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 ["A","B","E"]
Explanation
A. Respiratory rate and pulse: Albuterol is a bronchodilator medication commonly used to relieve bronchospasm in conditions like asthma and chronic obstructive pulmonary disease (COPD). Monitoring the patient's respiratory rate and pulse is essential to assess the response to the medication and any potential adverse effects.
B. Pulse oximetry: Albuterol helps to open the airways and improve oxygenation in patients with bronchospasm. Monitoring oxygen saturation using pulse oximetry provides valuable information about the patient's respiratory status and response to treatment.
C. Capillary refill: Capillary refill is typically assessed to evaluate peripheral perfusion and circulation. While it is an important assessment in certain clinical situations, it is not directly related to monitoring the response to albuterol administration.
D. Glucose: Glucose monitoring is not typically indicated after administering albuterol nebulizer unless the patient has a history of diabetes or there are specific concerns regarding glucose levels.
E. Lung sounds: Assessing lung sounds before and after administering albuterol helps to evaluate the effectiveness of the medication in relieving bronchospasm. Improvement in lung sounds, such as decreased wheezing or clearer breath sounds, indicates a positive response to treatment.
Correct Answer is D
Explanation
A) Inspiration:
Inspiration refers to the process of inhaling or breathing in air into the lungs. It involves the contraction of the diaphragm and expansion of the chest cavity, leading to the intake of air into the lungs.
B) Expiration:
Expiration, also known as exhalation, refers to the process of exhaling or breathing out air from the lungs. It involves the relaxation of the diaphragm and chest muscles, leading to the expulsion of air from the lungs.
C) Respiration:
Respiration is a broader term that encompasses both ventilation (the mechanical process of breathing) and gas exchange (the exchange of oxygen and carbon dioxide between the lungs and blood). While respiration involves both air movement and gas exchange, it does not specifically refer to blood flow through the lung, which is described by the term perfusion.
D) Perfusion.
Perfusion refers to the circulation of blood through the lung's blood vessels, including the pulmonary arteries and pulmonary capillaries. This process allows for the exchange of gases (oxygen and carbon dioxide) between the blood and the air in the lungs during respiration. Perfusion is essential for oxygenating blood and removing carbon dioxide, which is crucial for maintaining normal cellular function throughout the body.
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