-old woman.
Choice D reason : Addressing symptoms like pruritus, which can persist after treatment, is important for patient comfort and quality of life.
Correct Answer is A
Explanation
Choice A reason : A renal biopsy is an invasive procedure that can directly assess the extent of glomerular damage and is considered the gold standard for diagnosing the cause of abnormal GFR.
Choice B reason : Routine urinalysis can detect abnormalities in the urine but cannot quantify GFR or directly assess glomerular damage.
Choice C reason : A renal scan can evaluate renal perfusion and function but is less specific for glomerular damage compared to a biopsy.
Choice D reason : Creatinine clearance can estimate GFR but does not provide information on the specific cause of glomerular damage.
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