The patient's family is asking questions about the medications used in the treatment for shock. The nurse explains that dopamine is one of the drugs being used and that it works:
(Select All that Apply.)
At high doses, to treat anaphylaxis.
At high doses, to increase cardiac output.
At low doses, to cause increased blood flow to the kidneys.
At low doses, to treat anaphylaxis.
To cause vasoconstriction and increase blood pressure.
Correct Answer : B,C,E
A. At high doses, to treat anaphylaxis: Dopamine is not used to treat anaphylaxis. Anaphylaxis is typically managed with medications such as epinephrine, antihistamines, and corticosteroids.
B. At high doses, to increase cardiac output: Dopamine is a medication commonly used in the treatment of shock, particularly in cases of hypotension. At higher doses, dopamine acts as a positive inotrope and increases cardiac contractility, thereby improving cardiac output and increasing blood pressure.
C. At low doses, to cause increased blood flow to the kidneys: At lower doses, dopamine primarily acts on dopaminergic receptors in the renal vasculature, leading to vasodilation of the renal blood vessels and increased renal perfusion. This can help improve renal blood flow and urine output, making it beneficial in cases of renal hypoperfusion or acute kidney injury.
D. At low doses, to treat anaphylaxis: Dopamine is not used to treat anaphylaxis at any dose. Anaphylaxis is managed with medications such as epinephrine, which acts on multiple receptors to reverse the systemic effects of the allergic reaction.
E. To cause vasoconstriction and increase blood pressure: Dopamine can also cause vasoconstriction, particularly at higher doses. This effect is mediated through its action on alpha-adrenergic receptors, leading to peripheral vasoconstriction and an increase in systemic vascular resistance, which in turn helps increase blood pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Montelukast:
Montelukast is a leukotriene receptor antagonist used for the long-term control and prevention of asthma symptoms, but it is not typically used as a rescue medication to abort an ongoing asthma attack. Its onset of action is slower compared to short-acting beta agonists like albuterol.
B) Fluticasone:
Fluticasone is an inhaled corticosteroid medication used for the long-term control and management of asthma symptoms by reducing airway inflammation and preventing asthma exacerbations. It is not used as a rescue medication to abort an ongoing asthma attack but rather as a controller medication to prevent symptoms when used regularly over time.
C) Cromolyn:
Cromolyn is a mast cell stabilizer medication that is used for the prevention of asthma symptoms and exercise-induced bronchospasm. It is not typically used as a rescue medication to abort an ongoing asthma attack but rather as a controller medication to prevent symptoms when used regularly over time.
D) Albuterol.
Albuterol is a short-acting beta agonist bronchodilator commonly used as a rescue or reliever medication for acute asthma symptoms or to abort an ongoing asthma attack. It works quickly to relax the smooth muscles of the airways, leading to rapid bronchodilation and relief of symptoms such as wheezing, shortness of breath, and chest tightness. Albuterol is considered a first-line medication for relieving acute asthma symptoms and should be used as directed by a healthcare provider during an asthma exacerbation.
Correct Answer is C
Explanation
A) Increase dosing with a large meal:
Increasing the dosing with a large meal may not be appropriate as it could lead to overdosing and potential side effects. The dosage of pancrelipase should be determined by the healthcare provider based on the individual's needs and response to treatment.
B) Take the medication at least 2 hours prior to meals:
Taking the medication prior to meals may not be effective as the enzymes will not be available when food is consumed, which defeats the purpose of enzyme replacement therapy. The enzymes need to be present simultaneously with the food to aid in digestion.
C) Take the medication with meals.
Pancrelipase, such as Cotazym, is a pancreatic enzyme replacement therapy used to aid in the digestion of fats, proteins, and carbohydrates in individuals with pancreatic insufficiency. Taking the medication with meals is crucial because it helps to ensure that the enzymes are available to aid in the digestion of food. Without proper enzyme supplementation during meals, individuals with pancreatic insufficiency may experience malabsorption, leading to nutritional deficiencies and gastrointestinal symptoms.
D) Decrease fluid intake:
Decreasing fluid intake is not appropriate as it could lead to dehydration and may not have any significant impact on the efficacy of pancrelipase. In fact, adequate fluid intake is important for digestion and overall health.
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