Which statement is correct regarding beta receptors?
Beta 2 agonist decreases blood pressure
Beta 1 agonist increases blood pressure
Beta 2 agonist reduces blood pressure
Beta 1 agonist reduces blood pressure
The Correct Answer is B
Choice A: Beta 2 Agonist Decreases Blood Pressure
Beta 2 agonists primarily cause bronchodilation and vasodilation, which can lead to a decrease in blood pressure. However, this is not their primary function, and they are more commonly associated with the relaxation of smooth muscles in the airways.
Choice B: Beta 1 Agonist Increases Blood Pressure
Beta 1 receptors are primarily located in the heart. Activation of these receptors increases heart rate and contractility, which in turn increases cardiac output and blood pressure. Therefore, beta 1 agonists are known to increase blood pressure.
Choice C: Beta 2 Agonist Reduces Blood Pressure
Similar to choice A, beta 2 agonists can cause vasodilation, which may reduce blood pressure. However, this is not their primary therapeutic use, and they are mainly used for their bronchodilatory effects.
Choice D: Beta 1 Agonist Reduces Blood Pressure
Beta 1 agonists increase heart rate and contractility, leading to an increase in blood pressure. Therefore, this statement is incorrect as beta 1 agonists do not reduce blood pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason:
An idiosyncratic effect is an unusual or unexpected reaction to a drug that is not related to the dose and is not a common side effect. These reactions are often due to genetic differences in metabolism or immune response. In this case, shortness of breath is a known reaction for some patients taking the drug, so it is not considered idiosyncratic.
Choice B Reason:
A teratogenic effect refers to a drug’s potential to cause developmental abnormalities in a fetus when taken by a pregnant woman. Since the patient is experiencing shortness of breath, which is a known reaction to the drug, this choice is not relevant to the situation.
Choice C Reason:
This is the correct answer. A side effect is a secondary, typically undesirable effect of a drug or medical treatment. Since the nurse found that shortness of breath is a known reaction for some patients taking the drug, it is classified as a side effect. The nurse should report this to the provider to ensure proper management and monitoring.
Choice D Reason:
The symptom of shortness of breath is related to the medication administration, as confirmed by the drug administration manual. Therefore, this choice is incorrect. The nurse must report the side effect to the provider for appropriate action.
Correct Answer is B
Explanation
Choice A Reason:
Tertiary prevention involves measures taken to reduce the impact of an ongoing illness or injury that has lasting effects. This includes rehabilitation and efforts to prevent further complications or deterioration. Vaccination, however, is aimed at preventing the disease before it occurs, which does not align with the concept of tertiary prevention.
Choice B Reason:
Primary prevention refers to actions taken to prevent the onset of disease before it occurs. Vaccination is a classic example of primary prevention because it aims to protect individuals from contracting diseases by stimulating the immune system to recognize and fight specific pathogens. In this case, the meningococcal vaccine helps prevent meningitis, making it a primary preventive measure.
Choice C Reason:
Disease treatment involves managing and caring for a patient to combat a disease or condition. This includes interventions aimed at curing the disease, alleviating symptoms, or preventing complications. Vaccination does not fall under disease treatment because it is a preventive measure rather than a therapeutic one
Choice D Reason:
Secondary prevention focuses on early detection and prompt intervention to prevent the progression of a disease. This includes screening tests and early treatment of conditions to halt or slow their progression. Vaccination, however, is intended to prevent the disease from occurring in the first place, which is not the goal of secondary prevention.
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