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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Acute respiratory acidosis occurs when there is inadequate excretion of carbon dioxide due to respiratory dysfunction, leading to an increase in carbon dioxide levels (hypercapnia) and subsequent acidosis (decrease in pH).
Manifestations of acute respiratory acidosis include:
A. Circumoral numbness and tingling - This is associated with respiratory alkalosis, not acidosis. B. Muscle flaccidity - This is more commonly seen in hyperkalemia or conditions affecting neuromuscular transmission. C. Decreased level of consciousness - This is a key manifestation of acute respiratory acidosis due to the effects of hypercapnia on the central nervous system. D. Cool, clammy skin - This is not typically associated with acute respiratory acidosis; instead, it might be seen in shock or hypoperfusion states.
Therefore, the nurse should expect to find a decreased level of consciousness in a client experiencing acute respiratory acidosis.
Correct Answer is D
Explanation
A. Helping the client into the shower: This task can be safely delegated to an assistive personnel (AP). The AP can help the client with activities of daily living such as showering, as long as the client is stable and does not require close monitoring.
B. Ambulating the client in the hallway: This task can also be delegated to an AP. Assisting with ambulation is within the scope of practice for an AP, provided the client is stable and there are no specific concerns that require a nurse’s assessment.
C. Measuring vital signs: While measuring vital signs is a critical task, it can be delegated to an AP. The AP can be trained to accurately measure and report vital signs. However, the nurse should review and interpret the results.
D. Removing the sternal dressing: This is the correct answer. Removing a sternal dressing after cardiac surgery is a complex task that requires a nurse’s expertise2. The nurse needs to assess the surgical site for signs of infection or complications, which is beyond the scope of practice for an AP. Therefore, this task should not be delegated and should be performed by the nurse herself
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.