What is the main hemodynamic parameter that measures preload?

Systolic Blood Pressure.

Mean Arterial Blood Pressure.

Central Venous Pressure (CVP).

Systemic Vascular Resistance.

Answer and Explanation

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.

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Correct Answer is D

Explanation

Choice A reason: This description is too clinical and not the simplest explanation.

Choice B reason: This statement is medically accurate but not the most simplistic description.

Choice C reason: Comparing Crohn's disease to a second-degree burn is not accurate as it does not only aﬀect the colon and rectum.

Choice D reason: Describing Crohn's disease as having the appearance of a patchwork quilt with some areas clear and some with sores provides a simple visual that is easy to understand without medical knowledge.

A. Recovery position, lateral with the upper leg ﬂexed and forward, and the upper hand across the chest with the back of the hand supporting the cheek. B. Prone position, to encourage maximum rest, thus decreasing respiratory and cardiac rates. C. Sitting up position (45 degrees or greater) to facilitate breathing and decrease venous return. D. Trendelenburg position, to drain blood from leg veins into the heart, i.e., the organic ﬂuid bolus.

Correct Answer is C

Explanation

Choice A reason: The recovery position is not typically recommended for patients with acute pulmonary edema as it does not facilitate optimal breathing.

Choice B reason: The prone position is not generally recommended for acute pulmonary edema as it may not aid in improving oxygenation or breathing.

Choice C reason: The sitting up position, especially at an angle of 45 degrees or greater, is recommended for patients with acute pulmonary edema as it helps to facilitate breathing and decrease venous return to the heart.

Choice D reason: The Trendelenburg position is not recommended for acute pulmonary edema as it can increase the pressure in the chest and worsen breathing difficulties.

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What is the main hemodynamic parameter that measures preload?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is providing teaching to a client who has a new diagnosis of Crohn's disease. Which of the following statements by the nurse provides the most simplistic and non-medical description of the disorder?

Correct Answer is D

Explanation

A recommended position for a patient in acute pulmonary edema is:

Correct Answer is C

Explanation

The normal PR interval is:

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