what is the correct definition for absorption of a drug
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Nursing Elites

ATI RN

Proctored Pharmacology ATI

1. What is the correct definition of drug absorption?

Correct answer: A

Rationale: The correct definition of drug absorption is the movement of a drug from the site of administration into various tissues of the body. It is the process by which a drug is taken up and enters the systemic circulation. Choice B describes the pharmacokinetics of drugs, including absorption, distribution, metabolism, and excretion, but it is not a specific definition of drug absorption. Choice C is unrelated to drug absorption, as it refers to over-the-counter drugs. Choice D is too vague and does not specifically address the process of drug absorption.

2. A client has a new prescription for Alteplase. Which of the following actions should the nurse plan to take?

Correct answer: D

Rationale: Alteplase is a thrombolytic agent used to dissolve blood clots. Patients receiving Alteplase are at risk for bleeding complications, including intracranial bleeding. Monitoring for changes in the level of consciousness is crucial as it can indicate early signs of bleeding, such as increased intracranial pressure. This rapid assessment allows for timely intervention and prevention of further complications. Choices A, B, and C are incorrect. Administering Alteplase within 4 hours of symptom onset is related to the time-sensitive nature of thrombolytic therapy for conditions like acute myocardial infarction or ischemic stroke. Reconstituting Alteplase with sterile saline is a correct step in preparing the medication for administration. Administering heparin concurrently with Alteplase is generally avoided due to the increased risk of bleeding.

3. A healthcare professional is preparing to administer heparin 15,000 units subcutaneously every 12 hours. The available heparin injection is 20,000 units/mL. How many milliliters should the healthcare professional administer per dose?

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. Since the volume needs to be rounded up to the nearest tenth, the correct answer is 0.8 mL. Choice B (0.75 mL) is incorrect because it does not account for rounding up the volume. Choices C (0.5 mL) and D (1 mL) are incorrect as they do not reflect the precise calculation based on the given concentration and desired dose.

4. A client is receiving warfarin therapy. Which of the following findings should the nurse identify as an adverse effect of warfarin?

Correct answer: B

Rationale: Epistaxis, or nosebleeds, can be an indication of excessive anticoagulation while on warfarin therapy. Warfarin is a blood thinner that helps prevent blood clots. Epistaxis can occur as a result of the blood-thinning effects of warfarin, leading to increased bleeding tendencies, including nosebleeds. Nausea, diarrhea, and dyspepsia are not typically associated with warfarin therapy; therefore, they are not the adverse effects the nurse should identify in a client receiving warfarin.

5. A client has a new prescription for Metoprolol to treat hypertension. Which of the following instructions should the nurse include?

Correct answer: C

Rationale: The correct instruction for a client taking Metoprolol, a medication used to treat hypertension, is to avoid sudden changes in position. Metoprolol can cause orthostatic hypotension, a sudden drop in blood pressure when moving from lying down to standing up, leading to dizziness and falls. By advising the client to change positions slowly, the nurse helps prevent these adverse effects and promotes safety.

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