ATI RN
ATI Pharmacology Quizlet
1. A healthcare provider is administering a Dopamine infusion at a low dose to a client who has severe heart failure. Which of the following findings is an expected effect of this medication?
- A. Lowered heart rate
- B. Increased myocardial contractility
- C. Decreased conduction through the AV node
- D. Vasoconstriction of renal blood vessels
Correct answer: B
Rationale: Dopamine, when administered at a low dose, acts on beta1 receptors in the heart, leading to increased myocardial contractility. This positive inotropic effect results in improved cardiac output, which is beneficial for a client with severe heart failure. Dopamine does not typically cause lowered heart rate, decreased conduction through the AV node, or vasoconstriction of renal blood vessels at low doses.
2. A healthcare professional is preparing to administer heparin 15,000 units subcutaneously every 12 hr. The amount available is heparin injection 20,000 units/mL. How many mL should the healthcare professional administer per dose?
- A. 0.8 mL
- B. 0.75 mL
- C. 0.5 mL
- D. 1 mL
Correct answer: A
Rationale: To calculate the volume to administer, use the formula: (Desired dose / Concentration) = Volume to administer. In this case, (15,000 units / 20,000 units/mL) = 0.75 mL, which is rounded up to 0.8 mL. Therefore, the healthcare professional should administer 0.8 mL per dose of heparin. Choice B (0.75 mL) is incorrect as it is the exact calculated volume but needs to be rounded up. Choices C (0.5 mL) and D (1 mL) are incorrect as they do not reflect the correct calculated volume for the desired dose of heparin.
3. A client has a new prescription for transdermal patches. Which statement should the client make to indicate understanding of the instructions?
- A. I will clean the site with an alcohol swab before applying the patch.
- B. I will rotate the application sites weekly.
- C. I will apply the patch to an area of skin with no hair.
- D. I will place the new patch on the site of the old patch.
Correct answer: C
Rationale: The correct answer is C. Applying the patch to a hairless area of skin is essential for optimal medication absorption. Hair can interfere with the patch's adherence and effectiveness. It is important for the client to choose a site without hair to ensure proper delivery of the medication. Choices A, B, and D are incorrect because cleaning the site with an alcohol swab (Choice A) is a good practice but not the most crucial aspect for transdermal patch application. Rotating application sites weekly (Choice B) is more relevant for injections to prevent skin irritation or breakdown. Placing the new patch on the site of the old patch (Choice D) can lead to skin irritation and poor absorption due to a build-up of medication.
4. A healthcare provider is caring for a 4-year-old child who is resistant to taking medication. Which of the following strategies should the healthcare provider use to elicit the child's cooperation?
- A. Offer the child a choice of taking the medication with juice or water
- B. Tell the child it is candy
- C. Hide the medication in a large dish of ice cream
- D. Tell the child they will have a shot instead
Correct answer: A
Rationale: Offering children choices empowers them and can help in gaining cooperation, especially when it comes to taking medications. By providing options like taking the medication with juice or water, the child feels a sense of control and may be more willing to cooperate. This approach respects the child's autonomy and can make the experience more positive for both the child and the healthcare provider. Choices B, C, and D are not ideal strategies as they involve deception or coercion, which can lead to distrust and make the child more resistant to taking medication in the future.
5. A nurse is providing teaching to a client who has asthma and is beginning to take montelukast. Which of the following statements by the client indicates an understanding of the teaching?
- A. I will use this medication as a rescue inhaler during asthma attacks.
- B. I should take this medication once daily in the evening.
- C. I need to have my blood levels checked regularly while taking this medication.
- D. I should take this medication before exercising to prevent bronchospasm.
Correct answer: B
Rationale: Montelukast is typically taken once daily in the evening for long-term control of asthma symptoms. It helps prevent asthma attacks by reducing inflammation in the airways. While montelukast can also be used for exercise-induced bronchospasm in some cases, it is generally not a rescue medication and should be taken regularly, not on an as-needed basis.
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