Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
Which agent is preferred for the initial treatment of heart failure?
A. Vasodilators
This is not the preferred agent for the initial treatment of heart failure. Vasodilators are a class of medications that lower the blood pressure by relaxing the blood vessels and reducing the resistance to blood flow. They can be used to treat hypertension, angina, and heart failure, but they are usually added to other medications, such as diuretics or beta blockers, to improve the symptoms and outcomes.
B. Diuretics
This is the preferred agent for the initial treatment of heart failure. Diuretics are a class of medications that increase the urine output and reduce the fluid retention in the body. They can be used to treat hypertension, edema, and heart failure, as they reduce the preload and afterload on the heart, and decrease the pulmonary congestion and peripheral edema.
C. Calcium channel blockers
This is not the preferred agent for the initial treatment of heart failure. Calcium channel blockers are a class of medications that lower the blood pressure and heart rate by blocking the calcium channels in the heart and blood vessels, which cause vasodilation and reduced cardiac contractility. They can be used to treat hypertension, angina, and arrhythmias, but they are not recommended for most patients with heart failure, as they may worsen the cardiac function and increase the mortality.
D. Direct renin inhibitors
This is not the preferred agent for the initial treatment of heart failure. Direct renin inhibitors are a class of medications that lower the blood pressure by inhibiting the enzyme renin, which initiates the renin-angiotensin-aldosterone system, a hormonal pathway that regulates the blood pressure and fluid balance. They can be used to treat hypertension, but they have not been proven to be effective or safe for patients with heart failure.
This question is an excerpt from Nurse Dive's nursing test bank - South Merit college Patho-pharmacology Proctored Exam. Take the full exam now
Full Explanation
Choice A reason: This is not the preferred agent for the initial treatment of heart failure. Vasodilators are a class of medications that lower the blood pressure by relaxing the blood vessels and reducing the resistance to blood flow. They can be used to treat hypertension, angina, and heart failure, but they are usually added to other medications, such as diuretics or beta blockers, to improve the symptoms and outcomes.
Choice B reason: This is the preferred agent for the initial treatment of heart failure. Diuretics are a class of medications that increase the urine output and reduce the fluid retention in the body. They can be used to treat hypertension, edema, and heart failure, as they reduce the preload and afterload on the heart, and decrease the pulmonary congestion and peripheral edema.
Choice C reason: This is not the preferred agent for the initial treatment of heart failure. Calcium channel blockers are a class of medications that lower the blood pressure and heart rate by blocking the calcium channels in the heart and blood vessels, which cause vasodilation and reduced cardiac contractility. They can be used to treat hypertension, angina, and arrhythmias, but they are not recommended for most patients with heart failure, as they may worsen the cardiac function and increase the mortality.
Choice D reason: This is not the preferred agent for the initial treatment of heart failure. Direct renin inhibitors are a class of medications that lower the blood pressure by inhibiting the enzyme renin, which initiates the renin-angiotensin-aldosterone system, a hormonal pathway that regulates the blood pressure and fluid balance. They can be used to treat hypertension, but they have not been proven to be effective or safe for patients with heart failure.
Similar Questions
What is albuterol (Proventil) used to treat?
A. Acute allergies
Albuterol is not used to treat acute allergies. It is a bronchodilator that relaxes the smooth muscles of the airways and improves airflow. Antihistamines are the drugs of choice for acute allergies.
B. Nasal congestion
Albuterol is not used to treat nasal congestion. It is a bronchodilator that acts on the lungs, not the nose. Decongestants are the drugs of choice for nasal congestion.
C. Dyspnea on exertion
Albuterol is not used to treat dyspnea on exertion. It is a bronchodilator that is used for acute or chronic respiratory conditions, such as asthma or chronic obstructive pulmonary disease (COPD). Dyspnea on exertion is a symptom of various cardiac or pulmonary disorders that require further evaluation and treatment.
D. Acute bronchospasm
Albuterol is used to treat acute bronchospasm. It is a bronchodilator that quickly relieves the symptoms of bronchoconstriction, such as wheezing, coughing, and shortness of breath. It is often prescribed as a rescue inhaler for patients with asthma or COPD.
Full Explanation
Choice A reason: Albuterol is not used to treat acute allergies. It is a bronchodilator that relaxes the smooth muscles of the airways and improves airflow. Antihistamines are the drugs of choice for acute allergies.
Choice B reason: Albuterol is not used to treat nasal congestion. It is a bronchodilator that acts on the lungs, not the nose. Decongestants are the drugs of choice for nasal congestion.
Choice C reason: Albuterol is not used to treat dyspnea on exertion. It is a bronchodilator that is used for acute or chronic respiratory conditions, such as asthma or chronic obstructive pulmonary disease (COPD). Dyspnea on exertion is a symptom of various cardiac or pulmonary disorders that require further evaluation and treatment.
Choice D reason: Albuterol is used to treat acute bronchospasm. It is a bronchodilator that quickly relieves the symptoms of bronchoconstriction, such as wheezing, coughing, and shortness of breath. It is often prescribed as a rescue inhaler for patients with asthma or COPD.
The nurse is explaining to a patient how ACE inhibitors affect blood pressure. Which statement accurately describes the action of these medications?
A. They lower heart rate.
ACE inhibitors do not lower heart rate. They lower blood pressure by blocking the conversion of angiotensin I to angiotensin II, which is a potent vasoconstrictor. Beta blockers are the drugs that lower heart rate and blood pressure.
B. They inhibit vasoconstriction.
ACE inhibitors inhibit vasoconstriction. This is the correct statement that describes the action of these medications. By blocking the angiotensin II formation, they prevent the narrowing of the blood vessels and reduce the resistance to blood flow.
C. They increase aldosterone secretion.
ACE inhibitors do not increase aldosterone secretion. They decrease it. Aldosterone is a hormone that causes the kidneys to retain sodium and water, which increases blood volume and pressure. By blocking the angiotensin II formation, ACE inhibitors reduce the stimulation of aldosterone secretion and promote sodium and water excretion.
D. They promote sodium retention.
ACE inhibitors do not promote sodium retention. They promote sodium excretion. As explained above, ACE inhibitors reduce the aldosterone secretion and prevent the kidneys from reabsorbing sodium and water. This lowers the blood volume and pressure.
Full Explanation
Choice A reason: ACE inhibitors do not lower heart rate. They lower blood pressure by blocking the conversion of angiotensin I to angiotensin II, which is a potent vasoconstrictor. Beta blockers are the drugs that lower heart rate and blood pressure.
Choice B reason: ACE inhibitors inhibit vasoconstriction. This is the correct statement that describes the action of these medications. By blocking the angiotensin II formation, they prevent the narrowing of the blood vessels and reduce the resistance to blood flow.
Choice C reason: ACE inhibitors do not increase aldosterone secretion. They decrease it. Aldosterone is a hormone that causes the kidneys to retain sodium and water, which increases blood volume and pressure. By blocking the angiotensin II formation, ACE inhibitors reduce the stimulation of aldosterone secretion and promote sodium and water excretion.
Choice D reason: ACE inhibitors do not promote sodium retention. They promote sodium excretion. As explained above, ACE inhibitors reduce the aldosterone secretion and prevent the kidneys from reabsorbing sodium and water. This lowers the blood volume and pressure.
A patient with type 1 diabetes was prescribed a glucocorticoid for COPD. Which will the nurse expect in this patient?
A. No change in blood sugar
Glucocorticoids can cause an increase in blood sugar by stimulating gluconeogenesis and inhibiting insulin action. Therefore, a patient with type 1 diabetes who is taking glucocorticoids will not have no change in blood sugar, but rather a rise in blood sugar.
B. A decrease in the blood pressure
Glucocorticoids can cause an increase in blood pressure by promoting sodium and water retention and increasing vascular reactivity. Therefore, a patient with type 1 diabetes who is taking glucocorticoids will not have a decrease in the blood pressure, but rather a possible increase in the blood pressure.
C. An increase in the blood sugar
Glucocorticoids can cause an increase in blood sugar by stimulating gluconeogenesis and inhibiting insulin action. Therefore, a patient with type 1 diabetes who is taking glucocorticoids will have an increase in blood sugar. This is the correct statement that describes the expected effect of glucocorticoids in this patient.
D. An increase in the need for carbohydrates
Glucocorticoids can cause an increase in blood sugar by stimulating gluconeogenesis and inhibiting insulin action. Therefore, a patient with type 1 diabetes who is taking glucocorticoids will not have an increase in the need for carbohydrates, but rather a need for more insulin to control the blood sugar.
Full Explanation
Choice A reason: Glucocorticoids can cause an increase in blood sugar by stimulating gluconeogenesis and inhibiting insulin action. Therefore, a patient with type 1 diabetes who is taking glucocorticoids will not have no change in blood sugar, but rather a rise in blood sugar.
Choice B reason: Glucocorticoids can cause an increase in blood pressure by promoting sodium and water retention and increasing vascular reactivity. Therefore, a patient with type 1 diabetes who is taking glucocorticoids will not have a decrease in the blood pressure, but rather a possible increase in the blood pressure.
Choice C reason: Glucocorticoids can cause an increase in blood sugar by stimulating gluconeogenesis and inhibiting insulin action. Therefore, a patient with type 1 diabetes who is taking glucocorticoids will have an increase in blood sugar. This is the correct statement that describes the expected effect of glucocorticoids in this patient.
Choice D reason: Glucocorticoids can cause an increase in blood sugar by stimulating gluconeogenesis and inhibiting insulin action. Therefore, a patient with type 1 diabetes who is taking glucocorticoids will not have an increase in the need for carbohydrates, but rather a need for more insulin to control the blood sugar.