Which factors may contribute to hypertension? (Select All that Apply.)

Decreased stimulation of the sympathetic nervous system (SNS).

Decreased elasticity of blood vessels.

Increased peripheral vascular resistance (PVR).

Decreased fluid volume.

Increased blood viscosity.

Answer and Explanation

Correct Answer : B,C,E

(A) Decreased stimulation of the sympathetic nervous system (SNS): The sympathetic nervous system (SNS) plays a key role in regulating blood pressure. When the SNS is stimulated, it causes vasoconstriction, or narrowing of the blood vessels, which increases blood pressure. Therefore, decreased stimulation of the SNS would typically lead to vasodilation, or widening of the blood vessels, which would lower blood pressure, not increase it.

(B) Decreased elasticity of blood vessels: As people age, their blood vessels can lose elasticity, which can lead to hypertension. When blood vessels are elastic, they can easily expand and contract with each heartbeat, maintaining a healthy blood pressure. But when they become stiff or rigid, they can’t expand as easily, causing the pressure inside to increase.

(c) Increased peripheral vascular resistance (PVR): Peripheral vascular resistance is the resistance that blood must overcome to flow through the blood vessels. The more resistance, the harder the heart has to work to pump blood through the body, which can lead to increased blood pressure. Factors that can increase PVR include vasoconstriction, or narrowing of the blood vessels, and increased blood viscosity, or thickness.

(D) Decreased fluid volume: Decreased fluid volume, or hypovolemia, would typically lead to a decrease in blood pressure, not an increase. This is because blood pressure is directly related to the volume of blood in the blood vessels. When there’s less blood, the pressure inside the blood vessels is usually lower.

(E) Increased blood viscosity: Blood viscosity refers to the thickness of the blood. When blood is thicker, it’s harder for it to flow through the blood vessels, which increases the resistance to blood flow, leading to increased blood pressure.

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Correct Answer is B

Explanation

(A) Re-collection of data: Re-collection of data is not the next step after planning. It might be done as part of the evaluation step or if there are significant changes in the client’s condition.

(B) Implementation: This is the most appropriate answer. After the planning step of the nursing process, the nurse moves on to the implementation step. This is where the nurse executes the interventions that were identified during the planning step.

(C) Data Collection: Data collection is typically the first step in the nursing process, where the nurse gathers information about the client’s health status. It is not the next step after planning.

(D) Evaluation: Evaluation is the final step of the nursing process. It involves assessing the client’s response to the nursing interventions and determining whether the client’s goals have been met. It is not the next step after planning.

A. The ST segment is elevated above the isoelectric line. B. The PR intervals are 0.15 second, C. The QT interval is equal to the R to R interval. D. The QRS intervals are 0.08 second

Correct Answer is A

Explanation

A. The ST segment is elevated above the isoelectric line: This is correct. ST-segment elevation is a key ECG finding in acute myocardial infarction. It indicates that a portion of the heart muscle is not receiving enough blood (ischemia), which can lead to tissue damage or death (infarction).

B. The PR intervals are 0.15 second: While the PR interval is an important part of the ECG, a PR interval of 0.15 second is within the normal range and does not indicate an acute myocardial infarction.

C. The QT interval is equal to the R to R interval: The QT interval represents the time from the start of the Q wave to the end of the T wave, encompassing ventricular depolarization and repolarization. While prolonged or shortened QT intervals can be associated with certain cardiac conditions, they are not specific indicators of an acute myocardial infarction.

D. The QRS intervals are 0.08 second: The QRS interval represents ventricular depolarization1. A QRS interval of 0.08 second is within the normal range and does not indicate an acute myocardial infarction.

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Which factors may contribute to hypertension? (Select All that Apply.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse has completed the planning step of the nursing process for a client who has an acid-base imbalance. Which of the following steps should the nurse take next?

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Explanation

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Correct Answer is A

Explanation

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