A nurse is assisting in the care of a client who is receiving a dopamine infusion at a low dose for treatment of shock. Which of the following findings is an expected effect of this medication?
Lowered heart rate
Decreased conduction through the AV node
Increased urine output
Vasoconstriction of renal blood vessels
The Correct Answer is C
A) Lowered heart rate:
Dopamine typically increases heart rate as it acts on beta-adrenergic receptors in the heart, leading to increased cardiac contractility and chronotropy. However, at low doses, the effect on heart rate may be minimal compared to higher doses.
B) Decreased conduction through the AV node:
Dopamine may have minimal effects on conduction through the atrioventricular (AV) node, especially at low doses. It primarily acts on adrenergic receptors to increase cardiac contractility and heart rate.
C) Increased urine output.
Dopamine is a medication commonly used to treat shock by improving cardiac output and blood pressure. At low doses, dopamine primarily acts on dopamine receptors in the renal blood vessels, causing vasodilation and increased renal blood flow. This increased renal blood flow leads to increased glomerular filtration rate (GFR) and urine output. Therefore, increased urine output is an expected effect of dopamine infusion at low doses in the treatment of shock.
D) Vasoconstriction of renal blood vessels:
At low doses, dopamine primarily acts on dopamine receptors in the renal blood vessels, causing vasodilation and increased renal blood flow. Vasoconstriction of renal blood vessels is more commonly associated with higher doses of dopamine or with other vasopressor medications such as norepinephrine or phenylephrine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Hypotension: Norepinephrine is administered to treat hypotension, so monitoring for hypotension is not typically a concern while the patient is receiving this medication. In fact, hypotension is often the reason for administering norepinephrine in the first place.
B. Liver failure: Monitoring for signs of liver failure may be important in patients receiving certain medications, but it is not a specific consideration when administering norepinephrine. Norepinephrine primarily affects blood pressure regulation and does not typically have direct effects on liver function.
C. Bradycardia: While norepinephrine can increase blood pressure by constricting blood vessels, it may also cause reflex bradycardia (a decrease in heart rate) as a compensatory response. However, the primary concern with norepinephrine administration is hypertension, not bradycardia.
D. Hypertension
Norepinephrine (Levophed) is a vasopressor medication commonly used to treat hypotension and shock. It works by constricting blood vessels, which increases blood pressure. Therefore, when administering norepinephrine, the nurse should monitor the patient for hypertension, as the medication's intended effect is to raise blood pressure.
Correct Answer is A
Explanation
A) A stuffed animal.
Stuffed animals are often considered one of the most appropriate gifts for hospitalized children. They provide comfort, companionship, and a sense of security during a stressful and unfamiliar time. Stuffed animals can serve as cuddly companions for the child, offering emotional support and helping to alleviate anxiety and loneliness while in the hospital.
B) A plant:
While plants can brighten up a hospital room and add a touch of nature, they may not be the most suitable gift for a hospitalized child. Plants require care and maintenance, which may not be feasible or practical in a hospital setting. Additionally, some hospitals have restrictions on bringing plants into patient rooms due to concerns about allergies or infection control.
C) Flowers:
Flowers are a common gift to brighten someone's day, but they may not be the best choice for a hospitalized child. Some hospitals have policies restricting flowers in patient rooms due to concerns about pollen allergies and infection control. Additionally, flowers have a limited lifespan and require regular maintenance, which may not be practical in a hospital environment.
D) A book:
While reading can be a great way to pass the time and provide entertainment for a hospitalized child, it may not be the most appropriate gift in all cases. The child's age, interests, and current health status should be considered when selecting a book. Additionally, some children may not be in the mood for reading if they are feeling unwell or fatigued. A stuffed animal offers more immediate comfort and companionship.
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