Which is(are) potential result(s) of end-organ damage from chronic hypertension? (Select all that apply.)
Cardiac disease
Renal insufficiency
Stroke
Familial hypercholesterolemia
Atrial fibrillation
Isolated systolic hypertension
Correct Answer : A,B,C,E
A. Chronic hypertension is a significant risk factor for the development of various cardiac diseases, including coronary artery disease, left ventricular hypertrophy, heart failure, and arrhythmias. The increased workload on the heart caused by hypertension can lead to myocardial remodeling, impaired cardiac function, and ultimately heart disease.
B. Chronic hypertension can cause damage to the kidneys over time, leading to renal insufficiency or chronic kidney disease. The elevated blood pressure damages the delicate blood vessels in the kidneys, impairing their ability to filter waste products and regulate fluid and electrolyte balance. Persistent hypertension can ultimately lead to kidney dysfunction and renal failure.
C. Hypertension is a major risk factor for the development of stroke, particularly ischemic stroke (caused by a blockage in a blood vessel supplying the brain) and hemorrhagic stroke (caused by bleeding into the brain). Chronic hypertension can damage blood vessels in the brain, leading to the formation of blood clots or weakening of vessel walls, increasing the risk of stroke.
E. Chronic hypertension is a significant risk factor for the development of atrial fibrillation, a type of irregular heart rhythm characterized by rapid and chaotic electrical activity in the upper chambers of the heart (atria). The structural changes in the heart caused by hypertension, such as left atrial enlargement and fibrosis, can predispose individuals to atrial fibrillation.
D. Familial hypercholesterolemia is a genetic disorder characterized by high levels of LDL cholesterol in the blood. While chronic hypertension itself does not directly cause familial hypercholesterolemia, hypertension and hypercholesterolemia are often comorbid conditions that contribute to cardiovascular risk. Both conditions can lead to atherosclerosis, increasing the risk of heart disease and stroke.
F. Isolated systolic hypertension refers to elevated systolic blood pressure with normal diastolic blood pressure. While isolated systolic hypertension itself is a manifestation of hypertension, it is not a direct result of end-organ damage. However, if left untreated, isolated systolic hypertension can lead to complications such as stroke, heart failure, and kidney disease, which are consequences of end-organ damage from chronic hypertension.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
C. Mean arterial pressure (MAP) reflects the average pressure in the arteries during one cardiac cycle and is an important indicator of tissue perfusion. A MAP of 56 mm Hg is below the normal range (typically >60 mm Hg) and may indicate inadequate tissue perfusion. While norepinephrine is commonly used to increase blood pressure and improve tissue perfusion in hypotensive patients, a MAP of 56 mm Hg suggests that the current infusion rate may not be sufficient to maintain adequate perfusion, and adjusting the infusion rate may be warranted.
A. Norepinephrine is a vasopressor medication primarily used to increase blood pressure in patients with hypotension or shock. A low pulmonary artery wedge pressure (PAWP) suggests decreased preload, which may indicate hypovolemia or inadequate fluid resuscitation. In this case, adjusting the norepinephrine infusion rate may not be necessary, but rather addressing the underlying cause of hypovolemia or inadequate preload.
B. Systemic vascular resistance (SVR) represents the resistance the heart must overcome to pump blood into the systemic circulation. An elevated SVR may suggest vasoconstriction, which could be a desired effect of norepinephrine infusion to increase blood pressure. Therefore, an elevated SVR may not necessarily indicate a need to adjust the norepinephrine infusion rate, as it may reflect the medication's intended action.
D. Norepinephrine primarily acts on alpha-adrenergic receptors to increase blood pressure by inducing vasoconstriction. While it may cause reflex bradycardia due to increased systemic vascular resistance, a heart rate of 58 beats/min may be within an acceptable range depending on the patient's clinical condition and baseline heart rate. Therefore, a slow heart rate alone may not necessarily indicate a need to adjust the norepinephrine infusion rate unless it is associated with signs of inadequate tissue perfusion or other concerning symptoms.
Correct Answer is C
Explanation
C. The first intervention should be to administer normal saline IV at 500 mL/hr to address the immediate concern of hypotension and inadequate tissue perfusion.
A. While fever control is important, especially in septic shock, administering acetaminophen should not be the first intervention in a patient with severe hypotension and shock. Addressing the low blood pressure and perfusion is a higher priority.
B. Hyperglycemia is common in critically ill patients, including those with septic shock. However, in this scenario, the patient's severely low blood pressure and signs of shock take precedence over managing hyperglycemia. Insulin therapy can be initiated later once the patient's hemodynamic status is stabilized.
D. Norepinephrine is a vasopressor medication commonly used in septic shock to increase blood pressure and improve perfusion to vital organs. It helps counteract the vasodilation and hypotension characteristic of septic shock.
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